CMake 2.6.0 Docs
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cmake version 2.6-patch 0
------------------------------------------------------------------------------
Name
cmake - Cross-Platform Makefile Generator.
------------------------------------------------------------------------------
Usage
cmake [options] <path-to-source>
cmake [options] <path-to-existing-build>
------------------------------------------------------------------------------
Description
The "cmake" executable is the CMake command-line interface. It may be used
to configure projects in scripts. Project configuration settings may be
specified on the command line with the -D option. The -i option will cause
cmake to interactively prompt for such settings.
CMake is a cross-platform build system generator. Projects specify their
build process with platform-independent CMake listfiles included in each
directory of a source tree with the name CMakeLists.txt. Users build a
project by using CMake to generate a build system for a native tool on their
platform.
------------------------------------------------------------------------------
Options
-C <initial-cache>
Pre-load a script to populate the cache.
When cmake is first run in an empty build tree, it creates a
CMakeCache.txt file and populates it with customizable settings for
the project. This option may be used to specify a file from which to
load cache entries before the first pass through the project's cmake
listfiles. The loaded entries take priority over the project's
default values. The given file should be a CMake script containing
SET commands that use the CACHE option, not a cache-format file.
-D <var>:<type>=<value>
Create a cmake cache entry.
When cmake is first run in an empty build tree, it creates a
CMakeCache.txt file and populates it with customizable settings for
the project. This option may be used to specify a setting that takes
priority over the project's default value. The option may be repeated
for as many cache entries as desired.
-U <globbing_expr>
Remove matching entries from CMake cache.
This option may be used to remove one or more variables from the
CMakeCache.txt file, globbing expressions using * and ? are supported.
The option may be repeated for as many cache entries as desired.
Use with care, you can make your CMakeCache.txt non-working.
-G <generator-name>
Specify a makefile generator.
CMake may support multiple native build systems on certain platforms.
A makefile generator is responsible for generating a particular build
system. Possible generator names are specified in the Generators
section.
-Wno-dev
Suppress developer warnings.
Suppress warnings that are meant for the author of the CMakeLists.txt
files.
-Wdev
Enable developer warnings.
Enable warnings that are meant for the author of the CMakeLists.txt
files.
-E
CMake command mode.
For true platform independence, CMake provides a list of commands that
can be used on all systems. Run with -E help for the usage
information.
-i
Run in wizard mode.
Wizard mode runs cmake interactively without a GUI. The user is
prompted to answer questions about the project configuration. The
answers are used to set cmake cache values.
-L[A][H]
List non-advanced cached variables.
List cache variables will run CMake and list all the variables from
the CMake cache that are not marked as INTERNAL or ADVANCED. This
will effectively display current CMake settings, which can be then
changed with -D option. Changing some of the variable may result in
more variables being created. If A is specified, then it will display
also advanced variables. If H is specified, it will also display help
for each variable.
-N
View mode only.
Only load the cache. Do not actually run configure and generate
steps.
-P <file>
Process script mode.
Process the given cmake file as a script written in the CMake
language. No configure or generate step is performed and the cache is
not modified. If variables are defined using -D, this must be done
before the -P argument.
--graphviz=[file]
Generate graphviz of dependencies.
Generate a graphviz input file that will contain all the library and
executable dependencies in the project.
--system-information [file]
Dump information about this system.
Dump a wide range of information about the current system. If run
from the top of a binary tree for a CMake project it will dump
additional information such as the cache, log files etc.
--debug-trycompile
Do not delete the try compile directories..
Do not delete the files and directories created for try_compile calls.
This is useful in debugging failed try_compiles.
--debug-output
Put cmake in a debug mode.
Print extra stuff during the cmake run like stack traces with
message(send_error ) calls.
--help-command cmd [file]
Print help for a single command and exit.
Full documentation specific to the given command is displayed. If a
file is specified, the documentation is written into and the output
format is determined depending on the filename suffix. Supported are
man page, HTML, DocBook and plain text.
--help-command-list [file]
List available listfile commands and exit.
The list contains all commands for which help may be obtained by using
the --help-command argument followed by a command name. If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--help-commands [file]
Print help for all commands and exit.
Full documentation specific for all current command is displayed.If a
file is specified, the documentation is written into and the output
format is determined depending on the filename suffix. Supported are
man page, HTML, DocBook and plain text.
--help-compatcommands [file]
Print help for compatibility commands.
Full documentation specific for all compatibility commands is
displayed.If a file is specified, the documentation is written into
and the output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.
--help-module module [file]
Print help for a single module and exit.
Full documentation specific to the given module is displayed.If a file
is specified, the documentation is written into and the output format
is determined depending on the filename suffix. Supported are man
page, HTML, DocBook and plain text.
--help-module-list [file]
List available modules and exit.
The list contains all modules for which help may be obtained by using
the --help-module argument followed by a module name. If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--help-modules [file]
Print help for all modules and exit.
Full documentation for all modules is displayed. If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--help-custom-modules [file]
Print help for all custom modules and exit.
Full documentation for all custom modules is displayed. If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--help-property prop [file]
Print help for a single property and exit.
Full documentation specific to the given property is displayed.If a
file is specified, the documentation is written into and the output
format is determined depending on the filename suffix. Supported are
man page, HTML, DocBook and plain text.
--help-property-list [file]
List available properties and exit.
The list contains all properties for which help may be obtained by
using the --help-property argument followed by a property name. If a
file is specified, the help is written into it.If a file is specified,
the documentation is written into and the output format is determined
depending on the filename suffix. Supported are man page, HTML,
DocBook and plain text.
--help-properties [file]
Print help for all properties and exit.
Full documentation for all properties is displayed.If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--help-variable var [file]
Print help for a single variable and exit.
Full documentation specific to the given variable is displayed.If a
file is specified, the documentation is written into and the output
format is determined depending on the filename suffix. Supported are
man page, HTML, DocBook and plain text.
--help-variable-list [file]
List documented variables and exit.
The list contains all variables for which help may be obtained by
using the --help-variable argument followed by a variable name. If a
file is specified, the help is written into it.If a file is specified,
the documentation is written into and the output format is determined
depending on the filename suffix. Supported are man page, HTML,
DocBook and plain text.
--help-variables [file]
Print help for all variables and exit.
Full documentation for all variables is displayed.If a file is
specified, the documentation is written into and the output format is
determined depending on the filename suffix. Supported are man page,
HTML, DocBook and plain text.
--copyright [file]
Print the CMake copyright and exit.
If a file is specified, the copyright is written into it.
--help
Print usage information and exit.
Usage describes the basic command line interface and its options.
--help-full [file]
Print full help and exit.
Full help displays most of the documentation provided by the UNIX man
page. It is provided for use on non-UNIX platforms, but is also
convenient if the man page is not installed. If a file is specified,
the help is written into it.
--help-html [file]
Print full help in HTML format.
This option is used by CMake authors to help produce web pages. If a
file is specified, the help is written into it.
--help-man [file]
Print full help as a UNIX man page and exit.
This option is used by the cmake build to generate the UNIX man page.
If a file is specified, the help is written into it.
--version [file]
Show program name/version banner and exit.
If a file is specified, the version is written into it.
------------------------------------------------------------------------------
Generators
The following generators are available on this platform:
Unix Makefiles
Generates standard UNIX makefiles.
A hierarchy of UNIX makefiles is generated into the build tree. Any
standard UNIX-style make program can build the project through the
default make target. A "make install" target is also provided.
CodeBlocks - Unix Makefiles
Generates CodeBlocks project files.
Project files for CodeBlocks will be created in the top directory and
in every subdirectory which features a CMakeLists.txt file containing
a PROJECT() call. Additionally a hierarchy of makefiles is generated
into the build tree. The appropriate make program can build the
project through the default make target. A "make install" target is
also provided.
Eclipse CDT4 - Unix Makefiles
Generates Eclipse CDT 4.0 project files.
Project files for Eclipse will be created in the top directory and
will have a linked resource to every subdirectory which features a
CMakeLists.txt file containing a PROJECT() call.Additionally a
hierarchy of makefiles is generated into the build tree. The
appropriate make program can build the project through the default
make target. A "make install" target is also provided.
KDevelop3
Generates KDevelop 3 project files.
Project files for KDevelop 3 will be created in the top directory and
in every subdirectory which features a CMakeLists.txt file containing
a PROJECT() call. If you change the settings using KDevelop cmake
will try its best to keep your changes when regenerating the project
files. Additionally a hierarchy of UNIX makefiles is generated into
the build tree. Any standard UNIX-style make program can build the
project through the default make target. A "make install" target is
also provided.
KDevelop3 - Unix Makefiles
Generates KDevelop 3 project files.
Project files for KDevelop 3 will be created in the top directory and
in every subdirectory which features a CMakeLists.txt file containing
a PROJECT() call. If you change the settings using KDevelop cmake
will try its best to keep your changes when regenerating the project
files. Additionally a hierarchy of UNIX makefiles is generated into
the build tree. Any standard UNIX-style make program can build the
project through the default make target. A "make install" target is
also provided.
------------------------------------------------------------------------------
Commands
add_custom_command
Add a custom build rule to the generated build system.
There are two main signatures for add_custom_command The first
signature is for adding a custom command to produce an output.
add_custom_command(OUTPUT output1 [output2 ...]
COMMAND command1 [ARGS] [args1...]
[COMMAND command2 [ARGS] [args2...] ...]
[MAIN_DEPENDENCY depend]
[DEPENDS [depends...]]
[IMPLICIT_DEPENDS <lang1> depend1 ...]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM] [APPEND])
This defines a new command that can be executed during the build
process. The outputs named should be listed as source files in the
target for which they are to be generated. If an output name is a
relative path it will be interpreted relative to the build tree
directory corresponding to the current source directory. Note that
MAIN_DEPENDENCY is completely optional and is used as a suggestion to
visual studio about where to hang the custom command. In makefile
terms this creates a new target in the following form:
OUTPUT: MAIN_DEPENDENCY DEPENDS
COMMAND
If more than one command is specified they will be executed in order.
The optional ARGS argument is for backward compatibility and will be
ignored.
The second signature adds a custom command to a target such as a
library or executable. This is useful for performing an operation
before or after building the target. The command becomes part of the
target and will only execute when the target itself is built. If the
target is already built, the command will not execute.
add_custom_command(TARGET target
PRE_BUILD | PRE_LINK | POST_BUILD
COMMAND command1 [ARGS] [args1...]
[COMMAND command2 [ARGS] [args2...] ...]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM])
This defines a new command that will be associated with building the
specified target. When the command will happen is determined by which
of the following is specified:
PRE_BUILD - run before all other dependencies
PRE_LINK - run after other dependencies
POST_BUILD - run after the target has been built
Note that the PRE_BUILD option is only supported on Visual Studio 7 or
later. For all other generators PRE_BUILD will be treated as
PRE_LINK.
If WORKING_DIRECTORY is specified the command will be executed in the
directory given. If COMMENT is set, the value will be displayed as a
message before the commands are executed at build time. If APPEND is
specified the COMMAND and DEPENDS option values are appended to the
custom command for the first output specified. There must have
already been a previous call to this command with the same output.
The COMMENT, WORKING_DIRECTORY, and MAIN_DEPENDENCY options are
currently ignored when APPEND is given, but may be used in the future.
If VERBATIM is given then all the arguments to the commands will be
passed exactly as specified no matter the build tool used. Note that
one level of escapes is still used by the CMake language processor
before ADD_CUSTOM_TARGET even sees the arguments. Use of VERBATIM is
recommended as it enables correct behavior. When VERBATIM is not
given the behavior is platform specific. In the future VERBATIM may
be enabled by default. The only reason it is an option is to preserve
compatibility with older CMake code.
If the output of the custom command is not actually created as a file
on disk it should be marked as SYMBOLIC with
SET_SOURCE_FILES_PROPERTIES.
The IMPLICIT_DEPENDS option requests scanning of implicit dependencies
of an input file. The language given specifies the programming
language whose corresponding dependency scanner should be used.
Currently only C and CXX language scanners are supported.
Dependencies discovered from the scanning are added to those of the
custom command at build time. Note that the IMPLICIT_DEPENDS option
is currently supported only for Makefile generators and will be
ignored by other generators.
If COMMAND specifies an executable target (created by ADD_EXECUTABLE)
it will automatically be replaced by the location of the executable
created at build time. Additionally a target-level dependency will be
added so that the executable target will be built before any target
using this custom command. However this does NOT add a file-level
dependency that would cause the custom command to re-run whenever the
executable is recompiled.
If DEPENDS specifies any target (created by an ADD_* command) a
target-level dependency is created to make sure the target is built
before any target using this custom command. Additionally, if the
target is an executable or library a file-level dependency is created
to cause the custom command to re-run whenever the target is
recompiled.
add_custom_target
Add a target with no output so it will always be built.
add_custom_target(Name [ALL] [command1 [args1...]]
[COMMAND command2 [args2...] ...]
[DEPENDS depend depend depend ... ]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM])
Adds a target with the given name that executes the given commands.
The target has no output file and is ALWAYS CONSIDERED OUT OF DATE
even if the commands try to create a file with the name of the target.
Use ADD_CUSTOM_COMMAND to generate a file with dependencies. By
default nothing depends on the custom target. Use ADD_DEPENDENCIES to
add dependencies to or from other targets. If the ALL option is
specified it indicates that this target should be added to the default
build target so that it will be run every time (the command cannot be
called ALL). The command and arguments are optional and if not
specified an empty target will be created. If WORKING_DIRECTORY is
set, then the command will be run in that directory. If COMMENT is
set, the value will be displayed as a message before the commands are
executed at build time. Dependencies listed with the DEPENDS argument
may reference files and outputs of custom commands created with
ADD_CUSTOM_COMMAND.
If VERBATIM is given then all the arguments to the commands will be
passed exactly as specified no matter the build tool used. Note that
one level of escapes is still used by the CMake language processor
before add_custom_target even sees the arguments. Use of VERBATIM is
recommended as it enables correct behavior. When VERBATIM is not
given the behavior is platform specific. In the future VERBATIM may
be enabled by default. The only reason it is an option is to preserve
compatibility with older CMake code.
add_definitions
Adds -D define flags to the compilation of source files.
add_definitions(-DFOO -DBAR ...)
Adds flags to the compiler command line for sources in the current
directory and below. This command can be used to add any flags, but
it was originally intended to add preprocessor definitions. Flags
beginning in -D or /D that look like preprocessor definitions are
automatically added to the COMPILE_DEFINITIONS property for the
current directory. Definitions with non-trival values may be left in
the set of flags instead of being converted for reasons of backwards
compatibility. See documentation of the directory, target, and source
file COMPILE_DEFINITIONS properties for details on adding preprocessor
definitions to specific scopes and configurations.
add_dependencies
Add a dependency between top-level targets.
add_dependencies(target-name depend-target1
depend-target2 ...)
Make a top-level target depend on other top-level targets. A
top-level target is one created by ADD_EXECUTABLE, ADD_LIBRARY, or
ADD_CUSTOM_TARGET. Adding dependencies with this command can be used
to make sure one target is built before another target. See the
DEPENDS option of ADD_CUSTOM_TARGET and ADD_CUSTOM_COMMAND for adding
file-level dependencies in custom rules. See the OBJECT_DEPENDS
option in SET_SOURCE_FILES_PROPERTIES to add file-level dependencies
to object files.
add_executable
Add an executable to the project using the specified source files.
add_executable(<name> [WIN32] [MACOSX_BUNDLE] [EXCLUDE_FROM_ALL]
source1 source2 ... sourceN)
Adds an executable target called <name> to be built from the source
files listed in the command invocation. The <name> corresponds to the
logical target name and must be globally unique within a project. The
actual file name of the executable built is constructed based on
conventions of the native platform (such as <name>.exe or just
<name>).
By default the executable file will be created in the build tree
directory corresponding to the source tree directory in which the
command was invoked. See documentation of the
RUNTIME_OUTPUT_DIRECTORY target property to change this location. See
documentation of the OUTPUT_NAME target property to change the <name>
part of the final file name.
If WIN32 is given the property WIN32_EXECUTABLE will be set on the
target created. See documentation of that target property for
details.
If MACOSX_BUNDLE is given the corresponding property will be set on
the created target. See documentation of the MACOSX_BUNDLE target
property for details.
If EXCLUDE_FROM_ALL is given the corresponding property will be set on
the created target. See documentation of the EXCLUDE_FROM_ALL target
property for details.
The add_executable command can also create IMPORTED executable targets
using this signature:
add_executable(<name> IMPORTED)
An IMPORTED executable target references an executable file located
outside the project. No rules are generated to build it. The target
name has scope in the directory in which it is created and below. It
may be referenced like any target built within the project. IMPORTED
executables are useful for convenient reference from commands like
add_custom_command. Details about the imported executable are
specified by setting properties whose names begin in "IMPORTED_". The
most important such property is IMPORTED_LOCATION (and its
per-configuration version IMPORTED_LOCATION_<CONFIG>) which specifies
the location of the main executable file on disk. See documentation
of the IMPORTED_* properties for more information.
add_library
Add a library to the project using the specified source files.
add_library(<name> [STATIC | SHARED | MODULE] [EXCLUDE_FROM_ALL]
source1 source2 ... sourceN)
Adds a library target called <name> to be built from the source files
listed in the command invocation. The <name> corresponds to the
logical target name and must be globally unique within a project. The
actual file name of the library built is constructed based on
conventions of the native platform (such as lib<name>.a or
<name>.lib).
STATIC, SHARED, or MODULE may be given to specify the type of library
to be created. STATIC libraries are archives of object files for use
when linking other targets. SHARED libraries are linked dynamically
and loaded at runtime. MODULE libraries are plugins that are not
linked into other targets but may be loaded dynamically at runtime
using dlopen-like functionality. If no type is given explicitly the
type is STATIC or SHARED based on whether the current value of the
variable BUILD_SHARED_LIBS is true.
By default the library file will be created in the build tree
directory corresponding to the source tree directory in which the
command was invoked. See documentation of the
ARCHIVE_OUTPUT_DIRECTORY, LIBRARY_OUTPUT_DIRECTORY, and
RUNTIME_OUTPUT_DIRECTORY target properties to change this location.
See documentation of the OUTPUT_NAME target property to change the
<name> part of the final file name.
If EXCLUDE_FROM_ALL is given the corresponding property will be set on
the created target. See documentation of the EXCLUDE_FROM_ALL target
property for details.
The add_library command can also create IMPORTED library targets using
this signature:
add_library(<name> <SHARED|STATIC|MODULE> IMPORTED)
An IMPORTED library target references a library file located outside
the project. No rules are generated to build it. The target name has
scope in the directory in which it is created and below. It may be
referenced like any target built within the project. IMPORTED
libraries are useful for convenient reference from commands like
target_link_libraries. Details about the imported library are
specified by setting properties whose names begin in "IMPORTED_". The
most important such property is IMPORTED_LOCATION (and its
per-configuration version IMPORTED_LOCATION_<CONFIG>) which specifies
the location of the main library file on disk. See documentation of
the IMPORTED_* properties for more information.
add_subdirectory
Add a subdirectory to the build.
add_subdirectory(source_dir [binary_dir]
[EXCLUDE_FROM_ALL])
Add a subdirectory to the build. The source_dir specifies the
directory in which the source CmakeLists.txt and code files are
located. If it is a relative path it will be evaluated with respect
to the current directory (the typical usage), but it may also be an
absolute path. The binary_dir specifies the directory in which to
place the output files. If it is a relative path it will be evaluated
with respect to the current output directory, but it may also be an
absolute path. If binary_dir is not specified, the value of
source_dir, before expanding any relative path, will be used (the
typical usage). The CMakeLists.txt file in the specified source
directory will be processed immediately by CMake before processing in
the current input file continues beyond this command.
If the EXCLUDE_FROM_ALL argument is provided then this subdirectory
will not be included in build by default. Users will have to
explicitly start a build in the generated output directory. This is
useful for having cmake create a build system for a set of examples in
a project. One would want cmake to generate a single build system for
all the examples, but one may not want the targets to show up in the
main build system.
add_test
Add a test to the project with the specified arguments.
add_test(testname Exename arg1 arg2 ...)
If the ENABLE_TESTING command has been run, this command adds a test
target to the current directory. If ENABLE_TESTING has not been run,
this command does nothing. The tests are run by the testing subsystem
by executing Exename with the specified arguments. Exename can be
either an executable built by this project or an arbitrary executable
on the system (like tclsh). The test will be run with the current
working directory set to the CMakeList.txt files corresponding
directory in the binary tree.
aux_source_directory
Find all source files in a directory.
aux_source_directory(<dir> <variable>)
Collects the names of all the source files in the specified directory
and stores the list in the <variable> provided. This command is
intended to be used by projects that use explicit template
instantiation. Template instantiation files can be stored in a
"Templates" subdirectory and collected automatically using this
command to avoid manually listing all instantiations.
It is tempting to use this command to avoid writing the list of source
files for a library or executable target. While this seems to work,
there is no way for CMake to generate a build system that knows when a
new source file has been added. Normally the generated build system
knows when it needs to rerun CMake because the CMakeLists.txt file is
modified to add a new source. When the source is just added to the
directory without modifying this file, one would have to manually
rerun CMake to generate a build system incorporating the new file.
break
Break from an enclosing foreach or while loop.
break()
Breaks from an enclosing foreach loop or while loop
build_command
Get the command line that will build this project.
build_command(<variable> <makecommand>)
Sets the given <variable> to a string containing the command that will
build this project from the root of the build tree using the build
tool given by <makecommand>. <makecommand> should be msdev, nmake,
make or one of the end user build tools. This is useful for
configuring testing systems.
cmake_minimum_required
Set the minimum required version of cmake for a project.
cmake_minimum_required(VERSION major[.minor[.patch]]
[FATAL_ERROR])
If the current version of CMake is lower than that required it will
stop processing the project and report an error. When a version
higher than 2.4 is specified the command implicitly invokes
cmake_policy(VERSION major[.minor[.patch]])
which sets the cmake policy version level to the version specified.
When version 2.4 or lower is given the command implicitly invokes
cmake_policy(VERSION 2.4)
which enables compatibility features for CMake 2.4 and lower.
The FATAL_ERROR option is accepted but ignored. It is left from CMake
versions 2.4 and lower in which failure to meet the minimum version
was a warning by default.
cmake_policy
Manage CMake Policy settings.
As CMake evolves it is sometimes necessary to change existing behavior
in order to fix bugs or improve implementations of existing features.
The CMake Policy mechanism is designed to help keep existing projects
building as new versions of CMake introduce changes in behavior. Each
new policy (behavioral change) is given an identifier of the form
"CMP<NNNN>" where "<NNNN>" is an integer index. Documentation
associated with each policy describes the OLD and NEW behavior and the
reason the policy was introduced. Projects may set each policy to
select the desired behavior. When CMake needs to know which behavior
to use it checks for a setting specified by the project. If no
setting is available the OLD behavior is assumed and a warning is
produced requesting that the policy be set.
The cmake_policy command is used to set policies to OLD or NEW
behavior. While setting policies individually is supported, we
encourage projects to set policies based on CMake versions.
cmake_policy(VERSION major.minor[.patch])
Specify that the current CMake list file is written for the given
version of CMake. All policies introduced in the specified version or
earlier will be set to use NEW behavior. All policies introduced
after the specified version will be reset to use OLD behavior with a
warning. This effectively requests behavior preferred as of a given
CMake version and tells newer CMake versions to warn about their new
policies. The policy version specified must be at least 2.4 or the
command will report an error. In order to get compatibility features
supporting versions earlier than 2.4 see documentation of policy
CMP0001.
cmake_policy(SET CMP<NNNN> NEW)
cmake_policy(SET CMP<NNNN> OLD)
Tell CMake to use the OLD or NEW behavior for a given policy.
Projects depending on the old behavior of a given policy may silence a
policy warning by setting the policy state to OLD. Alternatively one
may fix the project to work with the new behavior and set the policy
state to NEW.
cmake_policy(PUSH)
cmake_policy(POP)
Push and pop the current policy setting state on a stack. Each PUSH
must have a matching POP. This is useful when mixing multiple
projects, subprojects, and files included from external projects that
may each have been written for a different version of CMake. Each
subdirectory entered by the project automatically pushes a new level
on the stack to isolate the subdirectories from their parents.
configure_file
Copy a file to another location and modify its contents.
configure_file(InputFile OutputFile
[COPYONLY] [ESCAPE_QUOTES] [@ONLY])
The Input and Output files have to have full paths. This command
replaces any variables in the input file referenced as ${VAR} or @VAR@
with their values as determined by CMake. If a variable is not
defined, it will be replaced with nothing. If COPYONLY is specified,
then no variable expansion will take place. If ESCAPE_QUOTES is
specified then any substituted quotes will be C-style escaped. The
file will be configured with the current values of CMake variables.
If @ONLY is specified, only variables of the form @VAR@ will be
replaces and ${VAR} will be ignored. This is useful for configuring
scripts that use ${VAR}. Any occurrences of #cmakedefine VAR will be
replaced with either #define VAR or /* #undef VAR */ depending on the
setting of VAR in CMake
create_test_sourcelist
Create a test driver and source list for building test programs.
create_test_sourcelist(sourceListName driverName
test1 test2 test3
EXTRA_INCLUDE include.h
FUNCTION function)
A test driver is a program that links together many small tests into a
single executable. This is useful when building static executables
with large libraries to shrink the total required size. The list of
source files needed to build the test driver will be in
sourceListName. DriverName is the name of the test driver program.
The rest of the arguments consist of a list of test source files, can
be semicolon separated. Each test source file should have a function
in it that is the same name as the file with no extension (foo.cxx
should have int foo(int, char*[]);) DriverName will be able to call
each of the tests by name on the command line. If EXTRA_INCLUDE is
specified, then the next argument is included into the generated file.
If FUNCTION is specified, then the next argument is taken as a
function name that is passed a pointer to ac and av. This can be used
to add extra command line processing to each test. The cmake variable
CMAKE_TESTDRIVER_BEFORE_TESTMAIN can be set to have code that will be
placed directly before calling the test main function.
CMAKE_TESTDRIVER_AFTER_TESTMAIN can be set to have code that will be
placed directly after the call to the test main function.
define_property
Define and document custom properties.
define_property(<GLOBAL | DIRECTORY | TARGET | SOURCE |
TEST | VARIABLE | CACHED_VARIABLE>
PROPERTY <name> [INHERITED]
BRIEF_DOCS <brief-doc>
FULL_DOCS <full-doc>)
Define one property in a scope for use with the set_property and
get_property commands. This is primarily useful to associate
documentation with property names that may be retrieved with the
get_property command. The first argument determines the kind of scope
in which the property should be used. It must be one of the
following:
GLOBAL = associated with the global namespace
DIRECTORY = associated with one directory
TARGET = associated with one target
SOURCE = associated with one source file
TEST = associated with a test named with add_test command
VARIABLE = documents a CMake language variable
CACHED_VARIABLE = documents a CMake cache variable
Note that unlike set_property and get_property no actual scope needs
to be given; only the kind of scope is important.
The required PROPERTY option is immediately followed by the name of
the property being defined.
If the INHERITED option then the get_property command will chain up to
the next higher scope when the requested property is not set in the
scope given to the command. DIRECTORY scope chains to GLOBAL.
TARGET, SOURCE, and TEST chain to DIRECTORY.
The BRIEF_DOCS and FULL_DOCS options are followed by strings to be
associated with the property as its brief and full documentation.
Corresponding options to the get_property command will retrieve the
documentation.
else
Starts the else portion of an if block.
else(expression)
See the if command.
elseif
Starts the elseif portion of an if block.
elseif(expression)
See the if command.
enable_language
Enable a language (CXX/C/Fortran/etc)
enable_language(languageName [OPTIONAL] )
This command enables support for the named language in CMake. This is
the same as the project command but does not create any of the extra
variables that are created by the project command. Example languages
are CXX, C, Fortran.
If OPTIONAL is used, use the CMAKE_<languageName>_COMPILER_WORKS
variable to check whether the language has been enabled successfully.
enable_testing
Enable testing for current directory and below.
enable_testing()
Enables testing for this directory and below. See also the add_test
command. Note that ctest expects to find a test file in the build
directory root. Therefore, this command should be in the source
directory root.
endforeach
Ends a list of commands in a FOREACH block.
endforeach(expression)
See the FOREACH command.
endfunction
Ends a list of commands in a function block.
endfunction(expression)
See the function command.
endif
Ends a list of commands in an if block.
endif(expression)
See the if command.
endmacro
Ends a list of commands in a macro block.
endmacro(expression)
See the macro command.
endwhile
Ends a list of commands in a while block.
endwhile(expression)
See the while command.
execute_process
Execute one or more child processes.
execute_process(COMMAND <cmd1> [args1...]]
[COMMAND <cmd2> [args2...] [...]]
[WORKING_DIRECTORY <directory>]
[TIMEOUT <seconds>]
[RESULT_VARIABLE <variable>]
[OUTPUT_VARIABLE <variable>]
[ERROR_VARIABLE <variable>]
[INPUT_FILE <file>]
[OUTPUT_FILE <file>]
[ERROR_FILE <file>]
[OUTPUT_QUIET]
[ERROR_QUIET]
[OUTPUT_STRIP_TRAILING_WHITESPACE]
[ERROR_STRIP_TRAILING_WHITESPACE])
Runs the given sequence of one or more commands with the standard
output of each process piped to the standard input of the next. A
single standard error pipe is used for all processes. If
WORKING_DIRECTORY is given the named directory will be set as the
current working directory of the child processes. If TIMEOUT is given
the child processes will be terminated if they do not finish in the
specified number of seconds (fractions are allowed). If
RESULT_VARIABLE is given the variable will be set to contain the
result of running the processes. This will be an integer return code
from the last child or a string describing an error condition. If
OUTPUT_VARIABLE or ERROR_VARIABLE are given the variable named will be
set with the contents of the standard output and standard error pipes
respectively. If the same variable is named for both pipes their
output will be merged in the order produced. If INPUT_FILE,
OUTPUT_FILE, or ERROR_FILE is given the file named will be attached to
the standard input of the first process, standard output of the last
process, or standard error of all processes respectively. If
OUTPUT_QUIET or ERROR_QUIET is given then the standard output or
standard error results will be quietly ignored. If more than one
OUTPUT_* or ERROR_* option is given for the same pipe the precedence
is not specified. If no OUTPUT_* or ERROR_* options are given the
output will be shared with the corresponding pipes of the CMake
process itself.
The execute_process command is a newer more powerful version of
exec_program, but the old command has been kept for compatibility.
export
Export targets from the build tree for use by outside projects.
export(TARGETS [target1 [target2 [...]]] [NAMESPACE <namespace>]
[APPEND] FILE <filename>)
Create a file <filename> that may be included by outside projects to
import targets from the current project's build tree. This is useful
during cross-compiling to build utility executables that can run on
the host platform in one project and then import them into another
project being compiled for the target platform. If the NAMESPACE
option is given the <namespace> string will be prepended to all target
names written to the file. If the APPEND option is given the
generated code will be appended to the file instead of overwriting it.
If a library target is included in the export but a target to which it
links is not included the behavior is unspecified.
The file created by this command is specific to the build tree and
should never be installed. See the install(EXPORT) command to export
targets from an installation tree.
file
File manipulation command.
file(WRITE filename "message to write"... )
file(APPEND filename "message to write"... )
file(READ filename variable [LIMIT numBytes] [OFFSET offset] [HEX])
file(STRINGS filename variable [LIMIT_COUNT num]
[LIMIT_INPUT numBytes] [LIMIT_OUTPUT numBytes]
[LENGTH_MINIMUM numBytes] [LENGTH_MAXIMUM numBytes]
[NEWLINE_CONSUME] [REGEX regex]
[NO_HEX_CONVERSION])
file(GLOB variable [RELATIVE path] [globbing expressions]...)
file(GLOB_RECURSE variable [RELATIVE path]
[globbing expressions]...)
file(REMOVE [file1 ...])
file(REMOVE_RECURSE [file1 ...])
file(MAKE_DIRECTORY [directory1 directory2 ...])
file(RELATIVE_PATH variable directory file)
file(TO_CMAKE_PATH path result)
file(TO_NATIVE_PATH path result)
file(DOWNLOAD url file [TIMEOUT timeout] [STATUS status] [LOG log])
WRITE will write a message into a file called 'filename'. It
overwrites the file if it already exists, and creates the file if it
does not exist.
APPEND will write a message into a file same as WRITE, except it will
append it to the end of the file
READ will read the content of a file and store it into the variable.
It will start at the given offset and read up to numBytes. If the
argument HEX is given, the binary data will be converted to
hexadecimal representation and this will be stored in the variable.
STRINGS will parse a list of ASCII strings from a file and store it in
a variable. Binary data in the file are ignored. Carriage return
(CR) characters are ignored. It works also for Intel Hex and Motorola
S-record files, which are automatically converted to binary format
when reading them. Disable this using NO_HEX_CONVERSION.
LIMIT_COUNT sets the maximum number of strings to return. LIMIT_INPUT
sets the maximum number of bytes to read from the input file.
LIMIT_OUTPUT sets the maximum number of bytes to store in the output
variable. LENGTH_MINIMUM sets the minimum length of a string to
return. Shorter strings are ignored. LENGTH_MAXIMUM sets the maximum
length of a string to return. Longer strings are split into strings
no longer than the maximum length. NEWLINE_CONSUME allows newlines to
be included in strings instead of terminating them.
REGEX specifies a regular expression that a string must match to be
returned. Typical usage
file(STRINGS myfile.txt myfile)
stores a list in the variable "myfile" in which each item is a line
from the input file.
GLOB will generate a list of all files that match the globbing
expressions and store it into the variable. Globbing expressions are
similar to regular expressions, but much simpler. If RELATIVE flag is
specified for an expression, the results will be returned as a
relative path to the given path.
Examples of globbing expressions include:
*.cxx - match all files with extension cxx
*.vt? - match all files with extension vta,...,vtz
f[3-5].txt - match files f3.txt, f4.txt, f5.txt
GLOB_RECURSE will generate similar list as the regular GLOB, except it
will traverse all the subdirectories of the matched directory and
match the files.
Examples of recursive globbing include:
/dir/*.py - match all python files in /dir and subdirectories
MAKE_DIRECTORY will create the given directories, also if their parent
directories don't exist yet
REMOVE will remove the given files, also in subdirectories
REMOVE_RECURSE will remove the given files and directories, also
non-empty directories
RELATIVE_PATH will determine relative path from directory to the given
file.
TO_CMAKE_PATH will convert path into a cmake style path with unix /.
The input can be a single path or a system path like "$ENV{PATH}".
Note the double quotes around the ENV call TO_CMAKE_PATH only takes
one argument.
TO_NATIVE_PATH works just like TO_CMAKE_PATH, but will convert from a
cmake style path into the native path style \ for windows and / for
UNIX.
DOWNLOAD will download the givin URL to the given file. If LOG var is
specified a log of the download will be put in var. If STATUS var is
specified the status of the operation will be put in var. The status
is returned in a list of length 2. The first element is the numeric
return value for the operation, and the second element is a string
value for the error. A 0 numeric error means no error in the
operation. If TIMEOUT time is specified, the operation will timeout
after time seconds, time can be specified as a float.
find_file
Find the full path to a file.
find_path(<VAR> name1 [path1 path2 ...])
This is the short-hand signature for the command that is sufficient in
many cases. It is the same as find_path(<VAR> name1 [PATHS path1
path2 ...])
find_path(
<VAR>
name | NAMES name1 [name2 ...]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)
This command is used to find a full path to named file. A cache entry
named by <VAR> is created to store the result of this command. If the
full path to a file is found the result is stored in the variable and
the search will not be repeated unless the variable is cleared. If
nothing is found, the result will be <VAR>-NOTFOUND, and the search
will be attempted again the next time find_path is invoked with the
same variable. The name of the full path to a file that is searched
for is specified by the names listed after the NAMES argument.
Additional search locations can be specified after the PATHS argument.
If ENV var is found in the PATHS section the environment variable var
will be read and converted from a system environment variable to a
cmake style list of paths. For example ENV PATH would be a way to
list the system path variable. The argument after DOC will be used
for the documentation string in the cache. PATH_SUFFIXES can be used
to give sub directories that will be appended to the search paths.
If NO_DEFAULT_PATH is specified, then no additional paths are added to
the search. If NO_DEFAULT_PATH is not specified, the search process
is as follows:
1. Search cmake specific environment variables. This can be skipped
if NO_CMAKE_ENVIRONMENT_PATH is passed.
<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH
2. Search cmake variables with the same names as the cmake specific
environment variables. These are intended to be used on the command
line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH is
passed.
<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH
3. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.
PATH
INCLUDE
4. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.
<prefix>/include for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_INCLUDE_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH
5. Search the paths specified after PATHS or in the short-hand
version of the command.
On Darwin or systems supporting OS X Frameworks, the cmake variable
CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:
"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.
On Darwin or systems supporting OS X Application Bundles, the cmake
variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the
following:
"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.
The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories. This
effectively "re-roots" the entire search under given locations. By
default it is empty. It is especially useful when cross-compiling to
point to the root directory of the target environment and CMake will
search there too. By default at first the directories listed in
CMAKE_FIND_ROOT_PATH and then the non-rooted directories will be
searched. The default behavior can be adjusted by setting
CMAKE_FIND_ROOT_PATH_MODE_INCLUDE. This behavior can be manually
overridden on a per-call basis. By using CMAKE_FIND_ROOT_PATH_BOTH
the search order will be as described above. If
NO_CMAKE_FIND_ROOT_PATH is used then CMAKE_FIND_ROOT_PATH will not be
used. If ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted
directories will be searched.
The reason the paths listed in the call to the command are searched
last is that most users of CMake would expect things to be found first
in the locations specified by their environment. Projects may
override this behavior by simply calling the command twice:
find_path(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_path(<VAR> NAMES name)
Once one of these calls succeeds the result variable will be set and
stored in the cache so that neither call will search again.
find_library
Find a library.
find_library(<VAR> name1 [path1 path2 ...])
This is the short-hand signature for the command that is sufficient in
many cases. It is the same as find_library(<VAR> name1 [PATHS path1
path2 ...])
find_library(
<VAR>
name | NAMES name1 [name2 ...]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)
This command is used to find a library. A cache entry named by <VAR>
is created to store the result of this command. If the library is
found the result is stored in the variable and the search will not be
repeated unless the variable is cleared. If nothing is found, the
result will be <VAR>-NOTFOUND, and the search will be attempted again
the next time find_library is invoked with the same variable. The
name of the library that is searched for is specified by the names
listed after the NAMES argument. Additional search locations can be
specified after the PATHS argument. If ENV var is found in the PATHS
section the environment variable var will be read and converted from a
system environment variable to a cmake style list of paths. For
example ENV PATH would be a way to list the system path variable. The
argument after DOC will be used for the documentation string in the
cache. PATH_SUFFIXES can be used to give sub directories that will be
appended to the search paths.
If NO_DEFAULT_PATH is specified, then no additional paths are added to
the search. If NO_DEFAULT_PATH is not specified, the search process
is as follows:
1. Search cmake specific environment variables. This can be skipped
if NO_CMAKE_ENVIRONMENT_PATH is passed.
<prefix>/lib for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_LIBRARY_PATH
CMAKE_FRAMEWORK_PATH
2. Search cmake variables with the same names as the cmake specific
environment variables. These are intended to be used on the command
line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH is
passed.
<prefix>/lib for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_LIBRARY_PATH
CMAKE_FRAMEWORK_PATH
3. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.
PATH
LIB
4. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.
<prefix>/lib for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_LIBRARY_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH
5. Search the paths specified after PATHS or in the short-hand
version of the command.
On Darwin or systems supporting OS X Frameworks, the cmake variable
CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:
"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.
On Darwin or systems supporting OS X Application Bundles, the cmake
variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the
following:
"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.
The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories. This
effectively "re-roots" the entire search under given locations. By
default it is empty. It is especially useful when cross-compiling to
point to the root directory of the target environment and CMake will
search there too. By default at first the directories listed in
CMAKE_FIND_ROOT_PATH and then the non-rooted directories will be
searched. The default behavior can be adjusted by setting
CMAKE_FIND_ROOT_PATH_MODE_LIBRARY. This behavior can be manually
overridden on a per-call basis. By using CMAKE_FIND_ROOT_PATH_BOTH
the search order will be as described above. If
NO_CMAKE_FIND_ROOT_PATH is used then CMAKE_FIND_ROOT_PATH will not be
used. If ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted
directories will be searched.
The reason the paths listed in the call to the command are searched
last is that most users of CMake would expect things to be found first
in the locations specified by their environment. Projects may
override this behavior by simply calling the command twice:
find_library(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_library(<VAR> NAMES name)
Once one of these calls succeeds the result variable will be set and
stored in the cache so that neither call will search again.
If the library found is a framework, then VAR will be set to the full
path to the framework <fullPath>/A.framework. When a full path to a
framework is used as a library, CMake will use a -framework A, and a
-F<fullPath> to link the framework to the target.
find_package
Load settings for an external project.
find_package(<package> [major[.minor[.patch]]] [EXACT] [QUIET]
[[REQUIRED|COMPONENTS] [components...]])
Finds and loads settings from an external project. <package>_FOUND
will be set to indicate whether the package was found. When the
package is found package-specific information is provided through
variables documented by the package itself. The QUIET option disables
messages if the package cannot be found. The REQUIRED option stops
processing with an error message if the package cannot be found. A
package-specific list of components may be listed after the REQUIRED
option or after the COMPONENTS option if no REQUIRED option is given.
The "[major[.minor[.patch]]]" version argument specifies a desired
version with which the package found should be compatible. The EXACT
option requests that the version be matched exactly. Version support
is currently provided only on a package-by-package basis (details
below).
User code should generally look for packages using the above simple
signature. The remainder of this command documentation specifies the
full command signature and details of the search process. Project
maintainers wishing to provide a package to be found by this command
are encouraged to read on.
The command has two modes by which it searches for packages: "Module"
mode and "Config" mode. Module mode is available when the command is
invoked with the above reduced signature. CMake searches for a file
called "Find<package>.cmake" in the CMAKE_MODULE_PATH followed by the
CMake installation. If the file is found, it is read and processed by
CMake. It is responsible for finding the package, checking the
version, and producing any needed messages. Many find-modules provide
limited or no support for versioning; check the module documentation.
If no module is found the command proceeds to Config mode.
The complete Config mode command signature is:
find_package(<package> [major[.minor[.patch]]] [EXACT] [QUIET]
[[REQUIRED|COMPONENTS] [components...]] [NO_MODULE]
[NAMES name1 [name2 ...]]
[CONFIGS config1 [config2 ...]]
[PATHS path1 [path2 ... ]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_BUILDS_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH])
The NO_MODULE option may be used to skip Module mode explicitly. It
is also implied by use of options not specified in the reduced
signature.
Config mode attempts to locate a configuration file provided by the
package to be found. A cache entry called <package>_DIR is created to
hold the directory containing the file. By default the command
searches for a package with the name <package>. If the NAMES option
is given the names following it are used instead of <package>. The
command searches for a file called "<name>Config.cmake" or
"<lower-case-name>-config.cmake" for each name specified. A
replacement set of possible configuration file names may be given
using the CONFIGS option. The search procedure is specified below.
Once found, the configuration file is read and processed by CMake.
Since the file is provided by the package it already knows the
location of package contents. The full path to the configuration file
is stored in the cmake variable <package>_CONFIG.
If the package configuration file cannot be found CMake will generate
an error describing the problem unless the QUIET argument is
specified. If REQUIRED is specified and the package is not found a
fatal error is generated and the configure step stops executing. If
<package>_DIR has been set to a directory not containing a
configuration file a fatal error is always generated because user
intervention is required.
When the "[major[.minor[.patch]]]" version argument is specified
Config mode will only find a version of the package that claims
compatibility with the requested version. If the EXACT option is
given only a version of the package claiming an exact match of the
requested version may be found. CMake does not establish any
convention for the meaning of version numbers. Package version
numbers are checked by "version" files provided by the packages
themselves. For a candidate package confguration file
"<config-file>.cmake" the corresponding version file is located next
to it and named either "<config-file>-version.cmake" or
"<config-file>Version.cmake". If no such version file is available
then the configuration file is assumed to not be compatible with any
requested version. When a version file is found it is loaded to check
the requested version number. The version file is loaded in a nested
scope in which the following variables have been defined:
PACKAGE_FIND_NAME = the <package> name
PACKAGE_FIND_VERSION = full requested version string
PACKAGE_FIND_VERSION_MAJOR = requested major version, if any
PACKAGE_FIND_VERSION_MINOR = requested minor version, if any
PACKAGE_FIND_VERSION_PATCH = requested patch version, if any
The version file checks whether it satisfies the requested version and
sets these variables:
PACKAGE_VERSION = package version (major[.minor[.patch]])
PACKAGE_VERSION_EXACT = true if version is exact match
PACKAGE_VERSION_COMPATIBLE = true if version is compatible
These variables are checked by the find_package command to determine
whether the configuration file provides an acceptable version. They
are not available after the find_package call returns. If the version
is acceptable the following variables are set:
<package>_VERSION = package version (major[.minor[.patch]])
<package>_VERSION_MAJOR = major from major[.minor[.patch]], if any
<package>_VERSION_MINOR = minor from major[.minor[.patch]], if any
<package>_VERSION_PATCH = patch from major[.minor[.patch]], if any
and the corresponding package configuration file is loaded. When
multiple package configuration files are available whose version files
claim compatibility with the version requested it is unspecified which
one is chosen. No attempt is made to choose a highest or closest
version number.
Config mode provides an elaborate interface and search procedure.
Much of the interface is provided for completeness and for use
internally by find-modules loaded by Module mode. Most user code
should simply call
find_package(<package> [major[.minor]] [EXACT] [REQUIRED|QUIET])
in order to find a package. Package maintainers providing CMake
package configuration files are encouraged to name and install them
such that the procedure outlined below will find them without
requiring use of additional options.
CMake constructs a set of possible installation prefixes for the
package. Under each prefix several directories are searched for a
configuration file. The tables below show the directories searched.
Each entry is meant for installation trees following Windows (W), UNIX
(U), or Apple (A) conventions.
<prefix>/ (W)
<prefix>/(cmake|CMake)/ (W)
<prefix>/(share|lib)/<name>*/ (U)
<prefix>/(share|lib)/<name>*/(cmake|CMake)/ (U)
On systems supporting OS X Frameworks and Application Bundles the
following directories are searched for frameworks or bundles
containing a configuration file:
<prefix>/<name>.framework/Resources/ (A)
<prefix>/<name>.framework/Resources/CMake/ (A)
<prefix>/<name>.framework/Versions/*/Resources/ (A)
<prefix>/<name>.framework/Versions/*/Resources/CMake/ (A)
<prefix>/<name>.app/Contents/Resources/ (A)
<prefix>/<name>.app/Contents/Resources/CMake/ (A)
In all cases the <name> is treated as case-insensitive and corresponds
to any of the names specified (<package> or names given by NAMES). If
PATH_SUFFIXES is specified the suffixes are appended to each (W) or
(U) directory entry one-by-one.
This set of directories is intended to work in cooperation with
projects that provide configuration files in their installation trees.
Directories above marked with (W) are intended for installations on
Windows where the prefix may point at the top of an application's
installation directory. Those marked with (U) are intended for
installations on UNIX platforms where the prefix is shared by multiple
packages. This is merely a convention, so all (W) and (U) directories
are still searched on all platforms. Directories marked with (A) are
intended for installations on Apple platforms. The cmake variables
CMAKE_FIND_FRAMEWORK and CMAKE_FIND_APPBUNDLE determine the order of
preference as specified below.
The set of installation prefixes is constructed using the following
steps. If NO_DEFAULT_PATH is specified steps 1-5 are skipped.
1. Search cmake specific environment variables. This can be skipped
if NO_CMAKE_ENVIRONMENT_PATH is passed.
CMAKE_PREFIX_PATH
CMAKE_FRAMEWORK_PATH
CMAKE_APPBUNDLE_PATH
2. Search cmake variables with the same names as the cmake specific
environment variables. These are intended to be used on the command
line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH is
passed.
CMAKE_PREFIX_PATH
CMAKE_FRAMEWORK_PATH
CMAKE_APPBUNDLE_PATH
3. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is passed. Path entries ending
in "/bin" or "/sbin" are automatically converted to their parent
directories.
PATH
4. Search project build trees recently configured in a CMake GUI.
This can be skipped if NO_CMAKE_BUILDS_PATH is passed. It is intended
for the case when a user is building multiple dependent projects one
after another.
5. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.
CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH
CMAKE_SYSTEM_APPBUNDLE_PATH
6. Search paths specified by the PATHS option.
On Darwin or systems supporting OS X Frameworks, the cmake variable
CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:
"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.
On Darwin or systems supporting OS X Application Bundles, the cmake
variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the
following:
"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.
The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories. This
effectively "re-roots" the entire search under given locations. By
default it is empty. It is especially useful when cross-compiling to
point to the root directory of the target environment and CMake will
search there too. By default at first the directories listed in
CMAKE_FIND_ROOT_PATH and then the non-rooted directories will be
searched. The default behavior can be adjusted by setting
CMAKE_FIND_ROOT_PATH_MODE_PACKAGE. This behavior can be manually
overridden on a per-call basis. By using CMAKE_FIND_ROOT_PATH_BOTH
the search order will be as described above. If
NO_CMAKE_FIND_ROOT_PATH is used then CMAKE_FIND_ROOT_PATH will not be
used. If ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted
directories will be searched.
The reason the paths listed in the call to the command are searched
last is that most users of CMake would expect things to be found first
in the locations specified by their environment. Projects may
override this behavior by simply calling the command twice:
find_package(<package> PATHS paths... NO_DEFAULT_PATH)
find_package(<package>)
Once one of these calls succeeds the result variable will be set and
stored in the cache so that neither call will search again.
find_path
Find the directory containing a file.
find_path(<VAR> name1 [path1 path2 ...])
This is the short-hand signature for the command that is sufficient in
many cases. It is the same as find_path(<VAR> name1 [PATHS path1
path2 ...])
find_path(
<VAR>
name | NAMES name1 [name2 ...]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)
This command is used to find a directory containing the named file. A
cache entry named by <VAR> is created to store the result of this
command. If the file in a directory is found the result is stored in
the variable and the search will not be repeated unless the variable
is cleared. If nothing is found, the result will be <VAR>-NOTFOUND,
and the search will be attempted again the next time find_path is
invoked with the same variable. The name of the file in a directory
that is searched for is specified by the names listed after the NAMES
argument. Additional search locations can be specified after the
PATHS argument. If ENV var is found in the PATHS section the
environment variable var will be read and converted from a system
environment variable to a cmake style list of paths. For example ENV
PATH would be a way to list the system path variable. The argument
after DOC will be used for the documentation string in the cache.
PATH_SUFFIXES can be used to give sub directories that will be
appended to the search paths.
If NO_DEFAULT_PATH is specified, then no additional paths are added to
the search. If NO_DEFAULT_PATH is not specified, the search process
is as follows:
1. Search cmake specific environment variables. This can be skipped
if NO_CMAKE_ENVIRONMENT_PATH is passed.
<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH
2. Search cmake variables with the same names as the cmake specific
environment variables. These are intended to be used on the command
line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH is
passed.
<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH
3. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.
PATH
INCLUDE
4. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.
<prefix>/include for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_INCLUDE_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH
5. Search the paths specified after PATHS or in the short-hand
version of the command.
On Darwin or systems supporting OS X Frameworks, the cmake variable
CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:
"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.
On Darwin or systems supporting OS X Application Bundles, the cmake
variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the
following:
"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.
The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories. This
effectively "re-roots" the entire search under given locations. By
default it is empty. It is especially useful when cross-compiling to
point to the root directory of the target environment and CMake will
search there too. By default at first the directories listed in
CMAKE_FIND_ROOT_PATH and then the non-rooted directories will be
searched. The default behavior can be adjusted by setting
CMAKE_FIND_ROOT_PATH_MODE_INCLUDE. This behavior can be manually
overridden on a per-call basis. By using CMAKE_FIND_ROOT_PATH_BOTH
the search order will be as described above. If
NO_CMAKE_FIND_ROOT_PATH is used then CMAKE_FIND_ROOT_PATH will not be
used. If ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted
directories will be searched.
The reason the paths listed in the call to the command are searched
last is that most users of CMake would expect things to be found first
in the locations specified by their environment. Projects may
override this behavior by simply calling the command twice:
find_path(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_path(<VAR> NAMES name)
Once one of these calls succeeds the result variable will be set and
stored in the cache so that neither call will search again.
When searching for frameworks, if the file is specified as A/b.h, then
the framework search will look for A.framework/Headers/b.h. If that
is found the path will be set to the path to the framework. CMake
will convert this to the correct -F option to include the file.
find_program
Find an executable program.
find_program(<VAR> name1 [path1 path2 ...])
This is the short-hand signature for the command that is sufficient in
many cases. It is the same as find_program(<VAR> name1 [PATHS path1
path2 ...])
find_program(
<VAR>
name | NAMES name1 [name2 ...]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)
This command is used to find a program. A cache entry named by <VAR>
is created to store the result of this command. If the program is
found the result is stored in the variable and the search will not be
repeated unless the variable is cleared. If nothing is found, the
result will be <VAR>-NOTFOUND, and the search will be attempted again
the next time find_program is invoked with the same variable. The
name of the program that is searched for is specified by the names
listed after the NAMES argument. Additional search locations can be
specified after the PATHS argument. If ENV var is found in the PATHS
section the environment variable var will be read and converted from a
system environment variable to a cmake style list of paths. For
example ENV PATH would be a way to list the system path variable. The
argument after DOC will be used for the documentation string in the
cache. PATH_SUFFIXES can be used to give sub directories that will be
appended to the search paths.
If NO_DEFAULT_PATH is specified, then no additional paths are added to
the search. If NO_DEFAULT_PATH is not specified, the search process
is as follows:
1. Search cmake specific environment variables. This can be skipped
if NO_CMAKE_ENVIRONMENT_PATH is passed.
<prefix>/[s]bin for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_PROGRAM_PATH
CMAKE_APPBUNDLE_PATH
2. Search cmake variables with the same names as the cmake specific
environment variables. These are intended to be used on the command
line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH is
passed.
<prefix>/[s]bin for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_PROGRAM_PATH
CMAKE_APPBUNDLE_PATH
3. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.
PATH
4. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.
<prefix>/[s]bin for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_PROGRAM_PATH
CMAKE_SYSTEM_APPBUNDLE_PATH
5. Search the paths specified after PATHS or in the short-hand
version of the command.
On Darwin or systems supporting OS X Frameworks, the cmake variable
CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:
"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.
On Darwin or systems supporting OS X Application Bundles, the cmake
variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the
following:
"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.
The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories. This
effectively "re-roots" the entire search under given locations. By
default it is empty. It is especially useful when cross-compiling to
point to the root directory of the target environment and CMake will
search there too. By default at first the directories listed in
CMAKE_FIND_ROOT_PATH and then the non-rooted directories will be
searched. The default behavior can be adjusted by setting
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM. This behavior can be manually
overridden on a per-call basis. By using CMAKE_FIND_ROOT_PATH_BOTH
the search order will be as described above. If
NO_CMAKE_FIND_ROOT_PATH is used then CMAKE_FIND_ROOT_PATH will not be
used. If ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted
directories will be searched.
The reason the paths listed in the call to the command are searched
last is that most users of CMake would expect things to be found first
in the locations specified by their environment. Projects may
override this behavior by simply calling the command twice:
find_program(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_program(<VAR> NAMES name)
Once one of these calls succeeds the result variable will be set and
stored in the cache so that neither call will search again.
fltk_wrap_ui
Create FLTK user interfaces Wrappers.
fltk_wrap_ui(resultingLibraryName source1
source2 ... sourceN )
Produce .h and .cxx files for all the .fl and .fld files listed. The
resulting .h and .cxx files will be added to a variable named
resultingLibraryName_FLTK_UI_SRCS which should be added to your
library.
foreach
Evaluate a group of commands for each value in a list.
foreach(loop_var arg1 arg2 ...)
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endforeach(loop_var)
foreach(loop_var RANGE total)
foreach(loop_var RANGE start stop [step])
All commands between foreach and the matching endforeach are recorded
without being invoked. Once the endforeach is evaluated, the recorded
list of commands is invoked once for each argument listed in the
original foreach command. Before each iteration of the loop
"${loop_var}" will be set as a variable with the current value in the
list.
Foreach can also iterate over a generated range of numbers. There are
three types of this iteration:
* When specifying single number, the range will have elements 0 to
"total".
* When specifying two numbers, the range will have elements from the
first number to the second number.
* The third optional number is the increment used to iterate from the
first number to the second number.
function
Start recording a function for later invocation as a command.
function(<name> [arg1 [arg2 [arg3 ...]]])
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endfunction(<name>)
Define a function named <name> that takes arguments named arg1 arg2
arg3 (...). Commands listed after function, but before the matching
endfunction, are not invoked until the function is invoked. When it
is invoked, the commands recorded in the function are first modified
by replacing formal parameters (${arg1}) with the arguments passed,
and then invoked as normal commands. In addition to referencing the
formal parameters you can reference the variable ARGC which will be
set to the number of arguments passed into the function as well as
ARGV0 ARGV1 ARGV2 ... which will have the actual values of the
arguments passed in. This facilitates creating functions with
optional arguments. Additionally ARGV holds the list of all arguments
given to the function and ARGN holds the list of argument pass the
last expected argument.
get_cmake_property
Get a property of the CMake instance.
get_cmake_property(VAR property)
Get a property from the CMake instance. The value of the property is
stored in the variable VAR. If the property is not found, CMake will
report an error. Some supported properties include: VARIABLES,
CACHE_VARIABLES, COMMANDS, and MACROS.
get_directory_property
Get a property of the directory.
get_directory_property(VAR [DIRECTORY dir] property)
Get a property from the Directory. The value of the property is
stored in the variable VAR. If the property is not found, CMake will
report an error. The properties include: VARIABLES, CACHE_VARIABLES,
COMMANDS, MACROS, INCLUDE_DIRECTORIES, LINK_DIRECTORIES, DEFINITIONS,
INCLUDE_REGULAR_EXPRESSION, LISTFILE_STACK, PARENT_DIRECTORY, and
DEFINITION varname. If the DIRECTORY argument is provided then the
property of the provided directory will be retrieved instead of the
current directory. You can only get properties of a directory during
or after it has been traversed by cmake.
get_filename_component
Get a specific component of a full filename.
get_filename_component(VarName FileName
PATH|ABSOLUTE|NAME|EXT|NAME_WE
[CACHE])
Set VarName to be the path (PATH), file name (NAME), file extension
(EXT), file name without extension (NAME_WE) of FileName, or the full
absolute (ABSOLUTE) file name without symlinks. Note that the path is
converted to Unix slashes format and has no trailing slashes. The
longest file extension is always considered. If the optional CACHE
argument is specified, the result variable is added to the cache.
get_filename_component(VarName FileName
PROGRAM [PROGRAM_ARGS ArgVar]
[CACHE])
The program in FileName will be found in the system search path or
left as a full path. If PROGRAM_ARGS is present with PROGRAM, then
any command-line arguments present in the FileName string are split
from the program name and stored in ArgVar. This is used to separate
a program name from its arguments in a command line string.
get_property
Get a property.
get_property(<variable>
<GLOBAL |
DIRECTORY [dir] |
TARGET <target> |
SOURCE <source> |
TEST <test> |
VARIABLE>
PROPERTY <name>
[SET | DEFINED | BRIEF_DOCS | FULL_DOCS])
Get one property from one object in a scope. The first argument
specifies the variable in which to store the result. The second
argument determines the scope from which to get the property. It must
be one of the following:
GLOBAL scope is unique and does not accept a name.
DIRECTORY scope defaults to the current directory but another
directory (already processed by CMake) may be named by full or
relative path.
TARGET scope must name one existing target.
SOURCE scope must name one source file.
TEST scope must name one existing test.
VARIABLE scope is unique and does not accept a name.
The required PROPERTY option is immediately followed by the name of
the property to get. If the property is not set an empty value is
returned. If the SET option is given the variable is set to a boolean
value indicating whether the property has been set.If the DEFINED
option is given the variable is set to a boolean value indicating
whether the property has been defined such as with define_property.
If BRIEF_DOCS or FULL_DOCS is given then the variable is set to a
string containing documentation for the requested property. If
documentation is requested for a property that has not been defined
NOTFOUND is returned.
get_source_file_property
Get a property for a source file.
get_source_file_property(VAR file property)
Get a property from a source file. The value of the property is
stored in the variable VAR. If the property is not found, VAR will be
set to "NOTFOUND". Use set_source_files_properties to set property
values. Source file properties usually control how the file is built.
One property that is always there is LOCATION
get_target_property
Get a property from a target.
get_target_property(VAR target property)
Get a property from a target. The value of the property is stored in
the variable VAR. If the property is not found, VAR will be set to
"NOTFOUND". Use set_target_properties to set property values.
Properties are usually used to control how a target is built.
The read-only property "<CONFIG>_LOCATION" provides the full path to
the file on disk that will be created for the target when building
under configuration <CONFIG> (in upper-case, such as
"DEBUG_LOCATION"). The read-only property "LOCATION" specifies the
full path to the file on disk that will be created for the target.
The path may contain a build-system-specific portion that is replaced
at build time with the configuration getting built (such as
"$(ConfigurationName)" in VS). This is very useful for executable
targets to get the path to the executable file for use in a custom
command.
The read-only property "TYPE" returns which type the specified target
has (EXECUTABLE, STATIC_LIBRARY, SHARED_LIBRARY, MODULE_LIBRARY,
UTILITY, INSTALL_FILES or INSTALL_PROGRAMS). This command can get
properties for any target so far created. The targets do not need to
be in the current CMakeLists.txt file.
get_test_property
Get a property of the test.
get_test_property(test VAR property)
Get a property from the Test. The value of the property is stored in
the variable VAR. If the property is not found, CMake will report an
error. For a list of standard properties you can type cmake
--help-property-list
if
Conditionally execute a group of commands.
if(expression)
# then section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
elseif(expression2)
# elseif section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
else(expression)
# else section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endif(expression)
Evaluates the given expression. If the result is true, the commands
in the THEN section are invoked. Otherwise, the commands in the else
section are invoked. The elseif and else sections are optional. You
may have multiple elseif clauses. Note that the same expression must
be given to if, and endif. Long expressions can be used and the order
or precedence is that the EXISTS, COMMAND, and DEFINED operators will
be evaluated first. Then any EQUAL, LESS, GREATER, STRLESS,
STRGREATER, STREQUAL, MATCHES will be evaluated. Then NOT operators
and finally AND, OR operators will be evaluated. Possible expressions
are:
if(variable)
True if the variable's value is not empty, 0, N, NO, OFF, FALSE,
NOTFOUND, or <variable>-NOTFOUND.
if(NOT variable)
True if the variable's value is empty, 0, N, NO, OFF, FALSE, NOTFOUND,
or <variable>-NOTFOUND.
if(variable1 AND variable2)
True if both variables would be considered true individually.
if(variable1 OR variable2)
True if either variable would be considered true individually.
if(COMMAND command-name)
True if the given name is a command, macro or function that can be
invoked.
if(POLICY policy-id)
True if the given name is an existing policy (of the form CMP<NNNN>).
if(EXISTS file-name)
if(EXISTS directory-name)
True if the named file or directory exists. Behavior is well-defined
only for full paths.
if(file1 IS_NEWER_THAN file2)
True if file1 is newer than file2 or if one of the two files doesn't
exist. Behavior is well-defined only for full paths.
if(IS_DIRECTORY directory-name)
True if the given name is a directory. Behavior is well-defined only
for full paths.
if(IS_ABSOLUTE path)
True if the given path is an absolute path.
if(variable MATCHES regex)
if(string MATCHES regex)
True if the given string or variable's value matches the given regular
expression.
if(variable LESS number)
if(string LESS number)
if(variable GREATER number)
if(string GREATER number)
if(variable EQUAL number)
if(string EQUAL number)
True if the given string or variable's value is a valid number and the
inequality or equality is true.
if(variable STRLESS string)
if(string STRLESS string)
if(variable STRGREATER string)
if(string STRGREATER string)
if(variable STREQUAL string)
if(string STREQUAL string)
True if the given string or variable's value is lexicographically less
(or greater, or equal) than the string on the right.
if(DEFINED variable)
True if the given variable is defined. It does not matter if the
variable is true or false just if it has been set.
include
Read CMake listfile code from the given file.
include(file1 [OPTIONAL] [RESULT_VARIABLE <VAR>])
include(module [OPTIONAL] [RESULT_VARIABLE <VAR>])
Reads CMake listfile code from the given file. Commands in the file
are processed immediately as if they were written in place of the
include command. If OPTIONAL is present, then no error is raised if
the file does not exist. If RESULT_VARIABLE is given the variable
will be set to the full filename which has been included or NOTFOUND
if it failed.
If a module is specified instead of a file, the file with name
<modulename>.cmake is searched in the CMAKE_MODULE_PATH.
include_directories
Add include directories to the build.
include_directories([AFTER|BEFORE] [SYSTEM] dir1 dir2 ...)
Add the given directories to those searched by the compiler for
include files. By default the directories are appended onto the
current list of directories. This default behavior can be changed by
setting CMAKE_include_directories_BEFORE to ON. By using BEFORE or
AFTER you can select between appending and prepending, independent
from the default. If the SYSTEM option is given the compiler will be
told that the directories are meant as system include directories on
some platforms.
include_external_msproject
Include an external Microsoft project file in a workspace.
include_external_msproject(projectname location
dep1 dep2 ...)
Includes an external Microsoft project in the generated workspace
file. Currently does nothing on UNIX.
include_regular_expression
Set the regular expression used for dependency checking.
include_regular_expression(regex_match [regex_complain])
Set the regular expressions used in dependency checking. Only files
matching regex_match will be traced as dependencies. Only files
matching regex_complain will generate warnings if they cannot be found
(standard header paths are not searched). The defaults are:
regex_match = "^.*$" (match everything)
regex_complain = "^$" (match empty string only)
install
Specify rules to run at install time.
This command generates installation rules for a project. Rules
specified by calls to this command within a source directory are
executed in order during installation. The order across directories
is not defined.
There are multiple signatures for this command. Some of them define
installation properties for files and targets. Properties common to
multiple signatures are covered here but they are valid only for
signatures that specify them.
DESTINATION arguments specify the directory on disk to which a file
will be installed. If a full path (with a leading slash or drive
letter) is given it is used directly. If a relative path is given it
is interpreted relative to the value of CMAKE_INSTALL_PREFIX.
PERMISSIONS arguments specify permissions for installed files. Valid
permissions are OWNER_READ, OWNER_WRITE, OWNER_EXECUTE, GROUP_READ,
GROUP_WRITE, GROUP_EXECUTE, WORLD_READ, WORLD_WRITE, WORLD_EXECUTE,
SETUID, and SETGID. Permissions that do not make sense on certain
platforms are ignored on those platforms.
The CONFIGURATIONS argument specifies a list of build configurations
for which the install rule applies (Debug, Release, etc.).
The COMPONENT argument specifies an installation component name with
which the install rule is associated, such as "runtime" or
"development". During component-specific installation only install
rules associated with the given component name will be executed.
During a full installation all components are installed.
The RENAME argument specifies a name for an installed file that may be
different from the original file. Renaming is allowed only when a
single file is installed by the command.
The OPTIONAL argument specifies that it is not an error if the file to
be installed does not exist.
The TARGETS signature:
install(TARGETS targets... [EXPORT <export-name>]
[[ARCHIVE|LIBRARY|RUNTIME|FRAMEWORK|BUNDLE|
PRIVATE_HEADER|PUBLIC_HEADER|RESOURCE]
[DESTINATION <dir>]
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>]
[OPTIONAL] [NAMELINK_ONLY|NAMELINK_SKIP]
] [...])
The TARGETS form specifies rules for installing targets from a
project. There are five kinds of target files that may be installed:
ARCHIVE, LIBRARY, RUNTIME, FRAMEWORK, and BUNDLE. Executables are
treated as RUNTIME targets, except that those marked with the
MACOSX_BUNDLE property are treated as BUNDLE targets on OS X. Static
libraries are always treated as ARCHIVE targets. Module libraries are
always treated as LIBRARY targets. For non-DLL platforms shared
libraries are treated as LIBRARY targets, except that those marked
with the FRAMEWORK property are treated as FRAMEWORK targets on OS X.
For DLL platforms the DLL part of a shared library is treated as a
RUNTIME target and the corresponding import library is treated as an
ARCHIVE target. All Windows-based systems including Cygwin are DLL
platforms. The ARCHIVE, LIBRARY, RUNTIME, and FRAMEWORK arguments
change the type of target to which the subsequent properties apply.
If none is given the installation properties apply to all target
types. If only one is given then only targets of that type will be
installed (which can be used to install just a DLL or just an import
library).
The PRIVATE_HEADER, PUBLIC_HEADER, and RESOURCE arguments cause
subsequent properties to be applied to installing a FRAMEWORK shared
library target's associated files on non-Apple platforms. Rules
defined by these arguments are ignored on Apple platforms because the
associated files are installed into the appropriate locations inside
the framework folder. See documentation of the PRIVATE_HEADER,
PUBLIC_HEADER, and RESOURCE target properties for details.
Either NAMELINK_ONLY or NAMELINK_SKIP may be specified as a LIBRARY
option. On some platforms a versioned shared library has a symbolic
link such as
lib<name>.so -> lib<name>.so.1
where "lib<name>.so.1" is the soname of the library and "lib<name>.so"
is a "namelink" allowing linkers to find the library when given
"-l<name>". The NAMELINK_ONLY option causes installation of only the
namelink when a library target is installed. The NAMELINK_SKIP option
causes installation of library files other than the namelink when a
library target is installed. When neither option is given both
portions are installed. On platforms where versioned shared libraries
do not have namelinks or when a library is not versioned the
NAMELINK_SKIP option installs the library and the NAMELINK_ONLY option
installs nothing. See the VERSION and SOVERSION target properties for
details on creating versioned shared libraries.
One or more groups of properties may be specified in a single call to
the TARGETS form of this command. A target may be installed more than
once to different locations. Consider hypothetical targets "myExe",
"mySharedLib", and "myStaticLib". The code
install(TARGETS myExe mySharedLib myStaticLib
RUNTIME DESTINATION bin
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib/static)
install(TARGETS mySharedLib DESTINATION /some/full/path)
will install myExe to <prefix>/bin and myStaticLib to
<prefix>/lib/static. On non-DLL platforms mySharedLib will be
installed to <prefix>/lib and /some/full/path. On DLL platforms the
mySharedLib DLL will be installed to <prefix>/bin and /some/full/path
and its import library will be installed to <prefix>/lib/static and
/some/full/path. On non-DLL platforms mySharedLib will be installed
to <prefix>/lib and /some/full/path.
The EXPORT option associates the installed target files with an export
called <export-name>. It must appear before any RUNTIME, LIBRARY, or
ARCHIVE options. See documentation of the install(EXPORT ...)
signature below for details.
Installing a target with EXCLUDE_FROM_ALL set to true has undefined
behavior.
The FILES signature:
install(FILES files... DESTINATION <dir>
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>]
[RENAME <name>] [OPTIONAL])
The FILES form specifies rules for installing files for a project.
File names given as relative paths are interpreted with respect to the
current source directory. Files installed by this form are by default
given permissions OWNER_WRITE, OWNER_READ, GROUP_READ, and WORLD_READ
if no PERMISSIONS argument is given.
The PROGRAMS signature:
install(PROGRAMS files... DESTINATION <dir>
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>]
[RENAME <name>] [OPTIONAL])
The PROGRAMS form is identical to the FILES form except that the
default permissions for the installed file also include OWNER_EXECUTE,
GROUP_EXECUTE, and WORLD_EXECUTE. This form is intended to install
programs that are not targets, such as shell scripts. Use the TARGETS
form to install targets built within the project.
The DIRECTORY signature:
install(DIRECTORY dirs... DESTINATION <dir>
[FILE_PERMISSIONS permissions...]
[DIRECTORY_PERMISSIONS permissions...]
[USE_SOURCE_PERMISSIONS]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>] [FILES_MATCHING]
[[PATTERN <pattern> | REGEX <regex>]
[EXCLUDE] [PERMISSIONS permissions...]] [...])
The DIRECTORY form installs contents of one or more directories to a
given destination. The directory structure is copied verbatim to the
destination. The last component of each directory name is appended to
the destination directory but a trailing slash may be used to avoid
this because it leaves the last component empty. Directory names
given as relative paths are interpreted with respect to the current
source directory. If no input directory names are given the
destination directory will be created but nothing will be installed
into it. The FILE_PERMISSIONS and DIRECTORY_PERMISSIONS options
specify permissions given to files and directories in the destination.
If USE_SOURCE_PERMISSIONS is specified and FILE_PERMISSIONS is not,
file permissions will be copied from the source directory structure.
If no permissions are specified files will be given the default
permissions specified in the FILES form of the command, and the
directories will be given the default permissions specified in the
PROGRAMS form of the command.
Installation of directories may be controlled with fine granularity
using the PATTERN or REGEX options. These "match" options specify a
globbing pattern or regular expression to match directories or files
encountered within input directories. They may be used to apply
certain options (see below) to a subset of the files and directories
encountered. The full path to each input file or directory (with
forward slashes) is matched against the expression. A PATTERN will
match only complete file names: the portion of the full path matching
the pattern must occur at the end of the file name and be preceded by
a slash. A REGEX will match any portion of the full path but it may
use '/' and '$' to simulate the PATTERN behavior. By default all
files and directories are installed whether or not they are matched.
The FILES_MATCHING option may be given before the first match option
to disable installation of files (but not directories) not matched by
any expression. For example, the code
install(DIRECTORY src/ DESTINATION include/myproj
FILES_MATCHING PATTERN "*.h")
will extract and install header files from a source tree.
Some options may follow a PATTERN or REGEX expression and are applied
only to files or directories matching them. The EXCLUDE option will
skip the matched file or directory. The PERMISSIONS option overrides
the permissions setting for the matched file or directory. For
example the code
install(DIRECTORY icons scripts/ DESTINATION share/myproj
PATTERN "CVS" EXCLUDE
PATTERN "scripts/*"
PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ
GROUP_EXECUTE GROUP_READ)
will install the icons directory to share/myproj/icons and the scripts
directory to share/myproj. The icons will get default file
permissions, the scripts will be given specific permissions, and any
CVS directories will be excluded.
The SCRIPT and CODE signature:
install([[SCRIPT <file>] [CODE <code>]] [...])
The SCRIPT form will invoke the given CMake script files during
installation. If the script file name is a relative path it will be
interpreted with respect to the current source directory. The CODE
form will invoke the given CMake code during installation. Code is
specified as a single argument inside a double-quoted string. For
example, the code
install(CODE "MESSAGE(\"Sample install message.\")")
will print a message during installation.
The EXPORT signature:
install(EXPORT <export-name> DESTINATION <dir>
[NAMESPACE <namespace>] [FILE <name>.cmake]
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>])
The EXPORT form generates and installs a CMake file containing code to
import targets from the installation tree into another project.
Target installations are associated with the export <export-name>
using the EXPORT option of the install(TARGETS ...) signature
documented above. The NAMESPACE option will prepend <namespace> to
the target names as they are written to the import file. By default
the generated file will be called <export-name>.cmake but the FILE
option may be used to specify a different name. The value given to
the FILE option must be a file name with the ".cmake" extension. If a
CONFIGURATIONS option is given then the file will only be installed
when one of the named configurations is installed. Additionally, the
generated import file will reference only the matching target
configurations. If a COMPONENT option is specified that does not
match that given to the targets associated with <export-name> the
behavior is undefined. If a library target is included in the export
but a target to which it links is not included the behavior is
unspecified.
The EXPORT form is useful to help outside projects use targets built
and installed by the current project. For example, the code
install(TARGETS myexe EXPORT myproj DESTINATION bin)
install(EXPORT myproj NAMESPACE mp_ DESTINATION lib/myproj)
will install the executable myexe to <prefix>/bin and code to import
it in the file "<prefix>/lib/myproj/myproj.cmake". An outside project
may load this file with the include command and reference the myexe
executable from the installation tree using the imported target name
mp_myexe as if the target were built in its own tree.
NOTE: This command supercedes the INSTALL_TARGETS command and the
target properties PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT. It also
replaces the FILES forms of the INSTALL_FILES and INSTALL_PROGRAMS
commands. The processing order of these install rules relative to
those generated by INSTALL_TARGETS, INSTALL_FILES, and
INSTALL_PROGRAMS commands is not defined.
link_directories
Specify directories in which the linker will look for libraries.
link_directories(directory1 directory2 ...)
Specify the paths in which the linker should search for libraries.
The command will apply only to targets created after it is called.
list
List operations.
list(LENGTH <list> <output variable>)
list(GET <list> <element index> [<element index> ...] <output variable>)
list(APPEND <list> <element> [<element> ...])
list(FIND <list> <value> <output variable>)
list(INSERT <list> <element_index> <element> [<element> ...])
list(REMOVE_ITEM <list> <value> [<value> ...])
list(REMOVE_AT <list> <index> [<index> ...])
list(REMOVE_DUPLICATES <list>)
list(REVERSE <list>)
list(SORT <list>)
LENGTH will return a given list's length.
GET will return list of elements specified by indices from the list.
APPEND will append elements to the list.
FIND will return the index of the element specified in the list or -1
if it wasn't found.
INSERT will insert elements to the list to the specified location.
REMOVE_AT and REMOVE_ITEM will remove items from the list. The
difference is that REMOVE_ITEM will remove the given items, while
REMOVE_AT will remove the items at the given indices.
REMOVE_DUPLICATES will remove duplicated items in the list.
REVERSE reverses the contents of the list in-place.
SORT sorts the list in-place alphabetically.
NOTES: A list in cmake is a ; separated group of strings. To create a
list the set command can be used. For example, set(var a b c d e)
creates a list with a;b;c;d;e, and set(var "a b c d e") creates a
string or a list with one item in it.
When specifying index values, if <element index> is 0 or greater, it
is indexed from the beginning of the list, with 0 representing the
first list element. If <element index> is -1 or lesser, it is indexed
from the end of the list, with -1 representing the last list element.
Be careful when counting with negative indices: they do not start from
0. -0 is equivalent to 0, the first list element.
load_cache
Load in the values from another project's CMake cache.
load_cache(pathToCacheFile READ_WITH_PREFIX
prefix entry1...)
Read the cache and store the requested entries in variables with their
name prefixed with the given prefix. This only reads the values, and
does not create entries in the local project's cache.
load_cache(pathToCacheFile [EXCLUDE entry1...]
[INCLUDE_INTERNALS entry1...])
Load in the values from another cache and store them in the local
project's cache as internal entries. This is useful for a project
that depends on another project built in a different tree. EXCLUDE
option can be used to provide a list of entries to be excluded.
INCLUDE_INTERNALS can be used to provide a list of internal entries to
be included. Normally, no internal entries are brought in. Use of
this form of the command is strongly discouraged, but it is provided
for backward compatibility.
load_command
Load a command into a running CMake.
load_command(COMMAND_NAME <loc1> [loc2 ...])
The given locations are searched for a library whose name is
cmCOMMAND_NAME. If found, it is loaded as a module and the command is
added to the set of available CMake commands. Usually, TRY_COMPILE is
used before this command to compile the module. If the command is
successfully loaded a variable named
CMAKE_LOADED_COMMAND_<COMMAND_NAME>
will be set to the full path of the module that was loaded. Otherwise
the variable will not be set.
macro
Start recording a macro for later invocation as a command.
macro(<name> [arg1 [arg2 [arg3 ...]]])
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endmacro(<name>)
Define a macro named <name> that takes arguments named arg1 arg2 arg3
(...). Commands listed after macro, but before the matching endmacro,
are not invoked until the macro is invoked. When it is invoked, the
commands recorded in the macro are first modified by replacing formal
parameters (${arg1}) with the arguments passed, and then invoked as
normal commands. In addition to referencing the formal parameters you
can reference the values ${ARGC} which will be set to the number of
arguments passed into the function as well as ${ARGV0} ${ARGV1}
${ARGV2} ... which will have the actual values of the arguments
passed in. This facilitates creating macros with optional arguments.
Additionally ${ARGV} holds the list of all arguments given to the
macro and ${ARGN} holds the list of argument pass the last expected
argument. Note that the parameters to a macro and values such as ARGN
are not variables in the usual CMake sense. They are string
replacements much like the c preprocessor would do with a macro. If
you want true CMake variables you should look at the function command.
mark_as_advanced
Mark cmake cached variables as advanced.
mark_as_advanced([CLEAR|FORCE] VAR VAR2 VAR...)
Mark the named cached variables as advanced. An advanced variable
will not be displayed in any of the cmake GUIs unless the show
advanced option is on. If CLEAR is the first argument advanced
variables are changed back to unadvanced. If FORCE is the first
argument, then the variable is made advanced. If neither FORCE nor
CLEAR is specified, new values will be marked as advanced, but if the
variable already has an advanced/non-advanced state, it will not be
changed.
It does nothing in script mode.
math
Mathematical expressions.
math(EXPR <output variable> <math expression>)
EXPR evaluates mathematical expression and return result in the output
variable. Example mathematical expression is '5 * ( 10 + 13 )'.
Supported operators are + - * / % | & ^ ~ << >> * / %. They have the
same meaning as they do in c code.
message
Display a message to the user.
message([SEND_ERROR | STATUS | FATAL_ERROR]
"message to display" ...)
By default the message is displayed in a pop up window (CMakeSetup),
or in the stdout of cmake, or the error section of ccmake. If the
first argument is SEND_ERROR then an error is raised, and the generate
phase will be skipped. If the first argument is FATAL_ERROR, all
processing is halted. If the first argument is STATUS then the
message is displayed in the progress line for the GUI, or with a -- in
the command line cmake.
option
Provides an option that the user can optionally select.
option(<option_variable> "help string describing option"
[initial value])
Provide an option for the user to select as ON or OFF. If no initial
value is provided, OFF is used.
output_required_files
Output a list of required source files for a specified source file.
output_required_files(srcfile outputfile)
Outputs a list of all the source files that are required by the
specified srcfile. This list is written into outputfile. This is
similar to writing out the dependencies for srcfile except that it
jumps from .h files into .cxx, .c and .cpp files if possible.
project
Set a name for the entire project.
project(projectname [CXX] [C] [Java])
Sets the name of the project. This creates the variables
projectname_BINARY_DIR and projectname_SOURCE_DIR. Optionally you can
specify which languages your project supports. By default all
languages are supported. If you do not have a C++ compiler, but want
to build a c program with cmake, then use this option.
qt_wrap_cpp
Create Qt Wrappers.
qt_wrap_cpp(resultingLibraryName DestName
SourceLists ...)
Produce moc files for all the .h files listed in the SourceLists. The
moc files will be added to the library using the DestName source list.
qt_wrap_ui
Create Qt user interfaces Wrappers.
qt_wrap_ui(resultingLibraryName HeadersDestName
SourcesDestName SourceLists ...)
Produce .h and .cxx files for all the .ui files listed in the
SourceLists. The .h files will be added to the library using the
HeadersDestNamesource list. The .cxx files will be added to the
library using the SourcesDestNamesource list.
remove_definitions
Removes -D define flags added by add_definitions.
remove_definitions(-DFOO -DBAR ...)
Removes flags (added by add_definitions) from the compiler command
line for sources in the current directory and below.
return
Return from a directory or function.
return()
Returns from a directory or function. When this command is
encountered, it caused process of the current function or directory to
stop and control is return to the caller of the function, or the
parent directory if any. Note that a macro is not a function and does
not handle return like a function does.
separate_arguments
Split space separated arguments into a semi-colon separated list.
separate_arguments(VARIABLE)
Convert the value of VARIABLE to a semi-colon separated list. All
spaces are replaced with ';'. This helps with generating command
lines.
set
Set a CMAKE variable to a given value.
set(<variable> <value> [[CACHE <type> <docstring> [FORCE]] | PARENT_SCOPE])
Within CMake sets <variable> to the value <value>. <value> is
expanded before <variable> is set to it. If CACHE is present, then
the <variable> is put in the cache. <type> and <docstring> are then
required. <type> is used by the CMake GUI to choose a widget with
which the user sets a value. The value for <type> may be one of
FILEPATH = File chooser dialog.
PATH = Directory chooser dialog.
STRING = Arbitrary string.
BOOL = Boolean ON/OFF checkbox.
INTERNAL = No GUI entry (used for persistent variables).
If <type> is INTERNAL, then the <value> is always written into the
cache, replacing any values existing in the cache. If it is not a
cache variable, then this always writes into the current makefile.
The FORCE option will overwrite the cache value removing any changes
by the user.
If PARENT_SCOPE is present, the variable will be set in the scope
above the current scope. Each new directory or function creates a new
scope. This command will set the value of a variable into the parent
directory or calling function (whichever is applicable to the case at
hand) If VALUE is not specified then the variable is removed from the
parent scope.
set(<variable> <value1> ... <valueN>)
In this case <variable> is set to a semicolon separated list of
values.
<variable> can be an environment variable such as:
set( ENV{PATH} /home/martink )
in which case the environment variable will be set.
set_directory_properties
Set a property of the directory.
set_directory_properties(PROPERTIES prop1 value1 prop2 value2)
Set a property for the current directory and subdirectories. If the
property is not found, CMake will report an error. The properties
include: INCLUDE_DIRECTORIES, LINK_DIRECTORIES,
INCLUDE_REGULAR_EXPRESSION, and ADDITIONAL_MAKE_CLEAN_FILES.
ADDITIONAL_MAKE_CLEAN_FILES is a list of files that will be cleaned as
a part of "make clean" stage.
set_property
Set a named property in a given scope.
set_property(<GLOBAL |
DIRECTORY [dir] |
TARGET [target1 [target2 ...]] |
SOURCE [src1 [src2 ...]] |
TEST [test1 [test2 ...]]>
[APPEND]
PROPERTY <name> [value1 [value2 ...]])
Set one property on zero or more objects of a scope. The first
argument determines the scope in which the property is set. It must
be one of the following:
GLOBAL scope is unique and does not accept a name.
DIRECTORY scope defaults to the current directory but another
directory (already processed by CMake) may be named by full or
relative path.
TARGET scope may name zero or more existing targets.
SOURCE scope may name zero or more source files.
TEST scope may name zero or more existing tests.
The required PROPERTY option is immediately followed by the name of
the property to set. Remaining arguments are used to compose the
property value in the form of a semicolon-separated list. If the
APPEND option is given the list is appended to any existing property
value.
set_source_files_properties
Source files can have properties that affect how they are built.
set_source_files_properties(file1 file2 ...
PROPERTIES prop1 value1
prop2 value2 ...)
Set properties on a file. The syntax for the command is to list all
the files you want to change, and then provide the values you want to
set next. You can make up your own properties as well. The following
are used by CMake. The ABSTRACT flag (boolean) is used by some class
wrapping commands. If WRAP_EXCLUDE (boolean) is true then many
wrapping commands will ignore this file. If GENERATED (boolean) is
true then it is not an error if this source file does not exist when
it is added to a target. Obviously, it must be created (presumably by
a custom command) before the target is built. If the HEADER_FILE_ONLY
(boolean) property is true then the file is not compiled. This is
useful if you want to add extra non build files to an IDE.
OBJECT_DEPENDS (string) adds dependencies to the object file.
COMPILE_FLAGS (string) is passed to the compiler as additional command
line arguments when the source file is compiled. LANGUAGE (string)
CXX|C will change the default compiler used to compile the source
file. The languages used need to be enabled in the PROJECT command.
If SYMBOLIC (boolean) is set to true the build system will be informed
that the source file is not actually created on disk but instead used
as a symbolic name for a build rule.
set_target_properties
Targets can have properties that affect how they are built.
set_target_properties(target1 target2 ...
PROPERTIES prop1 value1
prop2 value2 ...)
Set properties on a target. The syntax for the command is to list all
the files you want to change, and then provide the values you want to
set next. You can use any prop value pair you want and extract it
later with the GET_TARGET_PROPERTY command.
Properties that affect the name of a target's output file are as
follows. The PREFIX and SUFFIX properties override the default target
name prefix (such as "lib") and suffix (such as ".so"). IMPORT_PREFIX
and IMPORT_SUFFIX are the equivalent properties for the import library
corresponding to a DLL (for SHARED library targets). OUTPUT_NAME sets
the real name of a target when it is built and can be used to help
create two targets of the same name even though CMake requires unique
logical target names. There is also a <CONFIG>_OUTPUT_NAME that can
set the output name on a per-configuration basis. <CONFIG>_POSTFIX
sets a postfix for the real name of the target when it is built under
the configuration named by <CONFIG> (in upper-case, such as
"DEBUG_POSTFIX"). The value of this property is initialized when the
target is created to the value of the variable CMAKE_<CONFIG>_POSTFIX
(except for executable targets because earlier CMake versions which
did not use this variable for executables).
The LINK_FLAGS property can be used to add extra flags to the link
step of a target. LINK_FLAGS_<CONFIG> will add to the configuration
<CONFIG>, for example, DEBUG, RELEASE, MINSIZEREL, RELWITHDEBINFO.
DEFINE_SYMBOL sets the name of the preprocessor symbol defined when
compiling sources in a shared library. If not set here then it is set
to target_EXPORTS by default (with some substitutions if the target is
not a valid C identifier). This is useful for headers to know whether
they are being included from inside their library our outside to
properly setup dllexport/dllimport decorations. The COMPILE_FLAGS
property sets additional compiler flags used to build sources within
the target. It may also be used to pass additional preprocessor
definitions.
The LINKER_LANGUAGE property is used to change the tool used to link
an executable or shared library. The default is set the language to
match the files in the library. CXX and C are common values for this
property.
For shared libraries VERSION and SOVERSION can be used to specify the
build version and api version respectively. When building or
installing appropriate symlinks are created if the platform supports
symlinks and the linker supports so-names. If only one of both is
specified the missing is assumed to have the same version number. For
executables VERSION can be used to specify the build version. When
building or installing appropriate symlinks are created if the
platform supports symlinks. For shared libraries and executables on
Windows the VERSION attribute is parsed to extract a "major.minor"
version number. These numbers are used as the image version of the
binary.
There are a few properties used to specify RPATH rules. INSTALL_RPATH
is a semicolon-separated list specifying the rpath to use in installed
targets (for platforms that support it). INSTALL_RPATH_USE_LINK_PATH
is a boolean that if set to true will append directories in the linker
search path and outside the project to the INSTALL_RPATH.
SKIP_BUILD_RPATH is a boolean specifying whether to skip automatic
generation of an rpath allowing the target to run from the build tree.
BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link the
target in the build tree with the INSTALL_RPATH. This takes
precedence over SKIP_BUILD_RPATH and avoids the need for relinking
before installation. INSTALL_NAME_DIR is a string specifying the
directory portion of the "install_name" field of shared libraries on
Mac OSX to use in the installed targets. When the target is created
the values of the variables CMAKE_INSTALL_RPATH,
CMAKE_INSTALL_RPATH_USE_LINK_PATH, CMAKE_SKIP_BUILD_RPATH,
CMAKE_BUILD_WITH_INSTALL_RPATH, and CMAKE_INSTALL_NAME_DIR are used to
initialize these properties.
PROJECT_LABEL can be used to change the name of the target in an IDE
like visual studio. VS_KEYWORD can be set to change the visual studio
keyword, for example QT integration works better if this is set to
Qt4VSv1.0.
When a library is built CMake by default generates code to remove any
existing library using all possible names. This is needed to support
libraries that switch between STATIC and SHARED by a user option.
However when using OUTPUT_NAME to build a static and shared library of
the same name using different logical target names the two targets
will remove each other's files. This can be prevented by setting the
CLEAN_DIRECT_OUTPUT property to 1.
The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the old
way to specify CMake scripts to run before and after installing a
target. They are used only when the old INSTALL_TARGETS command is
used to install the target. Use the INSTALL command instead.
The EXCLUDE_FROM_DEFAULT_BUILD property is used by the visual studio
generators. If it is set to 1 the target will not be part of the
default build when you select "Build Solution".
set_tests_properties
Set a property of the tests.
set_tests_properties(test1 [test2...] PROPERTIES prop1 value1 prop2 value2)
Set a property for the tests. If the property is not found, CMake
will report an error. The properties include:
WILL_FAIL: If set to true, this will invert the pass/fail flag of the
test.
PASS_REGULAR_EXPRESSION: If set, the test output will be checked
against the specified regular expressions and at least one of the
regular expressions has to match, otherwise the test will fail.
Example: PASS_REGULAR_EXPRESSION "TestPassed;All ok"
FAIL_REGULAR_EXPRESSION: If set, if the output will match to one of
specified regular expressions, the test will fail.
Example: PASS_REGULAR_EXPRESSION "[^a-z]Error;ERROR;Failed"
Both PASS_REGULAR_EXPRESSION and FAIL_REGULAR_EXPRESSION expect a list
of regular expressions.
site_name
Set the given variable to the name of the computer.
site_name(variable)
source_group
Define a grouping for sources in the makefile.
source_group(name [REGULAR_EXPRESSION regex] [FILES src1 src2 ...])
Defines a group into which sources will be placed in project files.
This is mainly used to setup file tabs in Visual Studio. Any file
whose name is listed or matches the regular expression will be placed
in this group. If a file matches multiple groups, the LAST group that
explicitly lists the file will be favored, if any. If no group
explicitly lists the file, the LAST group whose regular expression
matches the file will be favored.
The name of the group may contain backslashes to specify subgroups:
source_group(outer\\inner ...)
For backwards compatibility, this command is also supports the format:
source_group(name regex)
string
String operations.
string(REGEX MATCH <regular_expression>
<output variable> <input> [<input>...])
string(REGEX MATCHALL <regular_expression>
<output variable> <input> [<input>...])
string(REGEX REPLACE <regular_expression>
<replace_expression> <output variable>
<input> [<input>...])
string(REPLACE <match_string>
<replace_string> <output variable>
<input> [<input>...])
string(COMPARE EQUAL <string1> <string2> <output variable>)
string(COMPARE NOTEQUAL <string1> <string2> <output variable>)
string(COMPARE LESS <string1> <string2> <output variable>)
string(COMPARE GREATER <string1> <string2> <output variable>)
string(ASCII <number> [<number> ...] <output variable>)
string(CONFIGURE <string1> <output variable>
[@ONLY] [ESCAPE_QUOTES])
string(TOUPPER <string1> <output variable>)
string(TOLOWER <string1> <output variable>)
string(LENGTH <string> <output variable>)
string(SUBSTRING <string> <begin> <length> <output variable>)
string(STRIP <string> <output variable>)
string(RANDOM [LENGTH <length>] [ALPHABET <alphabet>]
<output variable>)
REGEX MATCH will match the regular expression once and store the match
in the output variable.
REGEX MATCHALL will match the regular expression as many times as
possible and store the matches in the output variable as a list.
REGEX REPLACE will match the regular expression as many times as
possible and substitute the replacement expression for the match in
the output. The replace expression may refer to paren-delimited
subexpressions of the match using \1, \2, ..., \9. Note that two
backslashes (\\1) are required in CMake code to get a backslash
through argument parsing.
REPLACE will replace all occurrences of match_string in the input with
replace_string and store the result in the output.
COMPARE EQUAL/NOTEQUAL/LESS/GREATER will compare the strings and store
true or false in the output variable.
ASCII will convert all numbers into corresponding ASCII characters.
CONFIGURE will transform a string like CONFIGURE_FILE transforms a
file.
TOUPPER/TOLOWER will convert string to upper/lower characters.
LENGTH will return a given string's length.
SUBSTRING will return a substring of a given string.
STRIP will return a substring of a given string with leading and
trailing spaces removed.
RANDOM will return a random string of given length consisting of
characters from the given alphabet. Default length is 5 characters
and default alphabet is all numbers and upper and lower case letters.
The following characters have special meaning in regular expressions:
^ Matches at beginning of a line
$ Matches at end of a line
. Matches any single character
[ ] Matches any character(s) inside the brackets
[^ ] Matches any character(s) not inside the brackets
- Matches any character in range on either side of a dash
* Matches preceding pattern zero or more times
+ Matches preceding pattern one or more times
? Matches preceding pattern zero or once only
| Matches a pattern on either side of the |
() Saves a matched subexpression, which can be referenced in the REGEX REPLACE operation. Additionally it is saved in the special CMake variables CMAKE_MATCH_(0..9).
target_link_libraries
Link a target to given libraries.
target_link_libraries(target library1
<debug | optimized | general> library2
...)
Specify a list of libraries to be linked into the specified target.
The debug and optimized strings may be used to indicate that the next
library listed is to be used only for that specific type of build.
general indicates it is used for all build types and is assumed if not
specified.
If any library name matches that of a target in the current project a
dependency will automatically be added in the build system to make
sure the library being linked is up-to-date before the target links.
try_compile
Try compiling some code.
try_compile(RESULT_VAR bindir srcdir
projectName <targetname> [CMAKE_FLAGS <Flags>]
[OUTPUT_VARIABLE var])
Try compiling a program. In this form, srcdir should contain a
complete CMake project with a CMakeLists.txt file and all sources.
The bindir and srcdir will not be deleted after this command is run.
If <target name> is specified then build just that target otherwise
the all or ALL_BUILD target is built.
try_compile(RESULT_VAR bindir srcfile
[CMAKE_FLAGS <Flags>]
[COMPILE_DEFINITIONS <flags> ...]
[OUTPUT_VARIABLE var]
[COPY_FILE <filename> )
Try compiling a srcfile. In this case, the user need only supply a
source file. CMake will create the appropriate CMakeLists.txt file to
build the source. If COPY_FILE is used, the compiled file will be
copied to the given file.
In this version all files in bindir/CMakeFiles/CMakeTmp, will be
cleaned automatically, for debugging a --debug-trycompile can be
passed to cmake to avoid the clean. Some extra flags that can be
included are, INCLUDE_DIRECTORIES, LINK_DIRECTORIES, and
LINK_LIBRARIES. COMPILE_DEFINITIONS are -Ddefinition that will be
passed to the compile line. try_compile creates a CMakeList.txt file
on the fly that looks like this:
add_definitions( <expanded COMPILE_DEFINITIONS from calling cmake>)
include_directories(${INCLUDE_DIRECTORIES})
link_directories(${LINK_DIRECTORIES})
add_executable(cmTryCompileExec sources)
target_link_libraries(cmTryCompileExec ${LINK_LIBRARIES})
In both versions of the command, if OUTPUT_VARIABLE is specified, then
the output from the build process is stored in the given variable.
Return the success or failure in RESULT_VAR. CMAKE_FLAGS can be used
to pass -DVAR:TYPE=VALUE flags to the cmake that is run during the
build.
try_run
Try compiling and then running some code.
try_run(RUN_RESULT_VAR COMPILE_RESULT_VAR
bindir srcfile [CMAKE_FLAGS <Flags>]
[COMPILE_DEFINITIONS <flags>]
[COMPILE_OUTPUT_VARIABLE comp]
[RUN_OUTPUT_VARIABLE run]
[OUTPUT_VARIABLE var]
[ARGS <arg1> <arg2>...])
Try compiling a srcfile. Return TRUE or FALSE for success or failure
in COMPILE_RESULT_VAR. Then if the compile succeeded, run the
executable and return its exit code in RUN_RESULT_VAR. If the
executable was built, but failed to run, then RUN_RESULT_VAR will be
set to FAILED_TO_RUN. COMPILE_OUTPUT_VARIABLE specifies the variable
where the output from the compile step goes. RUN_OUTPUT_VARIABLE
specifies the variable where the output from the running executable
goes.
For compatibility reasons OUTPUT_VARIABLE is still supported, which
gives you the output from the compile and run step combined.
Cross compiling issues
When cross compiling, the executable compiled in the first step
usually cannot be run on the build host. try_run() checks the
CMAKE_CROSSCOMPILING variable to detect whether CMake is in
crosscompiling mode. If that's the case, it will still try to compile
the executable, but it will not try to run the executable. Instead it
will create cache variables which must be filled by the user or by
presetting them in some CMake script file to the values the executable
would have produced if it would have been run on its actual target
platform. These variables are RUN_RESULT_VAR (explanation see above)
and if RUN_OUTPUT_VARIABLE (or OUTPUT_VARIABLE) was used, an
additional cache variable
RUN_RESULT_VAR__COMPILE_RESULT_VAR__TRYRUN_OUTPUT.This is intended to
hold stdout and stderr from the executable.
In order to make cross compiling your project easier, use try_run only
if really required. If you use try_run, use RUN_OUTPUT_VARIABLE (or
OUTPUT_VARIABLE) only if really required. Using them will require
that when crosscompiling, the cache variables will have to be set
manually to the output of the executable. You can also "guard" the
calls to try_run with if(CMAKE_CROSSCOMPILING) and provide an
easy-to-preset alternative for this case.
variable_watch
Watch the CMake variable for change.
variable_watch(<variable name> [<command to execute>])
If the specified variable changes, the message will be printed about
the variable being changed. If the command is specified, the command
will be executed. The command will receive the following arguments:
COMMAND(<variable> <access> <value> <current list file> <stack>)
while
Evaluate a group of commands while a condition is true
while(condition)
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endwhile(condition)
All commands between while and the matching endwhile are recorded
without being invoked. Once the endwhile is evaluated, the recorded
list of commands is invoked as long as the condition is true. The
condition is evaluated using the same logic as the if command.
------------------------------------------------------------------------------
Properties
CMake Properties - Properties supported by CMake, the Cross-Platform Makefile Generator.
This is the documentation for the properties supported by CMake. Properties
can have different scopes. They can either be assigned to a source file, a
directory, a target or globally to CMake. By modifying the values of
properties the behaviour of the build system can be customized.
------------------------------------------------------------------------------
Properties of Global Scope
ALLOW_DUPLICATE_CUSTOM_TARGETS
Allow duplicate custom targets to be created.
Normally CMake requires that all targets built in a project have
globally unique logical names (see policy CMP0002). This is necessary
to generate meaningful project file names in Xcode and VS IDE
generators. It also allows the target names to be referenced
unambiguously.
Makefile generators are capable of supporting duplicate custom target
names. For projects that care only about Makefile generators and do
not wish to support Xcode or VS IDE generators, one may set this
property to true to allow duplicate custom targets. The property
allows multiple add_custom_target command calls in different
directories to specify the same target name. However, setting this
property will cause non-Makefile generators to produce an error and
refuse to generate the project.
DISABLED_FEATURES
List of features which are disabled during the CMake run.
List of features which are disabled during the CMake run. Be default
it contains the names of all packages which were not found. This is
determined using the <NAME>_FOUND variables. Packages which are
searched QUIET are not listed. A project can add its own features to
this list.This property is used by the macros in FeatureSummary.cmake.
ENABLED_FEATURES
List of features which are enabled during the CMake run.
List of features which are enabled during the CMake run. Be default
it contains the names of all packages which were found. This is
determined using the <NAME>_FOUND variables. Packages which are
searched QUIET are not listed. A project can add its own features to
this list.This property is used by the macros in FeatureSummary.cmake.
FIND_LIBRARY_USE_LIB64_PATHS
Whether FIND_LIBRARY should automatically search lib64 directories.
FIND_LIBRARY_USE_LIB64_PATHS is a boolean specifying whether the
FIND_LIBRARY command should automatically search the lib64 variant of
directories called lib in the search path when building 64-bit
binaries.
GLOBAL_DEPENDS_DEBUG_MODE
Enable global target dependency graph debug mode.
CMake automatically analyzes the global inter-target dependency graph
at the beginning of native build system generation. This property
causes it to display details of its analysis to stderr.
IN_TRY_COMPILE
Read-only property that is true during a try-compile configuration.
True when building a project inside a TRY_COMPILE or TRY_RUN command.
PACKAGES_FOUND
List of packages which were found during the CMake run.
List of packages which were found during the CMake run. Whether a
package has been found is determined using the <NAME>_FOUND variables.
PACKAGES_NOT_FOUND
List of packages which were not found during the CMake run.
List of packages which were not found during the CMake run. Whether a
package has been found is determined using the <NAME>_FOUND variables.
REPORT_UNDEFINED_PROPERTIES
If set, report any undefined properties to this file.
If this property is set to a filename then when CMake runs it will
report any properties or variables that were accessed but not defined
into the filename specified in this property.
TARGET_ARCHIVES_MAY_BE_SHARED_LIBS
Set if shared libraries may be named like archives.
On AIX shared libraries may be named "lib<name>.a". This property is
set to true on such platforms.
TARGET_SUPPORTS_SHARED_LIBS
Does the target platform support shared libraries.
TARGET_SUPPORTS_SHARED_LIBS is a boolean specifying whether the target
platform supports shared libraries. Basically all current general
general purpose OS do so, the exception are usually embedded systems
with no or special OSs.
__CMAKE_DELETE_CACHE_CHANGE_VARS_
Internal property
Used to detect compiler changes, Do not set.
------------------------------------------------------------------------------
Properties on Directories
ADDITIONAL_MAKE_CLEAN_FILES
Additional files to clean during the make clean stage.
A list of files that will be cleaned as a part of the "make clean"
stage.
CLEAN_NO_CUSTOM
Should the output of custom commands be left.
If this is true then the outputs of custom commands for this directory
will not be removed during the "make clean" stage.
COMPILE_DEFINITIONS
Preprocessor definitions for compiling a directory's sources.
The COMPILE_DEFINITIONS property may be set to a list of preprocessor
definitions using the syntax VAR or VAR=value. Function-style
definitions are not supported. CMake will automatically escape the
value correctly for the native build system (note that CMake language
syntax may require escapes to specify some values). This property may
be set on a per-configuration basis using the name
COMPILE_DEFINITIONS_<CONFIG> where <CONFIG> is an upper-case name (ex.
"COMPILE_DEFINITIONS_DEBUG"). This property will be initialized in
each directory by its value in the directory's parent.
CMake will automatically drop some definitions that are not supported
by the native build tool. The VS6 IDE does not support definitions
with values (but NMake does).
Dislaimer: Most native build tools have poor support for escaping
certain values. CMake has work-arounds for many cases but some values
may just not be possible to pass correctly. If a value does not seem
to be escaped correctly, do not attempt to work-around the problem by
adding escape sequences to the value. Your work-around may break in a
future version of CMake that has improved escape support. Instead
consider defining the macro in a (configured) header file. Then
report the limitation.
COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions in a directory.
This is the configuration-specific version of COMPILE_DEFINITIONS.
This property will be initialized in each directory by its value in
the directory's parent.
EXCLUDE_FROM_ALL
Exclude the directory from the all target of its parent.
A property on a directory that indicates if its targets are excluded
from the default build target. If it is not, then with a Makefile for
example typing make will cause the targets to be built. The same
concept applies to the default build of other generators.
LISTFILE_STACK
The current stack of listfiles being processed.
This property is mainly useful when trying to debug errors in your
CMake scripts. It returns a list of what list files are currently
being processed, in order. So if one listfile does an INCLUDE command
then that is effectively pushing the included listfile onto the stack.
TEST_INCLUDE_FILE
A cmake file that will be included when ctest is run.
If you specify TEST_INCLUDE_FILE, that file will be included and
processed when ctest is run on the directory.
------------------------------------------------------------------------------
Properties on Targets
ARCHIVE_OUTPUT_DIRECTORY
Output directory in which to build ARCHIVE target files.
This property specifies the directory into which archive target files
should be built. There are three kinds of target files that may be
built: archive, library, and runtime. Executables are always treated
as runtime targets. Static libraries are always treated as archive
targets. Module libraries are always treated as library targets. For
non-DLL platforms shared libraries are treated as library targets.
For DLL platforms the DLL part of a shared library is treated as a
runtime target and the corresponding import library is treated as an
archive target. All Windows-based systems including Cygwin are DLL
platforms. This property is initialized by the value of the variable
CMAKE_ARCHIVE_OUTPUT_DIRECTORY if it is set when a target is created.
BUILD_WITH_INSTALL_RPATH
Should build tree targets have install tree rpaths.
BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link the
target in the build tree with the INSTALL_RPATH. This takes
precedence over SKIP_BUILD_RPATH and avoids the need for relinking
before installation.
CLEAN_DIRECT_OUTPUT
Do not delete other variants of this target.
When a library is built CMake by default generates code to remove any
existing library using all possible names. This is needed to support
libraries that switch between STATIC and SHARED by a user option.
However when using OUTPUT_NAME to build a static and shared library of
the same name using different logical target names the two targets
will remove each other's files. This can be prevented by setting the
CLEAN_DIRECT_OUTPUT property to 1.
COMPILE_DEFINITIONS
Preprocessor definitions for compiling a target's sources.
The COMPILE_DEFINITIONS property may be set to a list of preprocessor
definitions using the syntax VAR or VAR=value. Function-style
definitions are not supported. CMake will automatically escape the
value correctly for the native build system (note that CMake language
syntax may require escapes to specify some values). This property may
be set on a per-configuration basis using the name
COMPILE_DEFINITIONS_<CONFIG> where <CONFIG> is an upper-case name (ex.
"COMPILE_DEFINITIONS_DEBUG").
CMake will automatically drop some definitions that are not supported
by the native build tool. The VS6 IDE does not support definitions
with values (but NMake does).
Dislaimer: Most native build tools have poor support for escaping
certain values. CMake has work-arounds for many cases but some values
may just not be possible to pass correctly. If a value does not seem
to be escaped correctly, do not attempt to work-around the problem by
adding escape sequences to the value. Your work-around may break in a
future version of CMake that has improved escape support. Instead
consider defining the macro in a (configured) header file. Then
report the limitation.
COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions on a target.
This is the configuration-specific version of COMPILE_DEFINITIONS.
COMPILE_FLAGS
Additional flags to use when compiling this target's sources.
The COMPILE_FLAGS property sets additional compiler flags used to
build sources within the target. Use COMPILE_DEFINITIONS to pass
additional preprocessor definitions.
DEBUG_POSTFIX
A postfix that will be applied to this target when build debug.
A property on a target that specifies a postfix to add to the target
name when built in debug mode. For example "foo.dll" versus
"fooD.dll". Ignored for Mac Frameworks and App Bundles.
DEFINE_SYMBOL
Define a symbol when compiling this target's sources.
DEFINE_SYMBOL sets the name of the preprocessor symbol defined when
compiling sources in a shared library. If not set here then it is set
to target_EXPORTS by default (with some substitutions if the target is
not a valid C identifier). This is useful for headers to know whether
they are being included from inside their library our outside to
properly setup dllexport/dllimport decorations.
ENABLE_EXPORTS
Specify whether an executable exports symbols for loadable modules.
Normally an executable does not export any symbols because it is the
final program. It is possible for an executable to export symbols to
be used by loadable modules. When this property is set to true CMake
will allow other targets to "link" to the executable with the
TARGET_LINK_LIBRARIES command. On all platforms a target-level
dependency on the executable is created for targets that link to it.
For non-DLL platforms the link rule is simply ignored since the
dynamic loader will automatically bind symbols when the module is
loaded. For DLL platforms an import library will be created for the
exported symbols and then used for linking. All Windows-based systems
including Cygwin are DLL platforms.
EXCLUDE_FROM_ALL
Exclude the target from the all target.
A property on a target that indicates if the target is excluded from
the default build target. If it is not, then with a Makefile for
example typing make will cause this target to be built. The same
concept applies to the default build of other generators. Installing
a target with EXCLUDE_FROM_ALL set to true has undefined behavior.
EchoString
A message to be displayed when the target is built.
A message to display on some generators (such as makefiles) when the
target is built.
FRAMEWORK
This target is a framework on the Mac.
If a shared library target has this property set to true it will be
built as a framework when built on the mac. It will have the
directory structure required for a framework and will be suitable to
be used with the -framework option
Fortran_MODULE_DIRECTORY
Specify output directory for Fortran modules provided by the target.
If the target contains Fortran source files that provide modules and
the compiler supports a module output directory this specifies the
directory in which the modules will be placed. When this property is
not set the modules will be placed in the build directory
corresponding to the target's source directory. If the variable
CMAKE_Fortran_MODULE_DIRECTORY is set when a target is created its
value is used to initialize this property.
GENERATOR_FILE_NAME
Generator's file for this target.
An internal property used by some generators to record the name of
project or dsp file associated with this target.
HAS_CXX
Force a target to use the CXX linker.
Setting HAS_CXX on a target will force the target to use the C++
linker (and C++ runtime libraries) for linking even if the target has
no C++ code in it.
IMPORTED
Read-only indication of whether a target is IMPORTED.
The boolean value of this property is true for targets created with
the IMPORTED option to add_executable or add_library. It is false for
targets built within the project.
IMPORTED_CONFIGURATIONS
Configurations provided for an IMPORTED target.
Lists configuration names available for an IMPORTED target. The names
correspond to configurations defined in the project from which the
target is imported. If the importing project uses a different set of
configurations the names may be mapped using the
MAP_IMPORTED_CONFIG_<CONFIG> property. Ignored for non-imported
targets.
IMPORTED_IMPLIB
Full path to the import library for an IMPORTED target.
Specifies the location of the ".lib" part of a windows DLL. Ignored
for non-imported targets.
IMPORTED_IMPLIB_<CONFIG>
Per-configuration version of IMPORTED_IMPLIB property.
This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names correspond
to those provided by the project from which the target is imported.
IMPORTED_LINK_DEPENDENT_LIBRARIES
Dependent shared libraries of an imported shared library.
Shared libraries may be linked to other shared libraries as part of
their implementation. On some platforms the linker searches for the
dependent libraries of shared libraries they are including in the
link. This property lists the dependent shared libraries of an
imported library. The list should be disjoint from the list of
interface libraries in the IMPORTED_LINK_INTERFACE_LIBRARIES property.
On platforms requiring dependent shared libraries to be found at link
time CMake uses this list to add appropriate files or paths to the
link command line. Ignored for non-imported targets.
IMPORTED_LINK_DEPENDENT_LIBRARIES_<CONFIG>
Per-configuration version of IMPORTED_LINK_DEPENDENT_LIBRARIES.
This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names correspond
to those provided by the project from which the target is imported.
IMPORTED_LINK_INTERFACE_LIBRARIES
Transitive link interface of an IMPORTED target.
Lists libraries whose interface is included when an IMPORTED library
target is linked to another target. The libraries will be included on
the link line for the target. Ignored for non-imported targets.
IMPORTED_LINK_INTERFACE_LIBRARIES_<CONFIG>
Per-configuration version of IMPORTED_LINK_INTERFACE_LIBRARIES.
This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names correspond
to those provided by the project from which the target is imported.
IMPORTED_LOCATION
Full path to the main file on disk for an IMPORTED target.
Specifies the location of an IMPORTED target file on disk. For
executables this is the location of the executable file. For bundles
on OS X this is the location of the executable file inside
Contents/MacOS under the application bundle folder. For static
libraries and modules this is the location of the library or module.
For shared libraries on non-DLL platforms this is the location of the
shared library. For frameworks on OS X this is the location of the
library file symlink just inside the framework folder. For DLLs this
is the location of the ".dll" part of the library. Ignored for
non-imported targets.
IMPORTED_LOCATION_<CONFIG>
Per-configuration version of IMPORTED_LOCATION property.
This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names correspond
to those provided by the project from which the target is imported.
IMPORTED_SONAME
The "soname" of an IMPORTED target of shared library type.
Specifies the "soname" embedded in an imported shared library. This
is meaningful only on platforms supporting the feature. Ignored for
non-imported targets.
IMPORTED_SONAME_<CONFIG>
Per-configuration version of IMPORTED_SONAME property.
This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names correspond
to those provided by the project from which the target is imported.
IMPORT_PREFIX
What comes before the import library name.
Similar to the target property PREFIX, but used for import libraries
(typically corresponding to a DLL) instead of regular libraries. A
target property that can be set to override the prefix (such as "lib")
on an import library name.
IMPORT_SUFFIX
What comes after the import library name.
Similar to the target property SUFFIX, but used for import libraries
(typically corresponding to a DLL) instead of regular libraries. A
target property that can be set to override the suffix (such as
".lib") on an import library name.
INSTALL_NAME_DIR
Mac OSX directory name for installed targets.
INSTALL_NAME_DIR is a string specifying the directory portion of the
"install_name" field of shared libraries on Mac OSX to use in the
installed targets.
INSTALL_RPATH
The rpath to use for installed targets.
A semicolon-separated list specifying the rpath to use in installed
targets (for platforms that support it).
INSTALL_RPATH_USE_LINK_PATH
Add paths to linker search and installed rpath.
INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true will
append directories in the linker search path and outside the project
to the INSTALL_RPATH.
LIBRARY_OUTPUT_DIRECTORY
Output directory in which to build LIBRARY target files.
This property specifies the directory into which library target files
should be built. There are three kinds of target files that may be
built: archive, library, and runtime. Executables are always treated
as runtime targets. Static libraries are always treated as archive
targets. Module libraries are always treated as library targets. For
non-DLL platforms shared libraries are treated as library targets.
For DLL platforms the DLL part of a shared library is treated as a
runtime target and the corresponding import library is treated as an
archive target. All Windows-based systems including Cygwin are DLL
platforms. This property is initialized by the value of the variable
CMAKE_LIBRARY_OUTPUT_DIRECTORY if it is set when a target is created.
LINKER_LANGUAGE
What tool to use for linking, based on language.
The LINKER_LANGUAGE property is used to change the tool used to link
an executable or shared library. The default is set the language to
match the files in the library. CXX and C are common values for this
property.
LINK_FLAGS
Additional flags to use when linking this target.
The LINK_FLAGS property can be used to add extra flags to the link
step of a target. LINK_FLAGS_<CONFIG> will add to the configuration
<CONFIG>, for example, DEBUG, RELEASE, MINSIZEREL, RELWITHDEBINFO.
LINK_FLAGS_<CONFIG>
Per-configuration linker flags for a target.
This is the configuration-specific version of LINK_FLAGS.
LINK_INTERFACE_LIBRARIES
List public interface libraries for a shared library or executable.
By default linking to a shared library target transitively links to
targets with which the library itself was linked. For an executable
with exports (see the ENABLE_EXPORTS property) no default transitive
link dependencies are used. This property replaces the default
transitive link dependencies with an explict list. When the target is
linked into another target the libraries listed (and recursively their
link interface libraries) will be provided to the other target also.
If the list is empty then no transitive link dependencies will be
incorporated when this target is linked into another target even if
the default set is non-empty.
LINK_INTERFACE_LIBRARIES_<CONFIG>
Per-configuration list of public interface libraries for a target.
This is the configuration-specific version of
LINK_INTERFACE_LIBRARIES.
LINK_SEARCH_END_STATIC
End a link line such that static system libraries are used.
Some linkers support switches such as -Bstatic and -Bdynamic to
determine whether to use static or shared libraries for -lXXX options.
CMake uses these options to set the link type for libraries whose full
paths are not known or (in some cases) are in implicit link
directories for the platform. By default the linker search type is
left at -Bdynamic by the end of the library list. This property
switches the final linker search type to -Bstatic.
LOCATION
Deprecated. Use LOCATION_<CONFIG> or avoid altogether.
This property is provided for compatibility with CMake 2.4 and below.
It was meant to get the location of an executable target's output file
for use in add_custom_command. In CMake 2.6 and above
add_custom_command automatically recognizes a target name in its
COMMAND and DEPENDS options and computes the target location.
Therefore this property need not be used. This property is not
defined for IMPORTED targets because they were not available in CMake
2.4 or below anyway.
LOCATION_<CONFIG>
Read-only property providing a target location on disk.
A read-only property that indicates where a target's main file is
located on disk for the configuration <CONFIG>. The property is
defined only for library and executable targets.
MACOSX_BUNDLE
Build an executable as an application bundle on Mac OS X.
When this property is set to true the executable when built on Mac OS
X will be created as an application bundle. This makes it a GUI
executable that can be launched from the Finder.
The bundle Info.plist file is generated automatically. The following
target properties may be set to specify its content:
MACOSX_BUNDLE_INFO_STRING
MACOSX_BUNDLE_ICON_FILE
MACOSX_BUNDLE_GUI_IDENTIFIER
MACOSX_BUNDLE_LONG_VERSION_STRING
MACOSX_BUNDLE_BUNDLE_NAME
MACOSX_BUNDLE_SHORT_VERSION_STRING
MACOSX_BUNDLE_BUNDLE_VERSION
MACOSX_BUNDLE_COPYRIGHT
MAP_IMPORTED_CONFIG_<CONFIG>
Map from project configuration to IMPORTED target's configuration.
List configurations of an imported target that may be used for the
current project's <CONFIG> configuration. Targets imported from
another project may not provide the same set of configuration names
available in the current project. Setting this property tells CMake
what imported configurations are suitable for use when building the
<CONFIG> configuration. The first configuration in the list found to
be provided by the imported target is selected. If no matching
configurations are available the imported target is considered to be
not found. This property is ignored for non-imported targets.
OUTPUT_NAME
Sets the real name of a target when it is built.
Sets the real name of a target when it is built and can be used to
help create two targets of the same name even though CMake requires
unique logical target names. There is also a <CONFIG>_OUTPUT_NAME
that can set the output name on a per-configuration basis.
POST_INSTALL_SCRIPT
Deprecated install support.
The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the old
way to specify CMake scripts to run before and after installing a
target. They are used only when the old INSTALL_TARGETS command is
used to install the target. Use the INSTALL command instead.
PREFIX
What comes before the library name.
A target property that can be set to override the prefix (such as
"lib") on a library name.
PRE_INSTALL_SCRIPT
Deprecated install support.
The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the old
way to specify CMake scripts to run before and after installing a
target. They are used only when the old INSTALL_TARGETS command is
used to install the target. Use the INSTALL command instead.
PRIVATE_HEADER
Specify private header files in a FRAMEWORK shared library target.
Shared library targets marked with the FRAMEWORK property generate
frameworks on OS X and normal shared libraries on other platforms.
This property may be set to a list of header files to be placed in the
PrivateHeaders directory inside the framework folder. On non-Apple
platforms these headers may be installed using the PRIVATE_HEADER
option to the install(TARGETS) command.
PUBLIC_HEADER
Specify public header files in a FRAMEWORK shared library target.
Shared library targets marked with the FRAMEWORK property generate
frameworks on OS X and normal shared libraries on other platforms.
This property may be set to a list of header files to be placed in the
Headers directory inside the framework folder. On non-Apple platforms
these headers may be installed using the PUBLIC_HEADER option to the
install(TARGETS) command.
RESOURCE
Specify resource files in a FRAMEWORK shared library target.
Shared library targets marked with the FRAMEWORK property generate
frameworks on OS X and normal shared libraries on other platforms.
This property may be set to a list of files to be placed in the
Resources directory inside the framework folder. On non-Apple
platforms these files may be installed using the RESOURCE option to
the install(TARGETS) command.
RUNTIME_OUTPUT_DIRECTORY
Output directory in which to build RUNTIME target files.
This property specifies the directory into which runtime target files
should be built. There are three kinds of target files that may be
built: archive, library, and runtime. Executables are always treated
as runtime targets. Static libraries are always treated as archive
targets. Module libraries are always treated as library targets. For
non-DLL platforms shared libraries are treated as library targets.
For DLL platforms the DLL part of a shared library is treated as a
runtime target and the corresponding import library is treated as an
archive target. All Windows-based systems including Cygwin are DLL
platforms. This property is initialized by the value of the variable
CMAKE_RUNTIME_OUTPUT_DIRECTORY if it is set when a target is created.
SKIP_BUILD_RPATH
Should rpaths be used for the build tree.
SKIP_BUILD_RPATH is a boolean specifying whether to skip automatic
generation of an rpath allowing the target to run from the build tree.
SOURCES
Source names specified for a target.
Read-only list of sources specified for a target. The names returned
are suitable for passing to the set_source_files_properties command.
SOVERSION
What version number is this target.
For shared libraries VERSION and SOVERSION can be used to specify the
build version and api version respectively. When building or
installing appropriate symlinks are created if the platform supports
symlinks and the linker supports so-names. If only one of both is
specified the missing is assumed to have the same version number. For
shared libraries and executables on Windows the VERSION attribute is
parsed to extract a "major.minor" version number. These numbers are
used as the image version of the binary.
STATIC_LIBRARY_FLAGS
Extra flags to use when linking static libraries.
Extra flags to use when linking a static library.
SUFFIX
What comes after the library name.
A target property that can be set to override the suffix (such as
".so") on a library name.
VERSION
What version number is this target.
For shared libraries VERSION and SOVERSION can be used to specify the
build version and api version respectively. When building or
installing appropriate symlinks are created if the platform supports
symlinks and the linker supports so-names. If only one of both is
specified the missing is assumed to have the same version number. For
executables VERSION can be used to specify the build version. When
building or installing appropriate symlinks are created if the
platform supports symlinks. For shared libraries and executables on
Windows the VERSION attribute is parsed to extract a "major.minor"
version number. These numbers are used as the image version of the
binary.
WIN32_EXECUTABLE
Build an executable with a WinMain entry point on windows.
When this property is set to true the executable when linked on
Windows will be created with a WinMain() entry point instead of of
just main().This makes it a GUI executable instead of a console
application. See the CMAKE_MFC_FLAG variable documentation to
configure use of MFC for WinMain executables.
XCODE_ATTRIBUTE_<an-attribute>
Set Xcode target attributes directly.
Tell the Xcode generator to set '<an-attribute>' to a given value in
the generated Xcode project. Ignored on other generators.
------------------------------------------------------------------------------
Properties on Tests
FAIL_REGULAR_EXPRESSION
If the output matches this regular expression the test will fail.
If set, if the output matches one of specified regular expressions,
the test will fail.For example: PASS_REGULAR_EXPRESSION
"[^a-z]Error;ERROR;Failed"
MEASUREMENT
Specify a DART measurement and value to be reported for a test.
If set to a name then that name will be reported to DART as a named
measurement with a value of 1. You may also specify a value by
setting MEASUREMENT to "measurement=value".
PASS_REGULAR_EXPRESSION
The output must match this regular expression for the test to pass.
If set, the test output will be checked against the specified regular
expressions and at least one of the regular expressions has to match,
otherwise the test will fail.
TIMEOUT
How many seconds to allow for this test.
This property if set will limit a test to not take more than the
specified number of seconds to run. If it exceeds that the test
process will be killed and ctest will move to the next test. This
setting takes precedence over DART_TESTING_TIMEOUT and
CTEST_TESTING_TIMEOUT.
WILL_FAIL
If set to true, this will invert the pass/fail flag of the test.
This property can be used for tests that are expected to fail and
return a non zero return code.
------------------------------------------------------------------------------
Properties on Source Files
ABSTRACT
Is this source file an abstract class.
A property on a source file that indicates if the source file
represents a class that is abstract. This only makes sense for
languages that have a notion of an abstract class and it is only used
by some tools that wrap classes into other languages.
COMPILE_DEFINITIONS
Preprocessor definitions for compiling a source file.
The COMPILE_DEFINITIONS property may be set to a list of preprocessor
definitions using the syntax VAR or VAR=value. Function-style
definitions are not supported. CMake will automatically escape the
value correctly for the native build system (note that CMake language
syntax may require escapes to specify some values). This property may
be set on a per-configuration basis using the name
COMPILE_DEFINITIONS_<CONFIG> where <CONFIG> is an upper-case name (ex.
"COMPILE_DEFINITIONS_DEBUG").
CMake will automatically drop some definitions that are not supported
by the native build tool. The VS6 IDE does not support definitions
with values (but NMake does). Xcode does not support
per-configuration definitions on source files.
Dislaimer: Most native build tools have poor support for escaping
certain values. CMake has work-arounds for many cases but some values
may just not be possible to pass correctly. If a value does not seem
to be escaped correctly, do not attempt to work-around the problem by
adding escape sequences to the value. Your work-around may break in a
future version of CMake that has improved escape support. Instead
consider defining the macro in a (configured) header file. Then
report the limitation.
COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions on a source file.
This is the configuration-specific version of COMPILE_DEFINITIONS.
Note that Xcode does not support per-configuration source file flags
so this property will be ignored by the Xcode generator.
COMPILE_FLAGS
Additional flags to be added when compiling this source file.
These flags will be added to the list of compile flags when this
source file builds. Use COMPILE_DEFINITIONS to pass additional
preprocessor definitions.
EXTERNAL_OBJECT
If set to true then this is an object file.
If this property is set to true then the source file is really an
object file and should not be compiled. It will still be linked into
the target though.
GENERATED
Is this source file generated as part of the build process.
If a source file is generated by the build process CMake will handle
it differently in temrs of dependency checking etc. Otherwise having
a non-existent source file could create problems.
HEADER_FILE_ONLY
Is this source file only a header file.
A property on a source file that indicates if the source file is a
header file with no associated implementation. This is set
automatically based on the file extension and is used by CMake to
determine is certain dependency information should be computed.
KEEP_EXTENSION
Make the output file have the same extension as the source file.
If this property is set then the file extension of the output file
will be the same as that of the source file. Normally the output file
extension is computed based on the language of the source file, for
example .cxx will go to a .o extension.
LANGUAGE
What programming language is the file.
A property that can be set to indicate what programming language the
source file is. If it is not set the language is determined based on
the file extension. Typical values are CXX C etc.
LOCATION
The full path to a source file.
A read only property on a SOURCE FILE that contains the full path to
the source file.
MACOSX_PACKAGE_LOCATION
Place a source file inside a Mac OS X bundle or framework.
Executable targets with the MACOSX_BUNDLE property set are built as
Mac OS X application bundles on Apple platforms. Shared library
targets with the FRAMEWORK property set are built as Mac OS X
frameworks on Apple platforms. Source files listed in the target with
this property set will be copied to a directory inside the bundle or
framework content folder specified by the property value. For bundles
the content folder is "<name>.app/Contents". For frameworks the
content folder is "<name>.framework/Versions/<version>". See the
PUBLIC_HEADER, PRIVATE_HEADER, and RESOURCE target properties for
specifying files meant for Headers, PrivateHeadres, or Resources
directories.
OBJECT_DEPENDS
Additional dependencies.
Additional dependencies that should be checked as part of building
this source file.
OBJECT_OUTPUTS
Additional outputs for a Makefile rule.
Additional outputs created by compilation of this source file. If any
of these outputs is missing the object will be recompiled. This is
supported only on Makefile generators and will be ignored on other
generators.
SYMBOLIC
Is this just a name for a rule.
If SYMBOLIC (boolean) is set to true the build system will be informed
that the source file is not actually created on disk but instead used
as a symbolic name for a build rule.
WRAP_EXCLUDE
Exclude this source file from any code wrapping techniques.
Some packages can wrap source files into alternate languages to
provide additional functionality. For example, C++ code can be
wrapped into Java or Python etc using SWIG etc. If WRAP_EXCLUDE is
set to true (1 etc) that indicates then this source file should not be
wrapped.
------------------------------------------------------------------------------
Compatibility Commands
CMake Compatibility Listfile Commands - Obsolete commands supported by CMake for compatibility.
This is the documentation for now obsolete listfile commands from previous
CMake versions, which are still supported for compatibility reasons. You
should instead use the newer, faster and shinier new commands. ;-)
build_name
Deprecated. Use ${CMAKE_SYSTEM} and ${CMAKE_CXX_COMPILER} instead.
build_name(variable)
Sets the specified variable to a string representing the platform and
compiler settings. These values are now available through the
CMAKE_SYSTEM and CMAKE_CXX_COMPILER variables.
exec_program
Deprecated. Use the execute_process() command instead.
Run an executable program during the processing of the CMakeList.txt
file.
exec_program(Executable [directory in which to run]
[ARGS <arguments to executable>]
[OUTPUT_VARIABLE <var>]
[RETURN_VALUE <var>])
The executable is run in the optionally specified directory. The
executable can include arguments if it is double quoted, but it is
better to use the optional ARGS argument to specify arguments to the
program. This is because cmake will then be able to escape spaces in
the executable path. An optional argument OUTPUT_VARIABLE specifies a
variable in which to store the output. To capture the return value of
the execution, provide a RETURN_VALUE. If OUTPUT_VARIABLE is
specified, then no output will go to the stdout/stderr of the console
running cmake.
export_library_dependencies
Deprecated. Use INSTALL(EXPORT) or EXPORT command.
This command generates an old-style library dependencies file.
Projects requiring CMake 2.6 or later should not use the command. Use
instead the install(EXPORT) command to help export targets from an
installation tree and the export() command to export targets from a
build tree.
The old-style library dependencies file does not take into account
per-configuration names of libraries or the LINK_INTERFACE_LIBRARIES
target property.
export_library_dependencies(<file> [APPEND])
Create a file named <file> that can be included into a CMake listfile
with the INCLUDE command. The file will contain a number of SET
commands that will set all the variables needed for library dependency
information. This should be the last command in the top level
CMakeLists.txt file of the project. If the APPEND option is
specified, the SET commands will be appended to the given file instead
of replacing it.
install_files
Deprecated. Use the install(FILES ) command instead.
This command has been superceded by the install command. It is
provided for compatibility with older CMake code. The FILES form is
directly replaced by the FILES form of the install command. The
regexp form can be expressed more clearly using the GLOB form of the
file command.
install_files(<dir> extension file file ...)
Create rules to install the listed files with the given extension into
the given directory. Only files existing in the current source tree
or its corresponding location in the binary tree may be listed. If a
file specified already has an extension, that extension will be
removed first. This is useful for providing lists of source files
such as foo.cxx when you want the corresponding foo.h to be installed.
A typical extension is '.h'.
install_files(<dir> regexp)
Any files in the current source directory that match the regular
expression will be installed.
install_files(<dir> FILES file file ...)
Any files listed after the FILES keyword will be installed explicitly
from the names given. Full paths are allowed in this form.
The directory <dir> is relative to the installation prefix, which is
stored in the variable CMAKE_INSTALL_PREFIX.
install_programs
Deprecated. Use the install(PROGRAMS ) command instead.
This command has been superceded by the install command. It is
provided for compatibility with older CMake code. The FILES form is
directly replaced by the PROGRAMS form of the INSTALL command. The
regexp form can be expressed more clearly using the GLOB form of the
FILE command.
install_programs(<dir> file1 file2 [file3 ...])
install_programs(<dir> FILES file1 [file2 ...])
Create rules to install the listed programs into the given directory.
Use the FILES argument to guarantee that the file list version of the
command will be used even when there is only one argument.
install_programs(<dir> regexp)
In the second form any program in the current source directory that
matches the regular expression will be installed.
This command is intended to install programs that are not built by
cmake, such as shell scripts. See the TARGETS form of the INSTALL
command to create installation rules for targets built by cmake.
The directory <dir> is relative to the installation prefix, which is
stored in the variable CMAKE_INSTALL_PREFIX.
install_targets
Deprecated. Use the install(TARGETS ) command instead.
This command has been superceded by the install command. It is
provided for compatibility with older CMake code.
install_targets(<dir> [RUNTIME_DIRECTORY dir] target target)
Create rules to install the listed targets into the given directory.
The directory <dir> is relative to the installation prefix, which is
stored in the variable CMAKE_INSTALL_PREFIX. If RUNTIME_DIRECTORY is
specified, then on systems with special runtime files (Windows DLL),
the files will be copied to that directory.
link_libraries
Deprecated. Use the target_link_libraries() command instead.
Link libraries to all targets added later.
link_libraries(library1 <debug | optimized> library2 ...)
Specify a list of libraries to be linked into any following targets
(typically added with the add_executable or add_library calls). This
command is passed down to all subdirectories. The debug and optimized
strings may be used to indicate that the next library listed is to be
used only for that specific type of build.
make_directory
Deprecated. Use the file(MAKE_DIRECTORY ) command instead.
make_directory(directory)
Creates the specified directory. Full paths should be given. Any
parent directories that do not exist will also be created. Use with
care.
remove
Deprecated. Use the list(REMOVE_ITEM ) command instead.
remove(VAR VALUE VALUE ...)
Removes VALUE from the variable VAR. This is typically used to remove
entries from a vector (e.g. semicolon separated list). VALUE is
expanded.
subdir_depends
Deprecated. Does nothing.
subdir_depends(subdir dep1 dep2 ...)
Does not do anything. This command used to help projects order
parallel builds correctly. This functionality is now automatic.
subdirs
Deprecated. Use the add_subdirectory() command instead.
Add a list of subdirectories to the build.
subdirs(dir1 dir2 ...[EXCLUDE_FROM_ALL exclude_dir1 exclude_dir2 ...] [PREORDER] )
Add a list of subdirectories to the build. The add_subdirectory
command should be used instead of subdirs although subdirs will still
work. This will cause any CMakeLists.txt files in the sub directories
to be processed by CMake. Any directories after the PREORDER flag are
traversed first by makefile builds, the PREORDER flag has no effect on
IDE projects. Any directories after the EXCLUDE_FROM_ALL marker will
not be included in the top level makefile or project file. This is
useful for having CMake create makefiles or projects for a set of
examples in a project. You would want CMake to generate makefiles or
project files for all the examples at the same time, but you would not
want them to show up in the top level project or be built each time
make is run from the top.
use_mangled_mesa
Copy mesa headers for use in combination with system GL.
use_mangled_mesa(PATH_TO_MESA OUTPUT_DIRECTORY)
The path to mesa includes, should contain gl_mangle.h. The mesa
headers are copied to the specified output directory. This allows
mangled mesa headers to override other GL headers by being added to
the include directory path earlier.
utility_source
Specify the source tree of a third-party utility.
utility_source(cache_entry executable_name
path_to_source [file1 file2 ...])
When a third-party utility's source is included in the distribution,
this command specifies its location and name. The cache entry will
not be set unless the path_to_source and all listed files exist. It
is assumed that the source tree of the utility will have been built
before it is needed.
When cross compiling CMake will print a warning if a utility_source()
command is executed, because in many cases it is used to build an
executable which is executed later on. This doesn't work when cross
compiling, since the executable can run only on their target platform.
So in this case the cache entry has to be adjusted manually so it
points to an executable which is runnable on the build host.
variable_requires
Deprecated. Use the if() command instead.
Assert satisfaction of an option's required variables.
variable_requires(TEST_VARIABLE RESULT_VARIABLE
REQUIRED_VARIABLE1
REQUIRED_VARIABLE2 ...)
The first argument (TEST_VARIABLE) is the name of the variable to be
tested, if that variable is false nothing else is done. If
TEST_VARIABLE is true, then the next argument (RESULT_VARIABLE) is a
variable that is set to true if all the required variables are set.
The rest of the arguments are variables that must be true or not set
to NOTFOUND to avoid an error. If any are not true, an error is
reported.
write_file
Deprecated. Use the file(WRITE ) command instead.
write_file(filename "message to write"... [APPEND])
The first argument is the file name, the rest of the arguments are
messages to write. If the argument APPEND is specified, then the
message will be appended.
NOTE 1: file(WRITE ... and file(APPEND ... do exactly the same as
this one but add some more functionality.
NOTE 2: When using write_file the produced file cannot be used as an
input to CMake (CONFIGURE_FILE, source file ...) because it will lead
to an infinite loop. Use configure_file if you want to generate input
files to CMake.
------------------------------------------------------------------------------
Standard CMake Modules
The following modules are provided with CMake. They can be used with
INCLUDE(ModuleName).
CMake Modules - Modules coming with CMake, the Cross-Platform Makefile Generator.
This is the documentation for the modules and scripts coming with CMake.
Using these modules you can check the computer system for installed software
packages, features of the compiler and the existance of headers to name just
a few.
AddFileDependencies
ADD_FILE_DEPENDENCIES(source_file depend_files...)
Adds the given files as dependencies to source_file
CMakeBackwardCompatibilityCXX
define a bunch of backwards compatibility variables
CMAKE_ANSI_CXXFLAGS - flag for ansi c++
CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
INCLUDE(TestForANSIStreamHeaders)
INCLUDE(CheckIncludeFileCXX)
INCLUDE(TestForSTDNamespace)
INCLUDE(TestForANSIForScope)
CMakeDependentOption
Macro to provide an option dependent on other options.
This macro presents an option to the user only if a set of other
conditions are true. When the option is not presented a default value
is used, but any value set by the user is preserved for when the
option is presented again. Example invocation:
CMAKE_DEPENDENT_OPTION(USE_FOO "Use Foo" ON
"USE_BAR;NOT USE_ZOT" OFF)
If USE_BAR is true and USE_ZOT is false, this provides an option
called USE_FOO that defaults to ON. Otherwise, it sets USE_FOO to
OFF. If the status of USE_BAR or USE_ZOT ever changes, any value for
the USE_FOO option is saved so that when the option is re-enabled it
retains its old value.
CMakeDetermineASM-ATTCompiler
determine the compiler to use for ASM using AT&T syntax
CMakeDetermineASMCompiler
determine the compiler to use for ASM programs
CMakeExportBuildSettings
export build settings from a project.
CMAKE_EXPORT_BUILD_SETTINGS(SETTINGS_FILE)
macro defined to export the build settings for use by another project.
SETTINGS_FILE - the file into which the settings are to be stored.
CMakeFindFrameworks
helper module to find OSX frameworks
CMakeForceCompiler
This module defines macros intended for use by cross-compiling
toolchain files when CMake is not able to automatically detect the
compiler identification.
Macro CMAKE_FORCE_C_COMPILER has the following signature:
CMAKE_FORCE_C_COMPILER(<compiler> <compiler-id>)
It sets CMAKE_C_COMPILER to the given compiler and the cmake internal
variable CMAKE_C_COMPILER_ID to the given compiler-id. It also
bypasses the check for working compiler and basic compiler information
tests.
Macro CMAKE_FORCE_CXX_COMPILER has the following signature:
CMAKE_FORCE_CXX_COMPILER(<compiler> <compiler-id>)
It sets CMAKE_CXX_COMPILER to the given compiler and the cmake
internal variable CMAKE_CXX_COMPILER_ID to the given compiler-id. It
also bypasses the check for working compiler and basic compiler
information tests.
So a simple toolchain file could look like this:
INCLUDE (CMakeForceCompiler)
SET(CMAKE_SYSTEM_NAME Generic)
CMAKE_FORCE_C_COMPILER (chc12 MetrowerksHicross)
CMAKE_FORCE_CXX_COMPILER (chc12 MetrowerksHicross)
CMakeImportBuildSettings
import build settings from another project
CMAKE_IMPORT_BUILD_SETTINGS(SETTINGS_FILE)
macro defined to import the build settings from another project.
SETTINGS_FILE is a file created by the other project's call to the
CMAKE_EXPORT_BUILD_SETTINGS macro, see CMakeExportBuildSettings.
CMakeJavaInformation
This should be included before the _INIT variables are used to
initialize the cache. Since the rule variables have if blocks on
them, users can still define them here. But, it should still be after
the platform file so changes can be made to those values.
CMakePrintSystemInformation
print system information
This file can be used for diagnostic purposes just include it in a
project to see various internal CMake variables.
CPack
Default output files will be CPackConfig.cmake and
CPackSourceConfig.cmake. This can be overwritten with
CPACK_OUTPUT_CONFIG_FILE and CPACK_SOURCE_OUTPUT_CONFIG_FILE.
CPackRPM
CPack script for creating RPM package Author: Eric Noulard with the
help of Alexander Neundorf. All variables used by CPackRPM begins
with CPACK_RPM_ prefix
Here comes the list of used variables:
CTest
Configure a project for testing with CTest/Dart
This file configures a project to use the CTest/Dart testing/dashboard
process. This module should be included in the CMakeLists.txt file at
the top of a project. Typical usage:
INCLUDE(CTest)
IF(BUILD_TESTING)
# ... testing related CMake code ...
ENDIF(BUILD_TESTING)
The BUILD_TESTING option is created by the CTest module to determine
whether testing support should be enabled. The default is ON.
CheckCCompilerFlag
Check whether the C compiler supports a given flag.
CHECK_C_COMPILER_FLAG(FLAG VARIABLE)
FLAG - the compiler flag
VARIABLE - variable to store the result
CheckCSourceCompiles
macro which checks if the source code compiles
CHECK_C_SOURCE_COMPILES(SOURCE VAR)
SOURCE - source code to try to compile
VAR - variable to store whether the source code compiled
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckCSourceRuns
macro which checks if the source code runs
CHECK_C_SOURCE_RUNS(SOURCE VAR)
SOURCE - source code to try to compile
VAR - variable to store the result, 1 for success, empty for failure
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckCXXCompilerFlag
Check whether the CXX compiler supports a given flag.
CHECK_CXX_COMPILER_FLAG(FLAG VARIABLE)
FLAG - the compiler flag
VARIABLE - variable to store the result
CheckCXXSourceCompiles
macro which checks if the source code compiles
CHECK_CXX_SOURCE_COMPILES(SOURCE VAR)
SOURCE - source code to try to compile
VAR - variable to store whether the source code compiled
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckCXXSourceRuns
macro which checks if the source code compiles
CHECK_CXX_SOURCE_RUNS(SOURCE VAR)
SOURCE - source code to try to compile
VAR - variable to store the result, 1 for success, empty for failure
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckFortranFunctionExists
macro which checks if the Fortran function exists
CHECK_FORTRAN_FUNCTION_EXISTS(FUNCTION VARIABLE)
FUNCTION - the name of the Fortran function
VARIABLE - variable to store the result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckFunctionExists
macro which checks if the function exists
CHECK_FUNCTION_EXISTS(FUNCTION VARIABLE)
FUNCTION - the name of the function
VARIABLE - variable to store the result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckIncludeFile
macro which checks the include file exists.
CHECK_INCLUDE_FILE(INCLUDE VARIABLE)
INCLUDE - name of include file
VARIABLE - variable to return result
an optional third argument is the CFlags to add to the compile line or
you can use CMAKE_REQUIRED_FLAGS
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CheckIncludeFileCXX
Check if the include file exists.
CHECK_INCLUDE_FILE_CXX(INCLUDE VARIABLE)
INCLUDE - name of include file
VARIABLE - variable to return result
An optional third argument is the CFlags to add to the compile line or
you can use CMAKE_REQUIRED_FLAGS.
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CheckIncludeFiles
Check if the files can be included
CHECK_INCLUDE_FILES(INCLUDE VARIABLE)
INCLUDE - list of files to include
VARIABLE - variable to return result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CheckLibraryExists
Check if the function exists.
CHECK_LIBRARY_EXISTS (LIBRARY FUNCTION LOCATION VARIABLE)
LIBRARY - the name of the library you are looking for
FUNCTION - the name of the function
LOCATION - location where the library should be found
VARIABLE - variable to store the result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckStructHasMember
Check if the given struct or class has the specified member variable
CHECK_STRUCT_HAS_MEMBER (STRUCT MEMBER HEADER VARIABLE)
STRUCT - the name of the struct or class you are interested in
MEMBER - the member which existence you want to check
HEADER - the header(s) where the prototype should be declared
VARIABLE - variable to store the result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
Example: CHECK_STRUCT_HAS_MEMBER("struct timeval" tv_sec sys/select.h
HAVE_TIMEVAL_TV_SEC)
CheckSymbolExists
Check if the symbol exists in include files
CHECK_SYMBOL_EXISTS(SYMBOL FILES VARIABLE)
SYMBOL - symbol
FILES - include files to check
VARIABLE - variable to return result
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckTypeSize
Check sizeof a type
CHECK_TYPE_SIZE(TYPE VARIABLE [BUILTIN_TYPES_ONLY])
Check if the type exists and determine size of type. if the type
exists, the size will be stored to the variable. This also calls
check_include_file for sys/types.h stdint.h and stddef.h, setting
HAVE_SYS_TYPES_H, HAVE_STDINT_H, and HAVE_STDDEF_H. This is because
many types are stored in these include files.
VARIABLE - variable to store size if the type exists.
HAVE_${VARIABLE} - does the variable exists or not
BUILTIN_TYPES_ONLY - The third argument is optional and if
it is set to the string BUILTIN_TYPES_ONLY
this macro will not check for any header files.
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
CheckVariableExists
Check if the variable exists.
CHECK_VARIABLE_EXISTS(VAR VARIABLE)
VAR - the name of the variable
VARIABLE - variable to store the result
This macro is only for C variables.
The following variables may be set before calling this macro to modify
the way the check is run:
CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_LIBRARIES = list of libraries to link
Dart
Configure a project for testing with CTest or old Dart Tcl Client
This file is the backwards-compatibility version of the CTest module.
It supports using the old Dart 1 Tcl client for driving dashboard
submissions as well as testing with CTest. This module should be
included in the CMakeLists.txt file at the top of a project. Typical
usage:
INCLUDE(Dart)
IF(BUILD_TESTING)
# ... testing related CMake code ...
ENDIF(BUILD_TESTING)
The BUILD_TESTING option is created by the Dart module to determine
whether testing support should be enabled. The default is ON.
Documentation
DocumentationVTK.cmake
This file provides support for the VTK documentation framework. It
relies on several tools (Doxygen, Perl, etc).
FeatureSummary
Macros for generating a summary of enabled/disabled features
PRINT_ENABLED_FEATURES()
Print a summary of all enabled features. By default all successfull
FIND_PACKAGE() calls will appear here, except the ones which used the QUIET keyword.
Additional features can be added by appending an entry to the global ENABLED_FEATURES
property. If SET_FEATURE_INFO() is used for that feature, the output will be much
more informative.
PRINT_DISABLED_FEATURES()
Same as PRINT_ENABLED_FEATURES(), but for disabled features. It can be extended
the same way by adding to the global property DISABLED_FEATURES.
SET_FEATURE_INFO(NAME DESCRIPTION [URL [COMMENT] ] )
Use this macro to set up information about the named feature, which will
then be displayed by PRINT_ENABLED/DISABLED_FEATURES().
Example: SET_FEATURE_INFO(LibXml2 "XML processing library." "http://xmlsoft.org/")
FindASPELL
Try to find ASPELL
Once done this will define
ASPELL_FOUND - system has ASPELL
ASPELL_INCLUDE_DIR - the ASPELL include directory
ASPELL_LIBRARIES - The libraries needed to use ASPELL
ASPELL_DEFINITIONS - Compiler switches required for using ASPELL
FindAVIFile
Locate AVIFILE library and include paths
AVIFILE (http://avifile.sourceforge.net/)is a set of libraries for
i386 machines to use various AVI codecs. Support is limited beyond
Linux. Windows provides native AVI support, and so doesn't need this
library. This module defines
AVIFILE_INCLUDE_DIR, where to find avifile.h , etc.
AVIFILE_LIBRARIES, the libraries to link against
AVIFILE_DEFINITIONS, definitions to use when compiling
AVIFILE_FOUND, If false, don't try to use AVIFILE
FindBLAS
Find BLAS library
This module finds an installed fortran library that implements the
BLAS linear-algebra interface (see http://www.netlib.org/blas/). The
list of libraries searched for is taken from the autoconf macro file,
acx_blas.m4 (distributed at
http://ac-archive.sourceforge.net/ac-archive/acx_blas.html).
This module sets the following variables:
BLAS_FOUND - set to true if a library implementing the BLAS interface
is found
BLAS_LINKER_FLAGS - uncached list of required linker flags (excluding -l
and -L).
BLAS_LIBRARIES - uncached list of libraries (using full path name) to
link against to use BLAS
BLAS95_LIBRARIES - uncached list of libraries (using full path name) # to link against to use BLAS95 interface
FindBZip2
Try to find BZip2
Once done this will define
BZIP2_FOUND - system has BZip2
BZIP2_INCLUDE_DIR - the BZip2 include directory
BZIP2_LIBRARIES - Link these to use BZip2
BZIP2_DEFINITIONS - Compiler switches required for using BZip2
BZIP2_NEED_PREFIX - this is set if the functions are prefixed with BZ2_
FindBoost
Try to find Boost include dirs and libraries
Usage of this module as follows:
SET(Boost_USE_STATIC_LIBS ON)
SET(Boost_USE_MULTITHREAD OFF)
FIND_PACKAGE( Boost 1.34.1 COMPONENTS date_time filesystem iostreams ... )
The Boost_ADDITIONAL_VERSIONS variable can be used to specify a list
of boost version numbers that should be taken into account when
searching for the libraries. Unfortunately boost puts the version
number into the actual filename for the libraries, so this might be
needed in the future when new Boost versions are released.
Currently this module searches for the following version numbers:
1.33, 1.33.0, 1.33.1, 1.34, 1.34.0, 1.34.1, 1.35, 1.35.0, 1.35.1,
1.36.0, 1.36.1
The components list needs to be the actual names of boost libraries,
that is the part of the actual library files that differ on different
libraries. So its "date_time" for "libboost_date_time...". Anything
else will result in errors
You can provide a minimum version number that should be used. If you
provide this version number and specify the REQUIRED attribute, this
module will fail if it can't find the specified or a later version.
If you specify a version number this is automatically put into the
considered list of version numbers and thus doesn't need to be
specified in the Boost_ADDITIONAL_VERSIONS variable
Variables used by this module, they can change the default behaviour
and need to be set before calling find_package:
Boost_USE_MULTITHREAD Can be set to OFF to use the non-multithreaded
boost libraries. Defaults to ON.
Boost_USE_STATIC_LIBS Can be set to ON to force the use of the static
boost libraries. Defaults to OFF.
Boost_ADDITIONAL_VERSIONS A list of version numbers to use for searching
the boost include directory. The default list
of version numbers is:
1.33, 1.33.0, 1.33.1, 1.34, 1.34.0, 1.34.1,
1.35, 1.35.0, 1.35.1, 1.36.0, 1.36.1
If you want to look for an older or newer
version set this variable to a list of
strings, where each string contains a number, i.e.
SET(Boost_ADDITIONAL_VERSIONS "0.99.0" "1.35.0")
BOOST_ROOT Preferred installation prefix for searching for Boost,
set this if the module has problems finding the proper Boost installation
BOOST_INCLUDEDIR Set this to the include directory of Boost, if the
module has problems finding the proper Boost installation
BOOST_LIBRARYDIR Set this to the lib directory of Boost, if the
module has problems finding the proper Boost installation
The last three variables are available also as environment variables
Variables defined by this module:
Boost_FOUND System has Boost, this means the include dir was found,
as well as all the libraries specified in the COMPONENTS list
Boost_INCLUDE_DIRS Boost include directories, not cached
Boost_INCLUDE_DIR This is almost the same as above, but this one is cached and may be
modified by advanced users
Boost_LIBRARIES Link these to use the Boost libraries that you specified, not cached
Boost_LIBRARY_DIRS The path to where the Boost library files are.
Boost_VERSION The version number of the boost libraries that have been found,
same as in version.hpp from Boost
Boost_LIB_VERSION The version number in filename form as its appended to the library filenames
Boost_MAJOR_VERSION major version number of boost
Boost_MINOR_VERSION minor version number of boost
Boost_SUBMINOR_VERSION subminor version number of boost
Boost_LIB_DIAGNOSTIC_DEFINITIONS Only set on windows. Can be used with add_definitions
to print diagnostic information about the automatic
linking done on windows.
FindCABLE
Find CABLE
This module finds if CABLE is installed and determines where the
include files and libraries are. This code sets the following
variables:
CABLE the path to the cable executable
CABLE_TCL_LIBRARY the path to the Tcl wrapper library
CABLE_INCLUDE_DIR the path to the include directory
To build Tcl wrappers, you should add shared library and link it to
${CABLE_TCL_LIBRARY}. You should also add ${CABLE_INCLUDE_DIR} as an
include directory.
FindCURL
Find curl
Find the native CURL headers and libraries.
CURL_INCLUDE_DIRS - where to find curl/curl.h, etc.
CURL_LIBRARIES - List of libraries when using curl.
CURL_FOUND - True if curl found.
FindCVS
The module defines the following variables:
CVS_EXECUTABLE - path to cvs command line client
CVS_FOUND - true if the command line client was found
Example usage:
find_package(CVS)
if(CVS_FOUND)
message("CVS found: ${CVS_EXECUTABLE}")
endif(CVS_FOUND)
FindCups
Try to find the Cups printing system
Once done this will define
CUPS_FOUND - system has Cups
CUPS_INCLUDE_DIR - the Cups include directory
CUPS_LIBRARIES - Libraries needed to use Cups
Set CUPS_REQUIRE_IPP_DELETE_ATTRIBUTE to TRUE if you need a version which
features this function (i.e. at least 1.1.19)
FindCurses
Find the curses include file and library
CURSES_FOUND - system has Curses
CURSES_INCLUDE_DIR - the Curses include directory
CURSES_LIBRARIES - The libraries needed to use Curses
CURSES_HAVE_CURSES_H - true if curses.h is available
CURSES_HAVE_NCURSES_H - true if ncurses.h is available
CURSES_HAVE_NCURSES_NCURSES_H - true if ncurses/ncurses.h is available
CURSES_HAVE_NCURSES_CURSES_H - true if ncurses/curses.h is available
CURSES_LIBRARY - set for backwards compatibility with 2.4 CMake
Set CURSES_NEED_NCURSES to TRUE before the FIND_PACKAGE() command if
NCurses functionality is required.
FindCygwin
this module looks for Cygwin
FindDCMTK
find DCMTK libraries
FindDart
Find DART
This module looks for the dart testing software and sets DART_ROOT to
point to where it found it.
FindDoxygen
This module looks for Doxygen and the path to Graphviz's dot
Doxygen is a documentation generation tool see http://www.doxygen.org
With the OS X GUI version, it likes to be installed to /Applications
and it contains the doxygen executable in the bundle. In the versions
I've seen, it is located in Resources, but in general, more often
binaries are located in MacOS. This code sets the following
variables:
DOXYGEN_EXECUTABLE = The path to the doxygen command.
DOXYGEN_DOT_EXECUTABLE = The path to the dot program used by doxygen.
DOXYGEN_DOT_PATH = The path to dot not including the executable
DOXYGEN = same as DOXYGEN_EXECUTABLE for backwards compatibility
DOT = same as DOXYGEN_DOT_EXECUTABLE for backwards compatibility
FindEXPAT
Find expat
Find the native EXPAT headers and libraries.
EXPAT_INCLUDE_DIRS - where to find expat.h, etc.
EXPAT_LIBRARIES - List of libraries when using expat.
EXPAT_FOUND - True if expat found.
FindFLTK
Find the native FLTK includes and library
The following settings are defined
FLTK_FLUID_EXECUTABLE, where to find the Fluid tool
FLTK_WRAP_UI, This enables the FLTK_WRAP_UI command
FLTK_INCLUDE_DIR, where to find include files
FLTK_LIBRARIES, list of fltk libraries
FLTK_FOUND, Don't use FLTK if false.
The following settings should not be used in general.
FLTK_BASE_LIBRARY = the full path to fltk.lib
FLTK_GL_LIBRARY = the full path to fltk_gl.lib
FLTK_FORMS_LIBRARY = the full path to fltk_forms.lib
FLTK_IMAGES_LIBRARY = the full path to fltk_images.lib
FindFLTK2
Find the native FLTK2 includes and library
The following settings are defined
FLTK2_FLUID_EXECUTABLE, where to find the Fluid tool
FLTK2_WRAP_UI, This enables the FLTK2_WRAP_UI command
FLTK2_INCLUDE_DIR, where to find include files
FLTK2_LIBRARIES, list of fltk2 libraries
FLTK2_FOUND, Don't use FLTK2 if false.
The following settings should not be used in general.
FLTK2_BASE_LIBRARY = the full path to fltk2.lib
FLTK2_GL_LIBRARY = the full path to fltk2_gl.lib
FLTK2_IMAGES_LIBRARY = the full path to fltk2_images.lib
FindFreetype
Locate FreeType library
This module defines
FREETYPE_LIBRARIES, the library to link against
FREETYPE_FOUND, if false, do not try to link to FREETYPE
FREETYPE_INCLUDE_DIRS, where to find headers.
This is the concatenation of the paths:
FREETYPE_INCLUDE_DIR_ft2build
FREETYPE_INCLUDE_DIR_freetype2
$FREETYPE_DIR is an environment variable that would correspond to the
./configure --prefix=$FREETYPE_DIR used in building FREETYPE.
FindGCCXML
Find the GCC-XML front-end executable.
FindGDAL
Locate gdal This module defines GDAL_LIBRARY GDAL_FOUND, if false, do
not try to link to gdal GDAL_INCLUDE_DIR, where to find the headers
$GDALDIR is an environment variable that would correspond to the
./configure --prefix=$GDAL_DIR used in building gdal.
Created by Eric Wing. I'm not a gdal user, but OpenSceneGraph uses it
for osgTerrain so I whipped this module together for completeness. I
actually don't know the conventions or where files are typically
placed in distros. Any real gdal users are encouraged to correct this
(but please don't break the OS X framework stuff when doing so which
is what usually seems to happen).
FindGIF
This module defines GIF_LIBRARIES - libraries to link to in order to
use GIF GIF_FOUND, if false, do not try to link GIF_INCLUDE_DIR, where
to find the headers
$GIF_DIR is an environment variable that would correspond to the
./configure --prefix=$GIF_DIR
FindGLUT
try to find glut library and include files
GLUT_INCLUDE_DIR, where to find GL/glut.h, etc.
GLUT_LIBRARIES, the libraries to link against
GLUT_FOUND, If false, do not try to use GLUT.
Also defined, but not for general use are:
GLUT_glut_LIBRARY = the full path to the glut library.
GLUT_Xmu_LIBRARY = the full path to the Xmu library.
GLUT_Xi_LIBRARY = the full path to the Xi Library.
FindGTK
try to find GTK (and glib) and GTKGLArea
GTK_INCLUDE_DIR - Directories to include to use GTK
GTK_LIBRARIES - Files to link against to use GTK
GTK_FOUND - GTK was found
GTK_GL_FOUND - GTK's GL features were found
FindGettext
Find GNU gettext tools
This module looks for the GNU gettext tools. This module defines the
following values:
GETTEXT_MSGMERGE_EXECUTABLE: the full path to the msgmerge tool.
GETTEXT_MSGFMT_EXECUTABLE: the full path to the msgfmt tool.
GETTEXT_FOUND: True if gettext has been found.
Additionally it provides the following macros:
GETTEXT_CREATE_TRANSLATIONS ( outputFile [ALL] file1 ... fileN )
This will create a target "translations" which will convert the
given input po files into the binary output mo file. If the
ALL option is used, the translations will also be created when
building the default target.
FindGnuplot
this module looks for gnuplot
Once done this will define
GNUPLOT_FOUND - system has Gnuplot
GNUPLOT_EXECUTABLE - the Gnuplot executable
FindHSPELL
Try to find HSPELL
Once done this will define
HSPELL_FOUND - system has HSPELL
HSPELL_INCLUDE_DIR - the HSPELL include directory
HSPELL_LIBRARIES - The libraries needed to use HSPELL
HSPELL_DEFINITIONS - Compiler switches required for using HSPELL
FindHTMLHelp
This module looks for Microsoft HTML Help Compiler
It defines:
HTML_HELP_COMPILER : full path to the Compiler (hhc.exe)
HTML_HELP_INCLUDE_PATH : include path to the API (htmlhelp.h)
HTML_HELP_LIBRARY : full path to the library (htmlhelp.lib)
FindITK
Find an ITK installation or build tree.
FindImageMagick
Find Image Magick
This module finds if ImageMagick tools are installed and determines
where the executables are. This code sets the following variables:
IMAGEMAGICK_CONVERT_EXECUTABLE =
the full path to the 'convert' utility
IMAGEMAGICK_MOGRIFY_EXECUTABLE =
the full path to the 'mogrify' utility
IMAGEMAGICK_IMPORT_EXECUTABLE =
the full path to the 'import' utility
IMAGEMAGICK_MONTAGE_EXECUTABLE =
the full path to the 'montage' utility
IMAGEMAGICK_COMPOSITE_EXECUTABLE =
the full path to the 'composite' utility
FindJNI
Find JNI java libraries.
This module finds if Java is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
JAVA_AWT_LIB_PATH = the path to the jawt library
JAVA_JVM_LIB_PATH = the path to the jvm library
JAVA_INCLUDE_PATH = the include path to jni.h
JAVA_INCLUDE_PATH2 = the include path to jni_md.h
JAVA_AWT_INCLUDE_PATH = the include path to jawt.h
FindJPEG
Find JPEG
Find the native JPEG includes and library This module defines
JPEG_INCLUDE_DIR, where to find jpeglib.h, etc.
JPEG_LIBRARIES, the libraries needed to use JPEG.
JPEG_FOUND, If false, do not try to use JPEG.
also defined, but not for general use are
JPEG_LIBRARY, where to find the JPEG library.
FindJasper
Try to find the Jasper JPEG2000 library
Once done this will define
JASPER_FOUND - system has Jasper
JASPER_INCLUDE_DIR - the Jasper include directory
JASPER_LIBRARIES - The libraries needed to use Jasper
FindJava
Find Java
This module finds if Java is installed and determines where the
include files and libraries are. This code sets the following
variables:
JAVA_RUNTIME = the full path to the Java runtime
JAVA_COMPILE = the full path to the Java compiler
JAVA_ARCHIVE = the full path to the Java archiver
FindKDE3
Find the KDE3 include and library dirs, KDE preprocessors and define a
some macros
This module defines the following variables:
KDE3_DEFINITIONS - compiler definitions required for compiling KDE software
KDE3_INCLUDE_DIR - the KDE include directory
KDE3_INCLUDE_DIRS - the KDE and the Qt include directory, for use with INCLUDE_DIRECTORIES()
KDE3_LIB_DIR - the directory where the KDE libraries are installed, for use with LINK_DIRECTORIES()
QT_AND_KDECORE_LIBS - this contains both the Qt and the kdecore library
KDE3_DCOPIDL_EXECUTABLE - the dcopidl executable
KDE3_DCOPIDL2CPP_EXECUTABLE - the dcopidl2cpp executable
KDE3_KCFGC_EXECUTABLE - the kconfig_compiler executable
KDE3_FOUND - set to TRUE if all of the above has been found
The following user adjustable options are provided:
KDE3_BUILD_TESTS - enable this to build KDE testcases
It also adds the following macros (from KDE3Macros.cmake) SRCS_VAR is
always the variable which contains the list of source files for your
application or library.
KDE3_AUTOMOC(file1 ... fileN)
Call this if you want to have automatic moc file handling.
This means if you include "foo.moc" in the source file foo.cpp
a moc file for the header foo.h will be created automatically.
You can set the property SKIP_AUTOMAKE using SET_SOURCE_FILES_PROPERTIES()
to exclude some files in the list from being processed.
KDE3_ADD_MOC_FILES(SRCS_VAR file1 ... fileN )
If you don't use the KDE3_AUTOMOC() macro, for the files
listed here moc files will be created (named "foo.moc.cpp")
KDE3_ADD_DCOP_SKELS(SRCS_VAR header1.h ... headerN.h )
Use this to generate DCOP skeletions from the listed headers.
KDE3_ADD_DCOP_STUBS(SRCS_VAR header1.h ... headerN.h )
Use this to generate DCOP stubs from the listed headers.
KDE3_ADD_UI_FILES(SRCS_VAR file1.ui ... fileN.ui )
Use this to add the Qt designer ui files to your application/library.
KDE3_ADD_KCFG_FILES(SRCS_VAR file1.kcfgc ... fileN.kcfgc )
Use this to add KDE kconfig compiler files to your application/library.
KDE3_INSTALL_LIBTOOL_FILE(target)
This will create and install a simple libtool file for the given target.
KDE3_ADD_EXECUTABLE(name file1 ... fileN )
Currently identical to ADD_EXECUTABLE(), may provide some advanced features in the future.
KDE3_ADD_KPART(name [WITH_PREFIX] file1 ... fileN )
Create a KDE plugin (KPart, kioslave, etc.) from the given source files.
If WITH_PREFIX is given, the resulting plugin will have the prefix "lib", otherwise it won't.
It creates and installs an appropriate libtool la-file.
KDE3_ADD_KDEINIT_EXECUTABLE(name file1 ... fileN )
Create a KDE application in the form of a module loadable via kdeinit.
A library named kdeinit_<name> will be created and a small executable which links to it.
The option KDE3_ENABLE_FINAL to enable all-in-one compilation is no
longer supported.
Author: Alexander Neundorf <neundorf@kde.org>
FindKDE4
Find KDE4 and provide all necessary variables and macros to compile
software for it. It looks for KDE 4 in the following directories in
the given order:
CMAKE_INSTALL_PREFIX
KDEDIRS
/opt/kde4
Please look in FindKDE4Internal.cmake and KDE4Macros.cmake for more
information. They are installed with the KDE 4 libraries in
$KDEDIRS/share/apps/cmake/modules/.
Author: Alexander Neundorf <neundorf@kde.org>
FindLAPACK
Find LAPACK library
This module finds an installed fortran library that implements the
LAPACK linear-algebra interface (see http://www.netlib.org/lapack/).
The approach follows that taken for the autoconf macro file,
acx_lapack.m4 (distributed at
http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
This module sets the following variables:
LAPACK_FOUND - set to true if a library implementing the LAPACK interface
is found
LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
and -L).
LAPACK_LIBRARIES - uncached list of libraries (using full path name) to
link against to use LAPACK
LAPACK95_LIBRARIES - uncached list of libraries (using full path name) to
link against to use LAPACK95
FindLATEX
Find Latex
This module finds if Latex is installed and determines where the
executables are. This code sets the following variables:
LATEX_COMPILER: path to the LaTeX compiler
PDFLATEX_COMPILER: path to the PdfLaTeX compiler
BIBTEX_COMPILER: path to the BibTeX compiler
MAKEINDEX_COMPILER: path to the MakeIndex compiler
DVIPS_CONVERTER: path to the DVIPS converter
PS2PDF_CONVERTER: path to the PS2PDF converter
LATEX2HTML_CONVERTER: path to the LaTeX2Html converter
FindLibXml2
Try to find LibXml2
Once done this will define
LIBXML2_FOUND - system has LibXml2
LIBXML2_INCLUDE_DIR - the LibXml2 include directory
LIBXML2_LIBRARIES - the libraries needed to use LibXml2
LIBXML2_DEFINITIONS - Compiler switches required for using LibXml2
FindLibXslt
Try to find LibXslt
Once done this will define
LIBXSLT_FOUND - system has LibXslt
LIBXSLT_INCLUDE_DIR - the LibXslt include directory
LIBXSLT_LIBRARIES - Link these to LibXslt
LIBXSLT_DEFINITIONS - Compiler switches required for using LibXslt
FindLua50
Locate Lua library This module defines
LUA_LIBRARIES, both lua and lualib
LUA_FOUND, if false, do not try to link to Lua
LUA_INCLUDE_DIR, where to find lua.h and lualib.h (and probably lauxlib.h)
Note that the expected include convention is
#include "lua.h"
and not
#include <lua/lua.h>
This is because, the lua location is not standardized and may exist in
locations other than lua/
FindLua51
Locate Lua library This module defines
LUA_LIBRARIES
LUA_FOUND, if false, do not try to link to Lua
LUA_INCLUDE_DIR, where to find lua.h
Note that the expected include convention is
#include "lua.h"
and not
#include <lua/lua.h>
This is because, the lua location is not standardized and may exist in
locations other than lua/
FindMFC
Find MFC on Windows
Find the native MFC - i.e. decide if this is an MS VC box.
MFC_FOUND - Was MFC support found
You don't need to include anything or link anything to use it.
FindMPEG
Find the native MPEG includes and library
This module defines
MPEG_INCLUDE_DIR, where to find MPEG.h, etc.
MPEG_LIBRARIES, the libraries required to use MPEG.
MPEG_FOUND, If false, do not try to use MPEG.
also defined, but not for general use are
MPEG_mpeg2_LIBRARY, where to find the MPEG library.
MPEG_vo_LIBRARY, where to find the vo library.
FindMPEG2
Find the native MPEG2 includes and library
This module defines
MPEG2_INCLUDE_DIR, path to mpeg2dec/mpeg2.h, etc.
MPEG2_LIBRARIES, the libraries required to use MPEG2.
MPEG2_FOUND, If false, do not try to use MPEG2.
also defined, but not for general use are
MPEG2_mpeg2_LIBRARY, where to find the MPEG2 library.
MPEG2_vo_LIBRARY, where to find the vo library.
FindMPI
Message Passing Interface (MPI) module.
The Message Passing Interface (MPI) is a library used to write
high-performance parallel applications that use message passing, and
is typically deployed on a cluster. MPI is a standard interface
(defined by the MPI forum) for which many implementations are
available. All of these implementations have somewhat different
compilation approaches (different include paths, libraries to link
against, etc.), and this module tries to smooth out those differences.
This module will set the following variables:
MPI_FOUND TRUE if we have found MPI
MPI_COMPILE_FLAGS Compilation flags for MPI programs
MPI_INCLUDE_PATH Include path(s) for MPI header
MPI_LINK_FLAGS Linking flags for MPI programs
MPI_LIBRARY First MPI library to link against (cached)
MPI_EXTRA_LIBRARY Extra MPI libraries to link against (cached)
MPI_LIBRARIES All libraries to link MPI programs against
MPIEXEC Executable for running MPI programs
MPIEXEC_NUMPROC_FLAG Flag to pass to MPIEXEC before giving it the
number of processors to run on
MPIEXEC_PREFLAGS Flags to pass to MPIEXEC directly before the
executable to run.
MPIEXEC_POSTFLAGS Flags to pass to MPIEXEC after all other flags.
This module will attempt to auto-detect these settings, first by
looking for a MPI compiler, which many MPI implementations provide as
a pass-through to the native compiler to simplify the compilation of
MPI programs. The MPI compiler is stored in the cache variable
MPI_COMPILER, and will attempt to look for commonly-named drivers
mpic++, mpicxx, mpiCC, or mpicc. If the compiler driver is found and
recognized, it will be used to set all of the module variables. To
skip this auto-detection, set MPI_LIBRARY and MPI_INCLUDE_PATH in the
CMake cache.
If no compiler driver is found or the compiler driver is not
recognized, this module will then search for common include paths and
library names to try to detect MPI.
If CMake initially finds a different MPI than was intended, and you
want to use the MPI compiler auto-detection for a different MPI
implementation, set MPI_COMPILER to the MPI compiler driver you want
to use (e.g., mpicxx) and then set MPI_LIBRARY to the string
MPI_LIBRARY-NOTFOUND. When you re-configure, auto-detection of MPI
will run again with the newly-specified MPI_COMPILER.
When using MPIEXEC to execute MPI applications, you should typically
use all of the MPIEXEC flags as follows:
${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} PROCS ${MPIEXEC_PREFLAGS} EXECUTABLE
${MPIEXEC_POSTFLAGS} ARGS
where PROCS is the number of processors on which to execute the
program, EXECUTABLE is the MPI program, and ARGS are the arguments to
pass to the MPI program.
FindMatlab
this module looks for Matlab
Defines:
MATLAB_INCLUDE_DIR: include path for mex.h, engine.h
MATLAB_LIBRARIES: required libraries: libmex, etc
MATLAB_MEX_LIBRARY: path to libmex.lib
MATLAB_MX_LIBRARY: path to libmx.lib
MATLAB_ENG_LIBRARY: path to libeng.lib
FindMotif
Try to find Motif (or lesstif)
Once done this will define:
MOTIF_FOUND - system has MOTIF
MOTIF_INCLUDE_DIR - incude paths to use Motif
MOTIF_LIBRARIES - Link these to use Motif
FindOpenAL
Locate OpenAL This module defines OPENAL_LIBRARY OPENAL_FOUND, if
false, do not try to link to OpenAL OPENAL_INCLUDE_DIR, where to find
the headers
$OPENALDIR is an environment variable that would correspond to the
./configure --prefix=$OPENALDIR used in building OpenAL.
Created by Eric Wing. This was influenced by the FindSDL.cmake
module.
FindOpenGL
Try to find OpenGL
Once done this will define
OPENGL_FOUND - system has OpenGL
OPENGL_XMESA_FOUND - system has XMESA
OPENGL_GLU_FOUND - system has GLU
OPENGL_INCLUDE_DIR - the GL include directory
OPENGL_LIBRARIES - Link these to use OpenGL and GLU
If you want to use just GL you can use these values
OPENGL_gl_LIBRARY - Path to OpenGL Library
OPENGL_glu_LIBRARY - Path to GLU Library
On OSX default to using the framework version of opengl People will
have to change the cache values of OPENGL_glu_LIBRARY and
OPENGL_gl_LIBRARY to use OpenGL with X11 on OSX
FindOpenSSL
Try to find the OpenSSL encryption library
Once done this will define
OPENSSL_FOUND - system has the OpenSSL library
OPENSSL_INCLUDE_DIR - the OpenSSL include directory
OPENSSL_LIBRARIES - The libraries needed to use OpenSSL
FindOpenThreads
OpenThreads is a C++ based threading library. Its largest userbase
seems to OpenSceneGraph so you might notice I accept OSGDIR as an
environment path. I consider this part of the Findosg* suite used to
find OpenSceneGraph components. Each component is separate and you
must opt in to each module.
Locate OpenThreads This module defines OPENTHREADS_LIBRARY
OPENTHREADS_FOUND, if false, do not try to link to OpenThreads
OPENTHREADS_INCLUDE_DIR, where to find the headers
$OPENTHREADS_DIR is an environment variable that would correspond to
the ./configure --prefix=$OPENTHREADS_DIR used in building osg.
Created by Eric Wing.
FindPHP4
Find PHP4
This module finds if PHP4 is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
PHP4_INCLUDE_PATH = path to where php.h can be found
PHP4_EXECUTABLE = full path to the php4 binary
FindPNG
Find the native PNG includes and library
This module defines
PNG_INCLUDE_DIR, where to find png.h, etc.
PNG_LIBRARIES, the libraries to link against to use PNG.
PNG_DEFINITIONS - You should ADD_DEFINITONS(${PNG_DEFINITIONS}) before compiling code that includes png library files.
PNG_FOUND, If false, do not try to use PNG.
also defined, but not for general use are
PNG_LIBRARY, where to find the PNG library.
None of the above will be defined unles zlib can be found. PNG
depends on Zlib
FindPackageHandleStandardArgs
FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom failure
message") VAR1 ... )
This macro is intended to be used in FindXXX.cmake modules files.
It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and
it also sets the <UPPERCASED_NAME>_FOUND variable.
The package is found if all variables listed are TRUE.
Example:
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)
LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and
LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
If it is not found and REQUIRED was used, it fails with FATAL_ERROR,
independent whether QUIET was used or not.
If it is found, the location is reported using the VAR1 argument, so
here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out.
If the second argument is DEFAULT_MSG, the message in the failure case will
be "Could NOT find LibXml2", if you don't like this message you can specify
your own custom failure message there.
FindPackageMessage
FIND_PACKAGE_MESSAGE(<name> "message for user" "find result details")
This macro is intended to be used in FindXXX.cmake modules files. It
will print a message once for each unique find result. This is useful
for telling the user where a package was found. The first argument
specifies the name (XXX) of the package. The second argument
specifies the message to display. The third argument lists details
about the find result so that if they change the message will be
displayed again. The macro also obeys the QUIET argument to the
find_package command.
Example:
IF(X11_FOUND)
FIND_PACKAGE_MESSAGE(X11 "Found X11: ${X11_X11_LIB}"
"[${X11_X11_LIB}][${X11_INCLUDE_DIR}]")
ELSE(X11_FOUND)
...
ENDIF(X11_FOUND)
FindPerl
Find perl
this module looks for Perl
PERL_EXECUTABLE - the full path to perl
PERL_FOUND - If false, don't attempt to use perl.
FindPerlLibs
Find Perl libraries
This module finds if PERL is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
PERL_INCLUDE_PATH = path to where perl.h is found
PERL_EXECUTABLE = full path to the perl binary
FindPhysFS
Locate PhysFS library This module defines PHYSFS_LIBRARY, the name of
the library to link against PHYSFS_FOUND, if false, do not try to link
to PHYSFS PHYSFS_INCLUDE_DIR, where to find physfs.h
$PHYSFSDIR is an environment variable that would correspond to the
./configure --prefix=$PHYSFSDIR used in building PHYSFS.
Created by Eric Wing.
FindPike
Find Pike
This module finds if PIKE is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
PIKE_INCLUDE_PATH = path to where program.h is found
PIKE_EXECUTABLE = full path to the pike binary
FindPkgConfig
a pkg-config module for CMake
Usage:
pkg_check_modules(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
checks for all the given modules
pkg_search_module(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
checks for given modules and uses the first working one
When the 'REQUIRED' argument was set, macros will fail with an error
when module(s) could not be found
It sets the following variables:
PKG_CONFIG_FOUND ... true if pkg-config works on the system
PKG_CONFIG_EXECUTABLE ... pathname of the pkg-config program
<PREFIX>_FOUND ... set to 1 if module(s) exist
For the following variables two sets of values exist; first one is the
common one and has the given PREFIX. The second set contains flags
which are given out when pkgconfig was called with the '--static'
option.
<XPREFIX>_LIBRARIES ... only the libraries (w/o the '-l')
<XPREFIX>_LIBRARY_DIRS ... the paths of the libraries (w/o the '-L')
<XPREFIX>_LDFLAGS ... all required linker flags
<XPREFIX>_LDFLAGS_OTHER ... all other linker flags
<XPREFIX>_INCLUDE_DIRS ... the '-I' preprocessor flags (w/o the '-I')
<XPREFIX>_CFLAGS ... all required cflags
<XPREFIX>_CFLAGS_OTHER ... the other compiler flags
<XPREFIX> = <PREFIX> for common case
<XPREFIX> = <PREFIX>_STATIC for static linking
There are some special variables whose prefix depends on the count of
given modules. When there is only one module, <PREFIX> stays
unchanged. When there are multiple modules, the prefix will be
changed to <PREFIX>_<MODNAME>:
<XPREFIX>_VERSION ... version of the module
<XPREFIX>_PREFIX ... prefix-directory of the module
<XPREFIX>_INCLUDEDIR ... include-dir of the module
<XPREFIX>_LIBDIR ... lib-dir of the module
<XPREFIX> = <PREFIX> when |MODULES| == 1, else
<XPREFIX> = <PREFIX>_<MODNAME>
A <MODULE> parameter can have the following formats:
{MODNAME} ... matches any version
{MODNAME}>={VERSION} ... at least version <VERSION> is required
{MODNAME}={VERSION} ... exactly version <VERSION> is required
{MODNAME}<={VERSION} ... modules must not be newer than <VERSION>
Examples
pkg_check_modules (GLIB2 glib-2.0)
pkg_check_modules (GLIB2 glib-2.0>=2.10)
requires at least version 2.10 of glib2 and defines e.g.
GLIB2_VERSION=2.10.3
pkg_check_modules (FOO glib-2.0>=2.10 gtk+-2.0)
requires both glib2 and gtk2, and defines e.g.
FOO_glib-2.0_VERSION=2.10.3
FOO_gtk+-2.0_VERSION=2.8.20
pkg_check_modules (XRENDER REQUIRED xrender)
defines e.g.:
XRENDER_LIBRARIES=Xrender;X11
XRENDER_STATIC_LIBRARIES=Xrender;X11;pthread;Xau;Xdmcp
pkg_search_module (BAR libxml-2.0 libxml2 libxml>=2)
FindProducer
Though Producer isn't directly part of OpenSceneGraph, its primary
user is OSG so I consider this part of the Findosg* suite used to find
OpenSceneGraph components. You'll notice that I accept OSGDIR as an
environment path.
Each component is separate and you must opt in to each module. You
must also opt into OpenGL (and OpenThreads?) as these modules won't do
it for you. This is to allow you control over your own system piece
by piece in case you need to opt out of certain components or change
the Find behavior for a particular module (perhaps because the default
FindOpenGL.cmake module doesn't work with your system as an example).
If you want to use a more convenient module that includes everything,
use the FindOpenSceneGraph.cmake instead of the Findosg*.cmake
modules.
Locate Producer This module defines PRODUCER_LIBRARY PRODUCER_FOUND,
if false, do not try to link to Producer PRODUCER_INCLUDE_DIR, where
to find the headers
$PRODUCER_DIR is an environment variable that would correspond to the
./configure --prefix=$PRODUCER_DIR used in building osg.
Created by Eric Wing.
FindPythonInterp
Find python interpreter
This module finds if Python interpreter is installed and determines
where the executables are. This code sets the following variables:
PYTHONINTERP_FOUND - Was the Python executable found
PYTHON_EXECUTABLE - path to the Python interpreter
FindPythonLibs
Find python libraries
This module finds if Python is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
PYTHONLIBS_FOUND = have the Python libs been found
PYTHON_LIBRARIES = path to the python library
PYTHON_INCLUDE_PATH = path to where Python.h is found
PYTHON_DEBUG_LIBRARIES = path to the debug library
FindQt
Searches for all installed versions of QT.
This should only be used if your project can work with multiple
versions of QT. If not, you should just directly use FindQt4 or
FindQt3. If multiple versions of QT are found on the machine, then
The user must set the option DESIRED_QT_VERSION to the version they
want to use. If only one version of qt is found on the machine, then
the DESIRED_QT_VERSION is set to that version and the matching FindQt3
or FindQt4 module is included. Once the user sets DESIRED_QT_VERSION,
then the FindQt3 or FindQt4 module is included.
QT_REQUIRED if this is set to TRUE then if CMake can
not find QT4 or QT3 an error is raised
and a message is sent to the user.
DESIRED_QT_VERSION OPTION is created
QT4_INSTALLED is set to TRUE if qt4 is found.
QT3_INSTALLED is set to TRUE if qt3 is found.
FindQt3
Locate Qt include paths and libraries
This module defines:
QT_INCLUDE_DIR - where to find qt.h, etc.
QT_LIBRARIES - the libraries to link against to use Qt.
QT_DEFINITIONS - definitions to use when
compiling code that uses Qt.
QT_FOUND - If false, don't try to use Qt.
If you need the multithreaded version of Qt, set QT_MT_REQUIRED to
TRUE
Also defined, but not for general use are:
QT_MOC_EXECUTABLE, where to find the moc tool.
QT_UIC_EXECUTABLE, where to find the uic tool.
QT_QT_LIBRARY, where to find the Qt library.
QT_QTMAIN_LIBRARY, where to find the qtmain
library. This is only required by Qt3 on Windows.
FindQt4
Find QT 4
This module can be used to find Qt4. The most important issue is that
the Qt4 qmake is available via the system path. This qmake is then
used to detect basically everything else. This module defines a
number of key variables and macros. First is QT_USE_FILE which is the
path to a CMake file that can be included to compile Qt 4 applications
and libraries. By default, the QtCore and QtGui libraries are loaded.
This behavior can be changed by setting one or more of the following
variables to true before doing INCLUDE(${QT_USE_FILE}):
QT_DONT_USE_QTCORE
QT_DONT_USE_QTGUI
QT_USE_QT3SUPPORT
QT_USE_QTASSISTANT
QT_USE_QTDESIGNER
QT_USE_QTMOTIF
QT_USE_QTMAIN
QT_USE_QTNETWORK
QT_USE_QTNSPLUGIN
QT_USE_QTOPENGL
QT_USE_QTSQL
QT_USE_QTXML
QT_USE_QTSVG
QT_USE_QTTEST
QT_USE_QTUITOOLS
QT_USE_QTDBUS
QT_USE_QTSCRIPT
QT_USE_QTASSISTANTCLIENT
QT_USE_QTHELP
QT_USE_QTWEBKIT
QT_USE_QTXMLPATTERNS
QT_USE_PHONON
The file pointed to by QT_USE_FILE will set up your compile
environment by adding include directories, preprocessor defines, and
populate a QT_LIBRARIES variable containing all the Qt libraries and
their dependencies. Add the QT_LIBRARIES variable to your
TARGET_LINK_LIBRARIES.
Typical usage could be something like:
FIND_PACKAGE(Qt4)
SET(QT_USE_QTXML 1)
INCLUDE(${QT_USE_FILE})
ADD_EXECUTABLE(myexe main.cpp)
TARGET_LINK_LIBRARIES(myexe ${QT_LIBRARIES})
There are also some files that need processing by some Qt tools such
as moc and uic. Listed below are macros that may be used to process
those files.
macro QT4_WRAP_CPP(outfiles inputfile ... OPTIONS ...)
create moc code from a list of files containing Qt class with
the Q_OBJECT declaration. Options may be given to moc, such as those found
when executing "moc -help"
macro QT4_WRAP_UI(outfiles inputfile ... OPTIONS ...)
create code from a list of Qt designer ui files.
Options may be given to uic, such as those found
when executing "uic -help"
macro QT4_ADD_RESOURCES(outfiles inputfile ... OPTIONS ...)
create code from a list of Qt resource files.
Options may be given to rcc, such as those found
when executing "rcc -help"
macro QT4_GENERATE_MOC(inputfile outputfile )
creates a rule to run moc on infile and create outfile.
Use this if for some reason QT4_WRAP_CPP() isn't appropriate, e.g.
because you need a custom filename for the moc file or something similar.
macro QT4_AUTOMOC(sourcefile1 sourcefile2 ... )
This macro is still experimental.
It can be used to have moc automatically handled.
So if you have the files foo.h and foo.cpp, and in foo.h a
a class uses the Q_OBJECT macro, moc has to run on it. If you don't
want to use QT4_WRAP_CPP() (which is reliable and mature), you can insert
#include "foo.moc"
in foo.cpp and then give foo.cpp as argument to QT4_AUTOMOC(). This will the
scan all listed files at cmake-time for such included moc files and if it finds
them cause a rule to be generated to run moc at build time on the
accompanying header file foo.h.
If a source file has the SKIP_AUTOMOC property set it will be ignored by this macro.
macro QT4_ADD_DBUS_INTERFACE(outfiles interface basename)
create a the interface header and implementation files with the
given basename from the given interface xml file and add it to
the list of sources
macro QT4_ADD_DBUS_INTERFACES(outfiles inputfile ... )
create the interface header and implementation files
for all listed interface xml files
the name will be automatically determined from the name of the xml file
macro QT4_ADD_DBUS_ADAPTOR(outfiles xmlfile parentheader parentclassname [basename] )
create a dbus adaptor (header and implementation file) from the xml file
describing the interface, and add it to the list of sources. The adaptor
forwards the calls to a parent class, defined in parentheader and named
parentclassname. The name of the generated files will be
<basename>adaptor.{cpp,h} where basename is the basename of the xml file.
macro QT4_GENERATE_DBUS_INTERFACE( header [interfacename] )
generate the xml interface file from the given header.
If the optional argument interfacename is omitted, the name of the
interface file is constructed from the basename of the header with
the suffix .xml appended.
macro QT4_CREATE_TRANSLATION( qm_files sources ... ts_files ... )
out: qm_files
in: sources ts_files
generates commands to create .ts (vie lupdate) and .qm
(via lrelease) - files from sources. The ts files are
created and/or updated in the source tree (unless given with full paths).
The qm files are generated in the build tree.
Updating the translations can be done by adding the qm_files
to the source list of your library/executable, so they are
always updated, or by adding a custom target to control when
they get updated/generated.
macro QT4_ADD_TRANSLATION( qm_files ts_files ... )
out: qm_files
in: ts_files
generates commands to create .qm from .ts - files. The generated
filenames can be found in qm_files. The ts_files
must exists and are not updated in any way.
QT_FOUND If false, don't try to use Qt.
QT4_FOUND If false, don't try to use Qt 4.
QT_VERSION_MAJOR The major version of Qt found.
QT_VERSION_MINOR The minor version of Qt found.
QT_VERSION_PATCH The patch version of Qt found.
QT_EDITION Set to the edition of Qt (i.e. DesktopLight)
QT_EDITION_DESKTOPLIGHT True if QT_EDITION == DesktopLight
QT_QTCORE_FOUND True if QtCore was found.
QT_QTGUI_FOUND True if QtGui was found.
QT_QT3SUPPORT_FOUND True if Qt3Support was found.
QT_QTASSISTANT_FOUND True if QtAssistant was found.
QT_QTDBUS_FOUND True if QtDBus was found.
QT_QTDESIGNER_FOUND True if QtDesigner was found.
QT_QTDESIGNERCOMPONENTS True if QtDesignerComponents was found.
QT_QTMOTIF_FOUND True if QtMotif was found.
QT_QTNETWORK_FOUND True if QtNetwork was found.
QT_QTNSPLUGIN_FOUND True if QtNsPlugin was found.
QT_QTOPENGL_FOUND True if QtOpenGL was found.
QT_QTSQL_FOUND True if QtSql was found.
QT_QTXML_FOUND True if QtXml was found.
QT_QTSVG_FOUND True if QtSvg was found.
QT_QTSCRIPT_FOUND True if QtScript was found.
QT_QTTEST_FOUND True if QtTest was found.
QT_QTUITOOLS_FOUND True if QtUiTools was found.
QT_QTASSISTANTCLIENT_FOUND True if QtAssistantClient was found.
QT_QTHELP_FOUND True if QtHelp was found.
QT_QTWEBKIT_FOUND True if QtWebKit was found.
QT_QTXMLPATTERNS_FOUND True if QtXmlPatterns was found.
QT_PHONON_FOUND True if phonon was found.
QT_DEFINITIONS Definitions to use when compiling code that uses Qt.
You do not need to use this if you include QT_USE_FILE.
The QT_USE_FILE will also define QT_DEBUG and QT_NO_DEBUG
to fit your current build type. Those are not contained
in QT_DEFINITIONS.
QT_INCLUDES List of paths to all include directories of
Qt4 QT_INCLUDE_DIR and QT_QTCORE_INCLUDE_DIR are
always in this variable even if NOTFOUND,
all other INCLUDE_DIRS are
only added if they are found.
You do not need to use this if you include QT_USE_FILE.
Include directories for the Qt modules are listed here.
You do not need to use these variables if you include QT_USE_FILE.
QT_INCLUDE_DIR Path to "include" of Qt4
QT_QT_INCLUDE_DIR Path to "include/Qt"
QT_QT3SUPPORT_INCLUDE_DIR Path to "include/Qt3Support"
QT_QTASSISTANT_INCLUDE_DIR Path to "include/QtAssistant"
QT_QTCORE_INCLUDE_DIR Path to "include/QtCore"
QT_QTDESIGNER_INCLUDE_DIR Path to "include/QtDesigner"
QT_QTDESIGNERCOMPONENTS_INCLUDE_DIR Path to "include/QtDesigner"
QT_QTDBUS_INCLUDE_DIR Path to "include/QtDBus"
QT_QTGUI_INCLUDE_DIR Path to "include/QtGui"
QT_QTMOTIF_INCLUDE_DIR Path to "include/QtMotif"
QT_QTNETWORK_INCLUDE_DIR Path to "include/QtNetwork"
QT_QTNSPLUGIN_INCLUDE_DIR Path to "include/QtNsPlugin"
QT_QTOPENGL_INCLUDE_DIR Path to "include/QtOpenGL"
QT_QTSQL_INCLUDE_DIR Path to "include/QtSql"
QT_QTXML_INCLUDE_DIR Path to "include/QtXml"
QT_QTSVG_INCLUDE_DIR Path to "include/QtSvg"
QT_QTSCRIPT_INCLUDE_DIR Path to "include/QtScript"
QT_QTTEST_INCLUDE_DIR Path to "include/QtTest"
QT_QTASSISTANTCLIENT_INCLUDE_DIR Path to "include/QtAssistant"
QT_QTHELP_INCLUDE_DIR Path to "include/QtHelp"
QT_QTWEBKIT_INCLUDE_DIR Path to "include/QtWebKit"
QT_QTXMLPATTERNS_INCLUDE_DIR Path to "include/QtXmlPatterns"
QT_PHONON_INCLUDE_DIR Path to "include/phonon"
QT_LIBRARY_DIR Path to "lib" of Qt4
QT_PLUGINS_DIR Path to "plugins" for Qt4
The Qt toolkit may contain both debug and release libraries. In that
case, the following library variables will contain both. You do not
need to use these variables if you include QT_USE_FILE, and use
QT_LIBRARIES.
QT_QT3SUPPORT_LIBRARY The Qt3Support library
QT_QTASSISTANT_LIBRARY The QtAssistant library
QT_QTCORE_LIBRARY The QtCore library
QT_QTDBUS_LIBRARY The QtDBus library
QT_QTDESIGNER_LIBRARY The QtDesigner library
QT_QTDESIGNERCOMPONENTS_LIBRARY The QtDesignerComponents library
QT_QTGUI_LIBRARY The QtGui library
QT_QTMOTIF_LIBRARY The QtMotif library
QT_QTNETWORK_LIBRARY The QtNetwork library
QT_QTNSPLUGIN_LIBRARY The QtNsPLugin library
QT_QTOPENGL_LIBRARY The QtOpenGL library
QT_QTSQL_LIBRARY The QtSql library
QT_QTXML_LIBRARY The QtXml library
QT_QTSVG_LIBRARY The QtSvg library
QT_QTSCRIPT_LIBRARY The QtScript library
QT_QTTEST_LIBRARY The QtTest library
QT_QTMAIN_LIBRARY The qtmain library for Windows
QT_QTUITOOLS_LIBRARY The QtUiTools library
QT_QTASSISTANTCLIENT_LIBRARY The QtAssistantClient library
QT_QTHELP_LIBRARY The QtHelp library
QT_QTWEBKIT_LIBRARY The QtWebKit library
QT_QTXMLPATTERNS_LIBRARY The QtXmlPatterns library
QT_PHONON_LIBRARY The phonon library
also defined, but NOT for general use are
QT_MOC_EXECUTABLE Where to find the moc tool.
QT_UIC_EXECUTABLE Where to find the uic tool.
QT_UIC3_EXECUTABLE Where to find the uic3 tool.
QT_RCC_EXECUTABLE Where to find the rcc tool
QT_DBUSCPP2XML_EXECUTABLE Where to find the qdbuscpp2xml tool.
QT_DBUSXML2CPP_EXECUTABLE Where to find the qdbusxml2cpp tool.
QT_LUPDATE_EXECUTABLE Where to find the lupdate tool.
QT_LRELEASE_EXECUTABLE Where to find the lrelease tool.
QT_DOC_DIR Path to "doc" of Qt4
QT_MKSPECS_DIR Path to "mkspecs" of Qt4
These are around for backwards compatibility they will be set
QT_WRAP_CPP Set true if QT_MOC_EXECUTABLE is found
QT_WRAP_UI Set true if QT_UIC_EXECUTABLE is found
These variables do _NOT_ have any effect anymore (compared to
FindQt.cmake)
QT_MT_REQUIRED Qt4 is now always multithreaded
These variables are set to "" Because Qt structure changed (They make
no sense in Qt4)
QT_QT_LIBRARY Qt-Library is now split
FindQuickTime
Locate QuickTime This module defines QUICKTIME_LIBRARY
QUICKTIME_FOUND, if false, do not try to link to gdal
QUICKTIME_INCLUDE_DIR, where to find the headers
$QUICKTIME_DIR is an environment variable that would correspond to the
./configure --prefix=$QUICKTIME_DIR
Created by Eric Wing.
FindRuby
Find Ruby
This module finds if Ruby is installed and determines where the
include files and libraries are. It also determines what the name of
the library is. This code sets the following variables:
RUBY_INCLUDE_PATH = path to where ruby.h can be found
RUBY_EXECUTABLE = full path to the ruby binary
RUBY_LIBRARY = full path to the ruby library
FindSDL
Locate SDL library This module defines SDL_LIBRARY, the name of the
library to link against SDL_FOUND, if false, do not try to link to SDL
SDL_INCLUDE_DIR, where to find SDL.h
This module responds to the the flag: SDL_BUILDING_LIBRARY If this is
defined, then no SDL_main will be linked in because only applications
need main(). Otherwise, it is assumed you are building an application
and this module will attempt to locate and set the the proper link
flags as part of the returned SDL_LIBRARY variable.
Don't forget to include SDLmain.h and SDLmain.m your project for the
OS X framework based version. (Other versions link to -lSDLmain which
this module will try to find on your behalf.) Also for OS X, this
module will automatically add the -framework Cocoa on your behalf.
Additional Note: If you see an empty SDL_LIBRARY_TEMP in your
configuration and no SDL_LIBRARY, it means CMake did not find your SDL
library (SDL.dll, libsdl.so, SDL.framework, etc). Set
SDL_LIBRARY_TEMP to point to your SDL library, and configure again.
Similarly, if you see an empty SDLMAIN_LIBRARY, you should set this
value as appropriate. These values are used to generate the final
SDL_LIBRARY variable, but when these values are unset, SDL_LIBRARY
does not get created.
$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL. l.e.galup 9-20-02
Modified by Eric Wing. Added code to assist with automated building
by using environmental variables and providing a more
controlled/consistent search behavior. Added new modifications to
recognize OS X frameworks and additional Unix paths (FreeBSD, etc).
Also corrected the header search path to follow "proper" SDL
guidelines. Added a search for SDLmain which is needed by some
platforms. Added a search for threads which is needed by some
platforms. Added needed compile switches for MinGW.
On OSX, this will prefer the Framework version (if found) over others.
People will have to manually change the cache values of SDL_LIBRARY to
override this selection or set the CMake environment
CMAKE_INCLUDE_PATH to modify the search paths.
Note that the header path has changed from SDL/SDL.h to just SDL.h
This needed to change because "proper" SDL convention is #include
"SDL.h", not <SDL/SDL.h>. This is done for portability reasons
because not all systems place things in SDL/ (see FreeBSD).
FindSDL_image
Locate SDL_image library This module defines SDLIMAGE_LIBRARY, the
name of the library to link against SDLIMAGE_FOUND, if false, do not
try to link to SDL SDLIMAGE_INCLUDE_DIR, where to find SDL/SDL.h
$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.
Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).
FindSDL_mixer
Locate SDL_mixer library This module defines SDLMIXER_LIBRARY, the
name of the library to link against SDLMIXER_FOUND, if false, do not
try to link to SDL SDLMIXER_INCLUDE_DIR, where to find SDL/SDL.h
$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.
Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).
FindSDL_net
Locate SDL_net library This module defines SDLNET_LIBRARY, the name of
the library to link against SDLNET_FOUND, if false, do not try to link
against SDLNET_INCLUDE_DIR, where to find the headers
$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.
Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).
FindSDL_sound
Locates the SDL_sound library
FindSDL_ttf
Locate SDL_ttf library This module defines SDLTTF_LIBRARY, the name of
the library to link against SDLTTF_FOUND, if false, do not try to link
to SDL SDLTTF_INCLUDE_DIR, where to find SDL/SDL.h
$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.
Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).
FindSWIG
Find SWIG
This module finds an installed SWIG. It sets the following variables:
SWIG_FOUND - set to true if SWIG is found
SWIG_DIR - the directory where swig is installed
SWIG_EXECUTABLE - the path to the swig executable
SWIG_VERSION - the version number of the swig executable
All informations are collected from the SWIG_EXECUTABLE so the version
to be found can be changed from the command line by means of setting
SWIG_EXECUTABLE
FindSelfPackers
Find upx
This module looks for some executable packers (i.e. softwares that
compress executables or shared libs into on-the-fly self-extracting
executables or shared libs. Examples:
UPX: http://wildsau.idv.uni-linz.ac.at/mfx/upx.html
FindSubversion
Extract information from a subversion working copy
The module defines the following variables:
Subversion_SVN_EXECUTABLE - path to svn command line client
Subversion_VERSION_SVN - version of svn command line client
Subversion_FOUND - true if the command line client was found
If the command line client executable is found the macro
Subversion_WC_INFO(<dir> <var-prefix>)
is defined to extract information of a subversion working copy at a
given location. The macro defines the following variables:
<var-prefix>_WC_URL - url of the repository (at <dir>)
<var-prefix>_WC_ROOT - root url of the repository
<var-prefix>_WC_REVISION - current revision
<var-prefix>_WC_LAST_CHANGED_AUTHOR - author of last commit
<var-prefix>_WC_LAST_CHANGED_DATE - date of last commit
<var-prefix>_WC_LAST_CHANGED_REV - revision of last commit
<var-prefix>_WC_LAST_CHANGED_LOG - last log of base revision
<var-prefix>_WC_INFO - output of command `svn info <dir>'
Example usage:
FIND_PACKAGE(Subversion)
IF(Subversion_FOUND)
Subversion_WC_INFO(${PROJECT_SOURCE_DIR} Project)
MESSAGE("Current revision is ${Project_WC_REVISION}")
ENDIF(Subversion_FOUND)
FindTCL
TK_INTERNAL_PATH was removed.
This module finds if Tcl is installed and determines where the include
files and libraries are. It also determines what the name of the
library is. This code sets the following variables:
TCL_FOUND = Tcl was found
TK_FOUND = Tk was found
TCLTK_FOUND = Tcl and Tk were found
TCL_LIBRARY = path to Tcl library (tcl tcl80)
TCL_INCLUDE_PATH = path to where tcl.h can be found
TCL_TCLSH = path to tclsh binary (tcl tcl80)
TK_LIBRARY = path to Tk library (tk tk80 etc)
TK_INCLUDE_PATH = path to where tk.h can be found
TK_WISH = full path to the wish executable
In an effort to remove some clutter and clear up some issues for
people who are not necessarily Tcl/Tk gurus/developpers, some
variables were moved or removed. Changes compared to CMake 2.4 are:
=> they were only useful for people writing Tcl/Tk extensions.
=> these libs are not packaged by default with Tcl/Tk distributions.
Even when Tcl/Tk is built from source, several flavors of debug libs
are created and there is no real reason to pick a single one
specifically (say, amongst tcl84g, tcl84gs, or tcl84sgx).
Let's leave that choice to the user by allowing him to assign
TCL_LIBRARY to any Tcl library, debug or not.
=> this ended up being only a Win32 variable, and there is a lot of
confusion regarding the location of this file in an installed Tcl/Tk
tree anyway (see 8.5 for example). If you need the internal path at
this point it is safer you ask directly where the *source* tree is
and dig from there.
FindTIFF
Find TIFF library
Find the native TIFF includes and library This module defines
TIFF_INCLUDE_DIR, where to find tiff.h, etc.
TIFF_LIBRARIES, libraries to link against to use TIFF.
TIFF_FOUND, If false, do not try to use TIFF.
also defined, but not for general use are
TIFF_LIBRARY, where to find the TIFF library.
FindTclStub
TCL_STUB_LIBRARY_DEBUG and TK_STUB_LIBRARY_DEBUG were removed.
This module finds Tcl stub libraries. It first finds Tcl include
files and libraries by calling FindTCL.cmake. How to Use the Tcl
Stubs Library:
http://tcl.activestate.com/doc/howto/stubs.html
Using Stub Libraries:
http://safari.oreilly.com/0130385603/ch48lev1sec3
This code sets the following variables:
TCL_STUB_LIBRARY = path to Tcl stub library
TK_STUB_LIBRARY = path to Tk stub library
In an effort to remove some clutter and clear up some issues for
people who are not necessarily Tcl/Tk gurus/developpers, some
variables were moved or removed. Changes compared to CMake 2.4 are:
=> these libs are not packaged by default with Tcl/Tk distributions.
Even when Tcl/Tk is built from source, several flavors of debug libs
are created and there is no real reason to pick a single one
specifically (say, amongst tclstub84g, tclstub84gs, or tclstub84sgx).
Let's leave that choice to the user by allowing him to assign
TCL_STUB_LIBRARY to any Tcl library, debug or not.
FindTclsh
Find tclsh
This module finds if TCL is installed and determines where the include
files and libraries are. It also determines what the name of the
library is. This code sets the following variables:
TCLSH_FOUND = TRUE if tclsh has been found
TCL_TCLSH = the path to the tclsh executable
In cygwin, look for the cygwin version first. Don't look for it later
to avoid finding the cygwin version on a Win32 build.
FindThreads
This module determines the thread library of the system.
The following variables are set
CMAKE_THREAD_LIBS_INIT - the thread library
CMAKE_USE_SPROC_INIT - are we using sproc?
CMAKE_USE_WIN32_THREADS_INIT - using WIN32 threads?
CMAKE_USE_PTHREADS_INIT - are we using pthreads
CMAKE_HP_PTHREADS_INIT - are we using hp pthreads
FindUnixCommands
Find unix commands from cygwin
This module looks for some usual Unix commands.
FindVTK
Find a VTK installation or build tree.
The following variables are set if VTK is found. If VTK is not found,
VTK_FOUND is set to false.
VTK_FOUND - Set to true when VTK is found.
VTK_USE_FILE - CMake file to use VTK.
VTK_MAJOR_VERSION - The VTK major version number.
VTK_MINOR_VERSION - The VTK minor version number
(odd non-release).
VTK_BUILD_VERSION - The VTK patch level
(meaningless for odd minor).
VTK_INCLUDE_DIRS - Include directories for VTK
VTK_LIBRARY_DIRS - Link directories for VTK libraries
VTK_KITS - List of VTK kits, in CAPS
(COMMON,IO,) etc.
VTK_LANGUAGES - List of wrapped languages, in CAPS
(TCL, PYHTON,) etc.
The following cache entries must be set by the user to locate VTK:
VTK_DIR - The directory containing VTKConfig.cmake.
This is either the root of the build tree,
or the lib/vtk directory. This is the
only cache entry.
The following variables are set for backward compatibility and should
not be used in new code:
USE_VTK_FILE - The full path to the UseVTK.cmake file.
This is provided for backward
compatibility. Use VTK_USE_FILE
instead.
FindWget
Find wget
This module looks for wget. This module defines the following values:
WGET_EXECUTABLE: the full path to the wget tool.
WGET_FOUND: True if wget has been found.
FindWish
Find wish installation
This module finds if TCL is installed and determines where the include
files and libraries are. It also determines what the name of the
library is. This code sets the following variables:
TK_WISH = the path to the wish executable
if UNIX is defined, then it will look for the cygwin version first
FindX11
Find X11 installation
Try to find X11 on UNIX systems. The following values are defined
X11_FOUND - True if X11 is available
X11_INCLUDE_DIR - include directories to use X11
X11_LIBRARIES - link against these to use X11
and also the following more fine grained variables: Include paths:
X11_ICE_INCLUDE_PATH, X11_ICE_LIB, X11_ICE_FOUND
X11_Xaccessrules_INCLUDE_PATH, X11_Xaccess_FOUND
X11_Xaccessstr_INCLUDE_PATH, X11_Xaccess_FOUND
X11_Xau_INCLUDE_PATH, X11_Xau_LIB, X11_Xau_FOUND
X11_Xcomposite_INCLUDE_PATH, X11_Xcomposite_LIB, X11_Xcomposite_FOUND
X11_Xcursor_INCLUDE_PATH, X11_Xcursor_LIB, X11_Xcursor_FOUND
X11_Xdamage_INCLUDE_PATH, X11_Xdamage_LIB, X11_Xdamage_FOUND
X11_Xdmcp_INCLUDE_PATH, X11_Xdmcp_LIB, X11_Xdmcp_FOUND
X11_Xext_LIB, X11_Xext_FOUND
X11_dpms_INCLUDE_PATH, (in X11_Xext_LIB), X11_dpms_FOUND
X11_XShm_INCLUDE_PATH, (in X11_Xext_LIB), X11_XShm_FOUND
X11_Xshape_INCLUDE_PATH, (in X11_Xext_LIB), X11_Xshape_FOUND
X11_xf86misc_INCLUDE_PATH, X11_Xxf86misc_LIB, X11_xf86misc_FOUND
X11_xf86vmode_INCLUDE_PATH, X11_xf86vmode_FOUND
X11_Xfixes_INCLUDE_PATH, X11_Xfixes_LIB, X11_Xfixes_FOUND
X11_Xft_INCLUDE_PATH, X11_Xft_LIB, X11_Xft_FOUND
X11_Xinerama_INCLUDE_PATH, X11_Xinerama_LIB, X11_Xinerama_FOUND
X11_Xinput_INCLUDE_PATH, X11_Xinput_LIB, X11_Xinput_FOUND
X11_Xkb_INCLUDE_PATH, X11_Xkb_FOUND
X11_Xkblib_INCLUDE_PATH, X11_Xkb_FOUND
X11_Xpm_INCLUDE_PATH, X11_Xpm_LIB, X11_Xpm_FOUND
X11_XTest_INCLUDE_PATH, X11_XTest_LIB, X11_XTest_FOUND
X11_Xrandr_INCLUDE_PATH, X11_Xrandr_LIB, X11_Xrandr_FOUND
X11_Xrender_INCLUDE_PATH, X11_Xrender_LIB, X11_Xrender_FOUND
X11_Xscreensaver_INCLUDE_PATH, X11_Xscreensaver_LIB, X11_Xscreensaver_FOUND
X11_Xt_INCLUDE_PATH, X11_Xt_LIB, X11_Xt_FOUND
X11_Xutil_INCLUDE_PATH, X11_Xutil_FOUND
X11_Xv_INCLUDE_PATH, X11_Xv_LIB, X11_Xv_FOUND
FindXMLRPC
Find xmlrpc
Find the native XMLRPC headers and libraries.
XMLRPC_INCLUDE_DIRS - where to find xmlrpc.h, etc.
XMLRPC_LIBRARIES - List of libraries when using xmlrpc.
XMLRPC_FOUND - True if xmlrpc found.
XMLRPC modules may be specified as components for this find module.
Modules may be listed by running "xmlrpc-c-config". Modules include:
c++ C++ wrapper code
libwww-client libwww-based client
cgi-server CGI-based server
abyss-server ABYSS-based server
Typical usage:
FIND_PACKAGE(XMLRPC REQUIRED libwww-client)
FindZLIB
Find zlib
Find the native ZLIB includes and library
ZLIB_INCLUDE_DIR - where to find zlib.h, etc.
ZLIB_LIBRARIES - List of libraries when using zlib.
ZLIB_FOUND - True if zlib found.
Findosg
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osg This module defines OSG_LIBRARY OSG_FOUND, if false, do not
try to link to osg OSG_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgDB
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgDB This module defines OSGDB_LIBRARY OSGDB_FOUND, if false,
do not try to link to osgDB OSGDB_INCLUDE_DIR, where to find the
headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgFX
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgFX This module defines OSGFX_LIBRARY OSGFX_FOUND, if false,
do not try to link to osgFX OSGFX_INCLUDE_DIR, where to find the
headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgGA
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgGA This module defines OSGGA_LIBRARY OSGGA_FOUND, if false,
do not try to link to osgGA OSGGA_INCLUDE_DIR, where to find the
headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgIntrospection
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgIntrospection This module defines OSGINTROSPECTION_LIBRARY
OSGINTROSPECTION_FOUND, if false, do not try to link to
osgIntrospection OSGINTROSPECTION_INCLUDE_DIR, where to find the
headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgManipulator
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgManipulator This module defines OSG_LIBRARY
OSGMANIPULATOR_FOUND, if false, do not try to link to osgManipulator
OSGMANIPULATOR_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgParticle
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgParticle This module defines OSGPARTICLE_LIBRARY
OSGPARTICLE_FOUND, if false, do not try to link to osgParticle
OSGPARTICLE_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgProducer
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgProducer This module defines OSGPRODUCER_LIBRARY
OSGPRODUCER_FOUND, if false, do not try to link to osgProducer
OSGPRODUCER_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgShadow
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgShadow This module defines OSGSHADOW_LIBRARY
OSGSHADOW_FOUND, if false, do not try to link to osgShadow
OSGSHADOW_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgSim
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgSim This module defines OSGSIM_LIBRARY OSGSIM_FOUND, if
false, do not try to link to osgSim OSGSIM_INCLUDE_DIR, where to find
the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgTerrain
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgTerrain This module defines OSGTERRAIN_LIBRARY
OSGTERRAIN_FOUND, if false, do not try to link to osgTerrain
OSGTERRAIN_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgText
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgText This module defines OSGTEXT_LIBRARY OSGTEXT_FOUND, if
false, do not try to link to osgText OSGTEXT_INCLUDE_DIR, where to
find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgUtil
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgUtil This module defines OSGUTIL_LIBRARY OSGUTIL_FOUND, if
false, do not try to link to osgUtil OSGUTIL_INCLUDE_DIR, where to
find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindosgViewer
This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to each
module. You must also opt into OpenGL and OpenThreads (and Producer
if needed) as these modules won't do it for you. This is to allow you
control over your own system piece by piece in case you need to opt
out of certain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module doesn't
work with your system as an example). If you want to use a more
convenient module that includes everything, use the
FindOpenSceneGraph.cmake instead of the Findosg*.cmake modules.
Locate osgViewer This module defines OSGVIEWER_LIBRARY
OSGVIEWER_FOUND, if false, do not try to link to osgViewer
OSGVIEWER_INCLUDE_DIR, where to find the headers
$OSGDIR is an environment variable that would correspond to the
./configure --prefix=$OSGDIR used in building osg.
Created by Eric Wing.
FindwxWidgets
Find a wxWidgets (a.k.a., wxWindows) installation.
This module finds if wxWidgets is installed and selects a default
configuration to use. wxWidgets is a modular library. To specify the
modules that you will use, you need to name them as components to the
package:
FIND_PACKAGE(wxWidgets COMPONENTS base core ...)
There are two search branches: a windows style and a unix style. For
windows, the following variables are searched for and set to defaults
in case of multiple choices. Change them if the defaults are not
desired (i.e., these are the only variables you should change to
select a configuration):
wxWidgets_ROOT_DIR - Base wxWidgets directory
(e.g., C:/wxWidgets-2.6.3).
wxWidgets_LIB_DIR - Path to wxWidgets libraries
(e.g., C:/wxWidgets-2.6.3/lib/vc_lib).
wxWidgets_CONFIGURATION - Configuration to use
(e.g., msw, mswd, mswu, mswunivud, etc.)
For unix style it uses the wx-config utility. You can select between
debug/release, unicode/ansi, universal/non-universal, and
static/shared in the QtDialog or ccmake interfaces by turning ON/OFF
the following variables:
wxWidgets_USE_DEBUG
wxWidgets_USE_UNICODE
wxWidgets_USE_UNIVERSAL
wxWidgets_USE_STATIC
The following are set after the configuration is done for both windows
and unix style:
wxWidgets_FOUND - Set to TRUE if wxWidgets was found.
wxWidgets_INCLUDE_DIRS - Include directories for WIN32
i.e., where to find "wx/wx.h" and
"wx/setup.h"; possibly empty for unices.
wxWidgets_LIBRARIES - Path to the wxWidgets libraries.
wxWidgets_LIBRARY_DIRS - compile time link dirs, useful for
rpath on UNIX. Typically an empty string
in WIN32 environment.
wxWidgets_DEFINITIONS - Contains defines required to compile/link
against WX, e.g. -DWXUSINGDLL
wxWidgets_CXX_FLAGS - Include dirs and ompiler flags for
unices, empty on WIN32. Esentially
"`wx-config --cxxflags`".
wxWidgets_USE_FILE - Convenience include file.
Sample usage:
FIND_PACKAGE(wxWidgets COMPONENTS base core gl net)
IF(wxWidgets_FOUND)
INCLUDE(${wxWidgets_USE_FILE})
# and for each of your dependant executable/library targets:
TARGET_LINK_LIBRARIES(<YourTarget> ${wxWidgets_LIBRARIES})
ENDIF(wxWidgets_FOUND)
If wxWidgets is required (i.e., not an optional part):
FIND_PACKAGE(wxWidgets REQUIRED base core gl net)
INCLUDE(${wxWidgets_USE_FILE})
# and for each of your dependant executable/library targets:
TARGET_LINK_LIBRARIES(<YourTarget> ${wxWidgets_LIBRARIES})
FindwxWindows
Find wxWindows (wxWidgets) installation
This module finds if wxWindows/wxWidgets is installed and determines
where the include files and libraries are. It also determines what
the name of the library is. Please note this file is DEPRECATED and
replaced by FindwxWidgets.cmake. This code sets the following
variables:
WXWINDOWS_FOUND = system has WxWindows
WXWINDOWS_LIBRARIES = path to the wxWindows libraries
on Unix/Linux with additional
linker flags from
"wx-config --libs"
CMAKE_WXWINDOWS_CXX_FLAGS = Compiler flags for wxWindows,
essentially "`wx-config --cxxflags`"
on Linux
WXWINDOWS_INCLUDE_DIR = where to find "wx/wx.h" and "wx/setup.h"
WXWINDOWS_LINK_DIRECTORIES = link directories, useful for rpath on
Unix
WXWINDOWS_DEFINITIONS = extra defines
OPTIONS If you need OpenGL support please
SET(WXWINDOWS_USE_GL 1)
in your CMakeLists.txt *before* you include this file.
HAVE_ISYSTEM - true required to replace -I by -isystem on g++
For convenience include Use_wxWindows.cmake in your project's
CMakeLists.txt using INCLUDE(Use_wxWindows).
USAGE
SET(WXWINDOWS_USE_GL 1)
FIND_PACKAGE(wxWindows)
NOTES wxWidgets 2.6.x is supported for monolithic builds e.g.
compiled in wx/build/msw dir as:
nmake -f makefile.vc BUILD=debug SHARED=0 USE_OPENGL=1 MONOLITHIC=1
DEPRECATED
CMAKE_WX_CAN_COMPILE
WXWINDOWS_LIBRARY
CMAKE_WX_CXX_FLAGS
WXWINDOWS_INCLUDE_PATH
AUTHOR Jan Woetzel <http://www.mip.informatik.uni-kiel.de/~jw>
(07/2003-01/2006)
GetPrerequisites
GetPrerequisites.cmake
This script provides functions to list the .dll, .dylib or .so files
that an executable or shared library file depends on. (Its
prerequisites.)
It uses various tools to obtain the list of required shared library
files:
dumpbin (Windows)
ldd (Linux/Unix)
otool (Mac OSX)
The following functions are provided by this script:
gp_append_unique
gp_file_type
is_file_executable
get_prerequisites
list_prerequisites
Requires CMake 2.5 or greater because it uses function, break, return
and PARENT_SCOPE.
ITKCompatibility
work around an old bug in ITK prior to verison 3.0
InstallRequiredSystemLibraries
By including this file, all files in the
CMAKE_INSTALL_DEBUG_LIBRARIES, will be installed with INSTALL_PROGRAMS
into /bin for WIN32 and /lib for non-win32. If
CMAKE_SKIP_INSTALL_RULES is set to TRUE before including this file,
then the INSTALL command is not called. The use can use the variable
CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS to use a custom install command and
install them into any directory they want. If it is the MSVC
compiler, then the microsoft run time libraries will be found add
automatically added to the CMAKE_INSTALL_DEBUG_LIBRARIES, and
installed. If CMAKE_INSTALL_DEBUG_LIBRARIES is set and it is the MSVC
compiler, then the debug libraries are installed when available. If
CMAKE_INSTALL_MFC_LIBRARIES is set then the MFC run time libraries are
installed as well as the CRT run time libraries.
MacroAddFileDependencies
MACRO_ADD_FILE_DEPENDENCIES(<_file> depend_files...)
MACRO_OPTIONAL_FIND_PACKAGE( <name> [QUIT] )
TestBigEndian
Define macro to determine endian type
Check if the system is big endian or little endian
TEST_BIG_ENDIAN(VARIABLE)
VARIABLE - variable to store the result to
TestCXXAcceptsFlag
Test CXX compiler for a flag
Check if the CXX compiler accepts a flag
Macro CHECK_CXX_ACCEPTS_FLAG(FLAGS VARIABLE) -
checks if the function exists
FLAGS - the flags to try
VARIABLE - variable to store the result
TestForANSIForScope
Check for ANSI for scope support
Check if the compiler supports std:: on stl classes.
CMAKE_NO_ANSI_FOR_SCOPE - holds result
TestForANSIStreamHeaders
Test for compiler support of ANSI stream headers iostream, etc.
check if we they have the standard ansi stream files (without the .h)
CMAKE_NO_ANSI_STREAM_HEADERS - defined by the results
TestForSSTREAM
# - Test for std:: namespace support check if the compiler supports
std:: on stl classes
CMAKE_NO_ANSI_STRING_STREAM - defined by the results
TestForSTDNamespace
Test for std:: namespace support
check if the compiler supports std:: on stl classes
CMAKE_NO_STD_NAMESPACE - defined by the results
UseEcos
This module defines variables and macros required to build eCos
application.
This file contains the following macros:
ECOS_ADD_INCLUDE_DIRECTORIES() - add the eCos include dirs
ECOS_ADD_EXECUTABLE(name source1 ... sourceN ) - create an eCos
executable ECOS_ADJUST_DIRECTORY(VAR source1 ... sourceN ) - adjusts
the path of the source files and puts the result into VAR
Macros for selecting the toolchain: ECOS_USE_ARM_ELF_TOOLS() - enable
the ARM ELF toolchain for the directory where it is called
ECOS_USE_I386_ELF_TOOLS() - enable the i386 ELF toolchain for the
directory where it is called ECOS_USE_PPC_EABI_TOOLS() - enable the
PowerPC toolchain for the directory where it is called
It contains the following variables: ECOS_DEFINITIONS
ECOSCONFIG_EXECUTABLE ECOS_CONFIG_FILE - defaults to ecos.ecc, if your
eCos configuration file has a different name, adjust this variable for
internal use only:
ECOS_ADD_TARGET_LIB
UsePkgConfig
obsolete pkg-config module for CMake
Defines the following macros:
PKGCONFIG(package includedir libdir linkflags cflags)
Calling PKGCONFIG will fill the desired information into the 4 given
arguments, e.g. PKGCONFIG(libart-2.0 LIBART_INCLUDE_DIR
LIBART_LINK_DIR LIBART_LINK_FLAGS LIBART_CFLAGS) if pkg-config was NOT
found or the specified software package doesn't exist, the variable
will be empty when the function returns, otherwise they will contain
the respective information
UseQt4
Use Module for QT4
Sets up C and C++ to use Qt 4. It is assumed that FindQt.cmake has
already been loaded. See FindQt.cmake for information on how to load
Qt 4 into your CMake project.
UseSWIG
SWIG module for CMake
Defines the following macros:
SWIG_ADD_MODULE(name language [ files ])
- Define swig module with given name and specified language
SWIG_LINK_LIBRARIES(name [ libraries ])
- Link libraries to swig module
All other macros are for internal use only. To get the actual name of
the swig module, use: ${SWIG_MODULE_name_REAL_NAME}. Set Source files
properties such as CPLUSPLUS and SWIG_FLAGS to specify special
behavior of SWIG. Also global CMAKE_SWIG_FLAGS can be used to add
special flags to all swig calls. Another special variable is
CMAKE_SWIG_OUTDIR, it allows one to specify where to write all the
swig generated module (swig -outdir option) The name-specific variable
SWIG_MODULE_<name>_EXTRA_DEPS may be used to specify extra
dependencies for the generated modules.
Use_wxWindows
---------------------------------------------------
This convenience include finds if wxWindows is installed and set the
appropriate libs, incdirs, flags etc. author Jan Woetzel <jw -at-
mip.informatik.uni-kiel.de> (07/2003)
USAGE:
just include Use_wxWindows.cmake
in your projects CMakeLists.txt
INCLUDE( ${CMAKE_MODULE_PATH}/Use_wxWindows.cmake)
if you are sure you need GL then
SET(WXWINDOWS_USE_GL 1)
*before* you include this file.
16.Feb.2004: changed INCLUDE to FIND_PACKAGE to read from users own
non-system CMAKE_MODULE_PATH (Jan Woetzel JW) 07/2006: rewrite as
FindwxWidgets.cmake, kept for backward compatibilty JW
UsewxWidgets
Convenience include for using wxWidgets library
Finds if wxWidgets is installed and set the appropriate libs, incdirs,
flags etc. INCLUDE_DIRECTORIES, LINK_DIRECTORIES and ADD_DEFINITIONS
are called.
USAGE
SET( wxWidgets_USE_LIBS gl xml xrc ) # optionally: more than wx std libs
FIND_PACKAGE(wxWidgets REQUIRED)
INCLUDE( ${xWidgets_USE_FILE} )
... add your targets here, e.g. ADD_EXECUTABLE/ ADD_LIBRARY ...
TARGET_LINK_LIBRARIERS( <yourWxDependantTarget> ${wxWidgets_LIBRARIES})
DEPRECATED
LINK_LIBRARIES is not called in favor of adding dependencies per target.
AUTHOR
Jan Woetzel <jw -at- mip.informatik.uni-kiel.de>
------------------------------------------------------------------------------
Policies
CMP0000
A minimum required CMake version must be specified.
CMake requires that projects specify the version of CMake to which
they have been written. This policy has been put in place so users
trying to build the project may be told when they need to update their
CMake. Specifying a version also helps the project build with CMake
versions newer than that specified. Use the cmake_minimum_required
command at the top of your main CMakeLists.txt file:
cmake_minimum_required(VERSION <major>.<minor>)
where "<major>.<minor>" is the version of CMake you want to support
(such as "2.6"). The command will ensure that at least the given
version of CMake is running and help newer versions be compatible with
the project. See documentation of cmake_minimum_required for details.
Note that the command invocation must appear in the CMakeLists.txt
file itself; a call in an included file is not sufficient. However,
the cmake_policy command may be called to set policy CMP0000 to OLD or
NEW behavior explicitly. The OLD behavior is to silently ignore the
missing invocation. The NEW behavior is to issue an error instead of
a warning. An included file may set CMP0000 explicitly to affect how
this policy is enforced for the main CMakeLists.txt file.
This policy was introduced in CMake version 2.6.0.
CMP0001
CMAKE_BACKWARDS_COMPATIBILITY should no longer be used.
The OLD behavior is to check CMAKE_BACKWARDS_COMPATIBILITY and present
it to the user. The NEW behavior is to ignore
CMAKE_BACKWARDS_COMPATIBILITY completely.
In CMake 2.4 and below the variable CMAKE_BACKWARDS_COMPATIBILITY was
used to request compatibility with earlier versions of CMake. In
CMake 2.6 and above all compatibility issues are handled by policies
and the cmake_policy command. However, CMake must still check
CMAKE_BACKWARDS_COMPATIBILITY for projects written for CMake 2.4 and
below.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0002
Logical target names must be globally unique.
Targets names created with add_executable, add_library, or
add_custom_target are logical build target names. Logical target
names must be globally unique because:
- Unique names may be referenced unambiguously both in CMake
code and on make tool command lines.
- Logical names are used by Xcode and VS IDE generators
to produce meaningful project names for the targets.
The logical name of executable and library targets does not have to
correspond to the physical file names built. Consider using the
OUTPUT_NAME target property to create two targets with the same
physical name while keeping logical names distinct. Custom targets
must simply have globally unique names (unless one uses the global
property ALLOW_DUPLICATE_CUSTOM_TARGETS with a Makefiles generator).
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0003
Libraries linked via full path no longer produce linker search paths.
This policy affects how libraries whose full paths are NOT known are
found at link time, but was created due to a change in how CMake deals
with libraries whose full paths are known. Consider the code
target_link_libraries(myexe /path/to/libA.so)
CMake 2.4 and below implemented linking to libraries whose full paths
are known by splitting them on the link line into separate components
consisting of the linker search path and the library name. The
example code might have produced something like
... -L/path/to -lA ...
in order to link to library A. An analysis was performed to order
multiple link directories such that the linker would find library A in
the desired location, but there are cases in which this does not work.
CMake versions 2.6 and above use the more reliable approach of passing
the full path to libraries directly to the linker in most cases. The
example code now produces something like
... /path/to/libA.so ....
Unfortunately this change can break code like
target_link_libraries(myexe /path/to/libA.so B)
where "B" is meant to find "/path/to/libB.so". This code is wrong
because the user is asking the linker to find library B but has not
provided a linker search path (which may be added with the
link_directories command). However, with the old linking
implementation the code would work accidentally because the linker
search path added for library A allowed library B to be found.
In order to support projects depending on linker search paths added by
linking to libraries with known full paths, the OLD behavior for this
policy will add the linker search paths even though they are not
needed for their own libraries. When this policy is set to OLD, CMake
will produce a link line such as
... -L/path/to /path/to/libA.so -lB ...
which will allow library B to be found as it was previously. When
this policy is set to NEW, CMake will produce a link line such as
... /path/to/libA.so -lB ...
which more accurately matches what the project specified.
The setting for this policy used when generating the link line is that
in effect when the target is created by an add_executable or
add_library command. For the example described above, the code
cmake_policy(SET CMP0003 OLD) # or cmake_policy(VERSION 2.4)
add_executable(myexe myexe.c)
target_link_libraries(myexe /path/to/libA.so B)
will work and suppress the warning for this policy. It may also be
updated to work with the corrected linking approach:
cmake_policy(SET CMP0003 NEW) # or cmake_policy(VERSION 2.6)
link_directories(/path/to) # needed to find library B
add_executable(myexe myexe.c)
target_link_libraries(myexe /path/to/libA.so B)
Even better, library B may be specified with a full path:
add_executable(myexe myexe.c)
target_link_libraries(myexe /path/to/libA.so /path/to/libB.so)
When all items on the link line have known paths CMake does not check
this policy so it has no effect.
Note that the warning for this policy will be issued for at most one
target. This avoids flooding users with messages for every target
when setting the policy once will probably fix all targets.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0004
Libraries linked may not have leading or trailing whitespace.
CMake versions 2.4 and below silently removed leading and trailing
whitespace from libraries linked with code like
target_link_libraries(myexe " A ")
This could lead to subtle errors in user projects.
The OLD behavior for this policy is to silently remove leading and
trailing whitespace. The NEW behavior for this policy is to diagnose
the existence of such whitespace as an error. The setting for this
policy used when checking the library names is that in effect when the
target is created by an add_executable or add_library command.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0005
Preprocessor definition values are now escaped automatically.
This policy determines whether or not CMake should generate escaped
preprocessor definition values added via add_definitions. CMake
versions 2.4 and below assumed that only trivial values would be given
for macros in add_definitions calls. It did not attempt to escape
non-trivial values such as string literals in generated build rules.
CMake versions 2.6 and above support escaping of most values, but
cannot assume the user has not added escapes already in an attempt to
work around limitations in earlier versions.
The OLD behavior for this policy is to place definition values given
to add_definitions directly in the generated build rules without
attempting to escape anything. The NEW behavior for this policy is to
generate correct escapes for all native build tools automatically.
See documentation of the COMPILE_DEFINITIONS target property for
limitations of the escaping implementation.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0006
Installing MACOSX_BUNDLE targets requires a BUNDLE DESTINATION.
This policy determines whether the install(TARGETS) command must be
given a BUNDLE DESTINATION when asked to install a target with the
MACOSX_BUNDLE property set. CMake 2.4 and below did not distinguish
application bundles from normal executables when installing targets.
CMake 2.6 provides a BUNDLE option to the install(TARGETS) command
that specifies rules specific to application bundles on the Mac.
Projects should use this option when installing a target with the
MACOSX_BUNDLE property set.
The OLD behavior for this policy is to fall back to the RUNTIME
DESTINATION if a BUNDLE DESTINATION is not given. The NEW behavior
for this policy is to produce an error if a bundle target is installed
without a BUNDLE DESTINATION.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
CMP0007
list command no longer ignores empty elements.
This policy determines whether the list command will ignore empty
elements in the list. CMake 2.4 and below list commands ignored all
empty elements in the list. For example, a;b;;c would have length 3
and not 4. The OLD behavior for this policy is to ignore empty list
elements. The NEW behavior for this policy is to correctly count
empty elements in a list.
This policy was introduced in CMake version 2.6.0. CMake version 2.6
warns when the policy is not set and uses OLD behavior. Use the
cmake_policy command to set it to OLD or NEW explicitly.
------------------------------------------------------------------------------
Variables
------------------------------------------------------------------------------
Variables That Change Behavior
BUILD_SHARED_LIBS
Global flag to cause add_library to create shared libraries if on.
If present and true, this will cause all libraries to be built shared
unless the library was explicitly added as a static library. This
variable is often added to projects as an OPTION so that each user of
a project can decide if they want to build the project using shared or
static libraries.
CMAKE_BACKWARDS_COMPATIBILITY
Version of cmake required to build project
From the point of view of backwards compatibility, this specifies what
version of CMake should be supported. By default this value is the
version number of CMake that you are running. You can set this to an
older version of CMake to support deprecated commands of CMake in
projects that were written to use older versions of CMake. This can
be set by the user or set at the beginning of a CMakeLists file.
CMAKE_BUILD_TYPE
Specifies the build type for make based generators.
This specifies what build type will be built in this tree. Possible
values are empty, Debug, Release, RelWithDebInfo and MinSizeRel. This
variable is only supported for make based generators. If this
variable is supported, then CMake will also provide initial values for
the variables with the name
CMAKE_C_FLAGS_[Debug|Release|RelWithDebInfo|MinSizeRel]. For example,
if CMAKE_BUILD_TYPE is Debug, then CMAKE_C_FLAGS_DEBUG will be added
to the CMAKE_C_FLAGS.
CMAKE_CONFIGURATION_TYPES
Specifies the available build types.
This specifies what build types will be available such as Debug,
Release, RelWithDebInfo etc. This has reasonable defaults on most
platforms. But can be extended to provide other build types. See
also CMAKE_BUILD_TYPE.
CMAKE_CROSSCOMPILING
Is CMake currently cross compiling.
This variable will be set to true by CMake if CMake is cross
compiling. Specifically if the build platform is different from the
target platform.
CMAKE_FIND_LIBRARY_PREFIXES
Prefixes to prepend when looking for libraries.
This specifies what prefixes to add to library names when the
find_library command looks for libraries. On UNIX systems this is
typically lib, meaning that when trying to find the foo library it
will look for libfoo.
CMAKE_FIND_LIBRARY_SUFFIXES
Suffixes to append when looking for libraries.
This specifies what suffixes to add to library names when the
find_library command looks for libraries. On Windows systems this is
typically .lib and .dll, meaning that when trying to find the foo
library it will look for foo.dll etc.
CMAKE_INSTALL_PREFIX
Install directory used by install.
If "make install" is invoked or INSTALL is built, this directory is
pre-pended onto all install directories. This variable defaults to
/usr/local on UNIX and c:/Program Files on Windows.
CMAKE_MFC_FLAG
Tell cmake to use MFC for an executable or dll.
This can be set in a CMakeLists.txt file and will enable MFC in the
application. It should be set to 1 for static the static MFC library,
and 2 for the shared MFC library. This is used in visual studio 6 and
7 project files. The CMakeSetup dialog uses MFC and the
CMakeLists.txt looks like this:
ADD_DEFINITIONS(-D_AFXDLL)
set(CMAKE_MFC_FLAG 2)
add_executable(CMakeSetup WIN32 ${SRCS})
CMAKE_MODULE_PATH
Path to look for cmake modules to load.
Specifies a path to override the default seach path for CMake modules.
For example include commands will look in this path first for modules
to include.
CMAKE_NOT_USING_CONFIG_FLAGS
Skip _BUILD_TYPE flags if true.
This is an internal flag used by the generators in CMake to tell CMake
to skip the _BUILD_TYPE flags.
CMAKE_USER_MAKE_RULES_OVERRIDE
Specify a file that can change the build rule variables.
If this variable is set, it should to point to a CMakeLists.txt file
that will be read in by CMake after all the system settings have been
set, but before they have been used. This would allow you to override
any variables that need to be changed for some special project.
------------------------------------------------------------------------------
Variables That Describe the System
APPLE
True if running on Mac OSX.
Set to true on Mac OSX.
BORLAND
True of the borland compiler is being used.
This is set to true if the Borland compiler is being used.
CMAKE_CL_64
Using the 64 bit compiler from Microsoft
Set to true when using the 64 bit cl compiler from Microsoft.
CMAKE_COMPILER_2005
Using the Visual Studio 2005 compiler from Microsoft
Set to true when using the Visual Studio 2005 compiler from Microsoft.
CMAKE_HOST_APPLE
True for Apple OSXoperating systems.
Set to true when the host system is Apple OSX.
CMAKE_HOST_SYSTEM
Name of system cmake is being run on.
The same as CMAKE_SYSTEM but for the host system instead of the target
system when cross compiling.
CMAKE_HOST_SYSTEM_NAME
Name of the OS CMake is running on.
The same as CMAKE_SYSTEM_NAME but for the host system instead of the
target system when cross compiling.
CMAKE_HOST_SYSTEM_PROCESSOR
The name of the CPU CMake is running on.
The same as CMAKE_SYSTEM_PROCESSOR but for the host system instead of
the target system when cross compiling.
CMAKE_HOST_SYSTEM_VERSION
OS version CMake is running on.
The same as CMAKE_SYSTEM_VERSION but for the host system instead of
the target system when cross compiling.
CMAKE_HOST_UNIX
True for UNIX and UNIX like operating systems.
Set to true when the host system is UNIX or UNIX like (i.e. APPLE and
CYGWIN).
CMAKE_HOST_WIN32
True on windows systems, including win64.
Set to true when the host system is Windows and on cygwin.
CMAKE_SYSTEM
Name of system cmake is compiling for.
This variable is the composite of CMAKE_SYSTEM_NAMEand
CMAKE_SYSTEM_VERSION, like this
${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_VERSION}. If CMAKE_SYSTEM_VERSION
is not set, then CMAKE_SYSTEM is the same as CMAKE_SYSTEM_NAME.
CMAKE_SYSTEM_NAME
Name of the OS CMake is building for.
This is the name of the operating system on which CMake is targeting.
On systems that have the uname command, this variable is set to the
output of uname -s. Linux, Windows, and Darwin for Mac OSX are the
values found on the big three operating systems.
CMAKE_SYSTEM_PROCESSOR
The name of the CPU CMake is building for.
On systems that support uname, this variable is set to the output of
uname -p, on windows it is set to the value of the environment
variable PROCESSOR_ARCHITECTURE
CMAKE_SYSTEM_VERSION
OS version CMake is building for.
A numeric version string for the system, on systems that support
uname, this variable is set to the output of uname -r. On other
systems this is set to major-minor version numbers.
CYGWIN
True for cygwin.
Set to true when using CYGWIN.
MSVC
True when using Microsoft Visual C
Set to true when the compiler is some version of Microsoft Visual C.
MSVC80
True when using Microsoft Visual C 8.0
Set to true when the compiler is version 8.0 of Microsoft Visual C.
MSVC_IDE
True when using the Microsoft Visual C IDE
Set to true when the target platform is the Microsoft Visual C IDE, as
opposed to the command line compiler.
MSVC_VERSION
The version of Microsoft Visual C/C++ being used if any.
The version of Microsoft Visual C/C++ being used if any. For example
1300 is MSVC 6.0.
UNIX
True for UNIX and UNIX like operating systems.
Set to true when the target system is UNIX or UNIX like (i.e. APPLE
and CYGWIN).
WIN32
True on windows systems, including win64.
Set to true when the target system is Windows and on cygwin.
------------------------------------------------------------------------------
Variables for Languages
CMAKE_<LANG>_ARCHIVE_APPEND
Rule variable to append to a static archive.
This is a rule variable that tells CMake how to append to a static
archive. It is used in place of CMAKE_<LANG>_CREATE_STATIC_LIBRARY on
some platforms in order to support large object counts. See also
CMAKE_<LANG>_ARCHIVE_CREATE and CMAKE_<LANG>_ARCHIVE_FINISH.
CMAKE_<LANG>_ARCHIVE_CREATE
Rule variable to create a new static archive.
This is a rule variable that tells CMake how to create a static
archive. It is used in place of CMAKE_<LANG>_CREATE_STATIC_LIBRARY on
some platforms in order to support large object counts. See also
CMAKE_<LANG>_ARCHIVE_APPEND and CMAKE_<LANG>_ARCHIVE_FINISH.
CMAKE_<LANG>_ARCHIVE_FINISH
Rule variable to finish an existing static archive.
This is a rule variable that tells CMake how to finish a static
archive. It is used in place of CMAKE_<LANG>_CREATE_STATIC_LIBRARY on
some platforms in order to support large object counts. See also
CMAKE_<LANG>_ARCHIVE_CREATE and CMAKE_<LANG>_ARCHIVE_APPEND.
CMAKE_<LANG>_COMPILER
The full path to the compiler for LANG.
This is the command that will be used as the <LANG> compiler. Once
set, you can not change this variable.
CMAKE_<LANG>_COMPILER_ABI
An internal variable subject to change.
This is used in determining the compiler ABI and is subject to change.
CMAKE_<LANG>_COMPILER_ID
An internal variable subject to change.
This is used in determining the compiler and is subject to change.
CMAKE_<LANG>_COMPILE_OBJECT
Rule variable to compile a single object file.
This is a rule variable that tells CMake how to compile a single
object file for for the language <LANG>.
CMAKE_<LANG>_CREATE_SHARED_LIBRARY
Rule variable to create a shared library.
This is a rule variable that tells CMake how to create a shared
library for the language <LANG>.
CMAKE_<LANG>_CREATE_SHARED_MODULE
Rule variable to create a shared module.
This is a rule variable that tells CMake how to create a shared
library for the language <LANG>.
CMAKE_<LANG>_CREATE_STATIC_LIBRARY
Rule variable to create a static library.
This is a rule variable that tells CMake how to create a static
library for the language <LANG>.
CMAKE_<LANG>_FLAGS_DEBUG
Flags for Debug build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is Debug.
CMAKE_<LANG>_FLAGS_MINSIZEREL
Flags for MinSizeRel build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is MinSizeRel.Short for
minimum size release.
CMAKE_<LANG>_FLAGS_RELEASE
Flags for Release build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is Release
CMAKE_<LANG>_FLAGS_RELWITHDEBINFO
Flags for RelWithDebInfo type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is RelWithDebInfo. Short for
Release With Debug Information.
CMAKE_<LANG>_IGNORE_EXTENSIONS
File extensions that should be ignored by the build.
This is a list of file extensions that may be part of a project for a
given language but are not compiled.
CMAKE_<LANG>_LINKER_PREFERENCE
Determine if a language should be used for linking.
If this is "Preferred" then if there is a mixed language shared
library or executable, then this languages linker command will be
used.
CMAKE_<LANG>_LINK_EXECUTABLE
Rule variable to link and executable.
Rule variable to link and executable for the given language.
CMAKE_<LANG>_OUTPUT_EXTENSION
Extension for the output of a compile for a single file.
This is the extension for an object file for the given <LANG>. For
example .obj for C on Windows.
CMAKE_<LANG>_PLATFORM_ID
An internal variable subject to change.
This is used in determining the platform and is subject to change.
CMAKE_<LANG>_SIZEOF_DATA_PTR
An internal variable subject to change.
This is used in determining the architecture and is subject to change.
CMAKE_<LANG>_SOURCE_FILE_EXTENSIONS
Extensions of source files for the given language.
This is the list of extensions for a given languages source files.
CMAKE_COMPILER_IS_GNU<LANG>
True if the compiler is GNU.
If the selected <LANG> compiler is the GNU compiler then this is TRUE,
if not it is FALSE.
CMAKE_INTERNAL_PLATFORM_ABI
An internal variable subject to change.
This is used in determining the compiler ABI and is subject to change.
CMAKE_USER_MAKE_RULES_OVERRIDE_<LANG>
Specify a file that can change the build rule variables.
If this variable is set, it should to point to a CMakeLists.txt file
that will be read in by CMake after all the system settings have been
set, but before they have been used. This would allow you to override
any variables that need to be changed for some language.
------------------------------------------------------------------------------
Variables that Control the Build
CMAKE_ARCHIVE_OUTPUT_DIRECTORY
Where to put all the ARCHIVE targets when built.
This variable is used to initialize the ARCHIVE_OUTPUT_DIRECTORY
property on all the targets. See that target property for additional
information.
CMAKE_BUILD_WITH_INSTALL_RPATH
Use the install path for the RPATH
Normally CMake uses the build tree for the RPATH when building
executables etc on systems that use RPATH. When the software is
installed the executables etc are relinked by CMake to have the
install RPATH. If this variable is set to true then the software is
always built with the install path for the RPATH and does not need to
be relinked when installed.
CMAKE_DEBUG_POSTFIX
A postfix to add to targets when build as debug.
This variable is used to initialize the DEBUG_POSTFIX property on all
the targets. If set the postfix will be appended to any targets built
when the configuration is Debug.
CMAKE_EXE_LINKER_FLAGS
Linker flags used to create executables.
Flags used by the linker when creating an executable.
CMAKE_EXE_LINKER_FLAGS_[CMAKE_BUILD_TYPE]
Flag used when linking an executable.
Same as CMAKE_C_FLAGS_* but used by the linker when creating
executables.
CMAKE_Fortran_MODULE_DIRECTORY
Fortran module output directory.
This variable is used to initialize the Fortran_MODULE_DIRECTORY
property on all the targets. See that target property for additional
information.
CMAKE_INSTALL_NAME_DIR
Mac OSX directory name for installed targets.
CMAKE_INSTALL_NAME_DIR is used to initialize the INSTALL_NAME_DIR
property on all targets. See that target property for more
information.
CMAKE_INSTALL_RPATH
The rpath to use for installed targets.
A semicolon-separated list specifying the rpath to use in installed
targets (for platforms that support it). This is used to initialize
the target property INSTALL_RPATH for all targets.
CMAKE_INSTALL_RPATH_USE_LINK_PATH
Add paths to linker search and installed rpath.
CMAKE_INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true
will append directories in the linker search path and outside the
project to the INSTALL_RPATH. This is used to initialize the target
property INSTALL_RPATH_USE_LINK_PATH for all targets.
CMAKE_LIBRARY_OUTPUT_DIRECTORY
Where to put all the LIBRARY targets when built.
This variable is used to initialize the LIBRARY_OUTPUT_DIRECTORY
property on all the targets. See that target property for additional
information.
CMAKE_LIBRARY_PATH_FLAG
The flag used to add a library search path to a compiler.
The flag used to specify a library directory to the compiler. On most
compilers this is "-L".
CMAKE_LINK_DEF_FILE_FLAG
Linker flag used to specify a .def file for dll creation.
The flag used to add a .def file when creating a dll on Windows, this
is only defined on Windows.
CMAKE_LINK_LIBRARY_FILE_FLAG
Flag used to link a library specified by a path to its file.
The flag used before a library file path is given to the linker. This
is needed only on very few platforms.
CMAKE_LINK_LIBRARY_FLAG
Flag used to link a library into an executable.
The flag used to specify a library to link to an executable. On most
compilers this is "-l".
CMAKE_RUNTIME_OUTPUT_DIRECTORY
Where to put all the RUNTIME targets when built.
This variable is used to initialize the RUNTIME_OUTPUT_DIRECTORY
property on all the targets. See that target property for additional
information.
CMAKE_SKIP_BUILD_RPATH
Do not include RPATHs in the build tree.
Normally CMake uses the build tree for the RPATH when building
executables etc on systems that use RPATH. When the software is
installed the executables etc are relinked by CMake to have the
install RPATH. If this variable is set to true then the software is
always built with no RPATH.
CMAKE_USE_RELATIVE_PATHS
Use relative paths (May not work!).
If this is set to TRUE, then the CMake will use relative paths between
the source and binary tree. This option does not work for more
complicated projects, and relative paths are used when possible. In
general, it is not possible to move CMake generated makefiles to a
different location regardless of the value of this variable.
EXECUTABLE_OUTPUT_PATH
Old executable location variable.
This variable should no longer be used as of CMake 2.6. Use the
RUNTIME_OUTPUT_DIRECTORY target property instead. It will override
this variable if it is set.
If set, this is the directory where all executables built during the
build process will be placed.
LIBRARY_OUTPUT_PATH
Old library location variable.
This variable should no longer be used as of CMake 2.6. Use the
ARCHIVE_OUTPUT_DIRECTORY, LIBRARY_OUTPUT_DIRECTORY, and
RUNTIME_OUTPUT_DIRECTORY target properties instead. They will
override this variable if they are set.
If set, this is the directory where all the libraries built during the
build process will be placed.
------------------------------------------------------------------------------
Variables that Provide Information
variables defined by cmake, that give information about the project, and
cmake
CMAKE_AR
Name of archiving tool for static libraries.
This specifies name of the program that creates archive or static
libraries.
CMAKE_BINARY_DIR
The path to the top level of the build tree.
This is the full path to the top level of the current CMake build
tree. For an in-source build, this would be the same as
CMAKE_SOURCE_DIR.
CMAKE_BUILD_TOOL
Tool used for the acutal build process.
This variable is set to the program that will be needed to build the
output of CMake. If the generator selected was Visual Studio 6, the
CMAKE_MAKE_PROGRAM will be set to msdev, for Unix makefiles it will be
set to make or gmake, and for Visual Studio 7 it set to devenv. For
Nmake Makefiles the value is nmake. This can be useful for adding
special flags and commands based on the final build environment.
CMAKE_CACHEFILE_DIR
The directory with the CMakeCache.txt file.
This is the full path to the directory that has the CMakeCache.txt
file in it. This is the same as CMAKE_BINARY_DIR.
CMAKE_CACHE_MAJOR_VERSION
Major version of CMake used to create the CMakeCache.txt file
This is stores the major version of CMake used to write a CMake cache
file. It is only different when a different version of CMake is run
on a previously created cache file.
CMAKE_CACHE_MINOR_VERSION
Minor version of CMake used to create the CMakeCache.txt file
This is stores the minor version of CMake used to write a CMake cache
file. It is only different when a different version of CMake is run
on a previously created cache file.
CMAKE_CACHE_RELEASE_VERSION
Release version of CMake used to create the CMakeCache.txt file
This is stores the release version of CMake used to write a CMake
cache file. It is only different when a different version of CMake is
run on a previously created cache file.
CMAKE_CFG_INTDIR
Build time configuration directory for project.
This is a variable that is used to provide developers access to the
intermediate directory used by Visual Studio IDE projects. For
example, if building Debug all executables and libraries end up in a
Debug directory. On UNIX systems this variable is set to ".".
However, with Visual Studio this variable is set to $(IntDir).
$(IntDir) is expanded by the IDE only. So this variable should only
be used in custom commands that will be run during the build process.
This variable should not be used directly in a CMake command. CMake
has no way of knowing if Debug or Release will be picked by the IDE
for a build type. If a program needs to know the directory it was
built in, it can use CMAKE_INTDIR. CMAKE_INTDIR is a C/C++
preprocessor macro that is defined on the command line of the
compiler. If it has a value, it will be the intermediate directory
used to build the file. This way an executable or a library can find
files that are located in the build directory.
CMAKE_COMMAND
The full path to the cmake executable.
This is the full path to the CMake executable cmake which is useful
from custom commands that want to use the cmake -E option for portable
system commands. (e.g. /usr/local/bin/cmake
CMAKE_CTEST_COMMAND
Full path to ctest command installed with cmake.
This is the full path to the CTest executable ctest which is useful
from custom commands that want to use the cmake -E option for portable
system commands.
CMAKE_CURRENT_BINARY_DIR
The path to the binary directory currently being processed.
This the full path to the build directory that is currently being
processed by cmake. Each directory added by add_subdirectory will
create a binary directory in the build tree, and as it is being
processed this variable will be set. For in-source builds this is the
current source directory being processed.
CMAKE_CURRENT_LIST_FILE
Full path to the listfile currently being processed.
As CMake processes the listfiles in your project this variable will
always be set to the one currently being processed. See also
CMAKE_PARENT_LIST_FILE.
CMAKE_CURRENT_LIST_LINE
The line number of the current file being processed.
This is the line number of the file currently being processed by
cmake.
CMAKE_CURRENT_SOURCE_DIR
The path to the source directory currently being processed.
This the full path to the source directory that is currently being
processed by cmake.
CMAKE_DL_LIBS
Name of library containing dlopen and dlcose.
The name of the library that has dlopen and dlclose in it, usually
-ldl on most UNIX machines.
CMAKE_EDIT_COMMAND
Full path to CMakeSetup or ccmake.
This is the full path to the CMake executable that can graphically
edit the cache. For example, CMakeSetup, ccmake, or cmake -i.
CMAKE_EXECUTABLE_SUFFIX
The suffix for executables on this platform.
The suffix to use for the end of an executable if any, .exe on
Windows.
CMAKE_GENERATOR
The generator used to build the project.
The name of the generator that is being used to generate the build
files. (e.g. "Unix Makefiles", "Visual Studio 6", etc.)
CMAKE_HOME_DIRECTORY
Path to top of source tree.
This is the path to the top level of the source tree.
CMAKE_IMPORT_LIBRARY_PREFIX
The prefix for import libraries that you link to.
The prefix to use for the name of an import library if used on this
platform.
CMAKE_IMPORT_LIBRARY_SUFFIX
The suffix for import libraries that you link to.
The suffix to use for the end of an import library if used onthis
platform.
CMAKE_LINK_LIBRARY_SUFFIX
The suffix for libraries that you link to.
The suffix to use for the end of a library, .lib on Windows.
CMAKE_MAJOR_VERSION
The Major version of cmake (i.e. the 2 in 2.X.X)
This specifies the major version of the CMake executable being run.
CMAKE_MAKE_PROGRAM
See CMAKE_BUILD_TOOL.
This variable is around for backwards compatibility, see
CMAKE_BUILD_TOOL.
CMAKE_MINOR_VERSION
The Minor version of cmake (i.e. the 4 in X.4.X).
This specifies the minor version of the CMake executable being run.
CMAKE_PARENT_LIST_FILE
Full path to the parent listfile of the one currently being processed.
As CMake processes the listfiles in your project this variable will
always be set to the listfile that included or somehow invoked the one
currently being processed. See also CMAKE_CURRENT_LIST_FILE.
CMAKE_PROJECT_NAME
The name of the current project.
This specifies name of the current project from the closest inherited
PROJECT command.
CMAKE_RANLIB
Name of randomizing tool for static libraries.
This specifies name of the program that randomizes libraries on UNIX,
not used on Windows, but may be present.
CMAKE_ROOT
Install directory for running cmake.
This is the install root for the running CMake and the Modules
directory can be found here. This is commonly used in this format:
${CMAKE_ROOT}/Modules
CMAKE_SHARED_LIBRARY_PREFIX
The prefix for shared libraries that you link to.
The prefix to use for the name of a shared library, lib on UNIX.
CMAKE_SHARED_LIBRARY_SUFFIX
The suffix for shared libraries that you link to.
The suffix to use for the end of a shared library, .dll on Windows.
CMAKE_SHARED_MODULE_PREFIX
The prefix for loadable modules that you link to.
The prefix to use for the name of a loadable module on this platform.
CMAKE_SHARED_MODULE_SUFFIX
The suffix for shared libraries that you link to.
The suffix to use for the end of a loadable module on this platform
CMAKE_SIZEOF_VOID_P
Size of a void pointer.
This is set to the size of a pointer on the machine, and is determined
by a try compile. If a 64 bit size is found, then the library search
path is modified to look for 64 bit libraries first.
CMAKE_SKIP_RPATH
If true, do not add run time path information.
If this is set to TRUE, then the rpath information is not added to
compiled executables. The defaultis to add rpath information if the
platform supports it.This allows for easy running from the build tree.
CMAKE_SOURCE_DIR
The path to the top level of the source tree.
This is the full path to the top level of the current CMake source
tree. For an in-source build, this would be the same as
CMAKE_BINARY_DIR.
CMAKE_STANDARD_LIBRARIES
Libraries linked into every executable and shared library.
This is the list of libraries that are linked into all executables and
libraries.
CMAKE_STATIC_LIBRARY_PREFIX
The prefix for static libraries that you link to.
The prefix to use for the name of a static library, lib on UNIX.
CMAKE_STATIC_LIBRARY_SUFFIX
The suffix for static libraries that you link to.
The suffix to use for the end of a static library, .lib on Windows.
CMAKE_USING_VC_FREE_TOOLS
True if free visual studio tools being used.
This is set to true if the compiler is Visual Studio free tools.
CMAKE_VERBOSE_MAKEFILE
Create verbose makefiles if on.
This variable defaults to false. You can set this variable to true to
make CMake produce verbose makefiles that show each command line as it
is used.
PROJECT_BINARY_DIR
Full path to build directory for project.
This is the binary directory of the most recent PROJECT command.
PROJECT_NAME
Name of the project given to the project command.
This is the name given to the most recent PROJECT command.
PROJECT_SOURCE_DIR
Top level source directory for the current project.
This is the source directory of the most recent PROJECT command.
[Project name]_BINARY_DIR
Top level binary directory for the named project.
A variable is created with the name used in the PROJECT command, and
is the binary directory for the project. This can be useful when
SUBDIR is used to connect several projects.
[Project name]_SOURCE_DIR
Top level source directory for the named project.
A variable is created with the name used in the PROJECT command, and
is the source directory for the project. This can be useful when
add_subdirectory is used to connect several projects.
------------------------------------------------------------------------------
Copyright
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
The names of Kitware, Inc., the Insight Consortium, or the names of any
consortium members, or of any contributors, may not be used to endorse or
promote products derived from this software without specific prior written
permission.
Modified source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
See Also
The following resources are available to get help using CMake:
Home Page
http://www.cmake.org
The primary starting point for learning about CMake.
Frequently Asked Questions
http://www.cmake.org/Wiki/CMake_FAQ
A Wiki is provided containing answers to frequently asked questions.
Online Documentation
http://www.cmake.org/HTML/Documentation.html
Links to available documentation may be found on this web page.
Mailing List
http://www.cmake.org/HTML/MailingLists.html
For help and discussion about using cmake, a mailing list is provided
at cmake@cmake.org. The list is member-post-only but one may sign up
on the CMake web page. Please first read the full documentation at
http://www.cmake.org before posting questions to the list.
Summary of helpful links:
Home: http://www.cmake.org
Docs: http://www.cmake.org/HTML/Documentation.html
Mail: http://www.cmake.org/HTML/MailingLists.html
FAQ: http://www.cmake.org/Wiki/CMake_FAQ
