CMakeUserFindLibSVM

1. - Find LibSVM
2. LibSVM is a Library for Support Vector Machines
3. available at http://www.csie.ntu.edu.tw/~cjlin/libsvm/
5. The module defines the following variables:
6. LIBSVM_FOUND - the system has LibSVM
7. LIBSVM_INCLUDE_DIR - where to find svm.h
8. LIBSVM_INCLUDE_DIRS - libsvm includes
9. LIBSVM_LIBRARY - where to find the LibSVM library
10. LIBSVM_LIBRARIES - aditional libraries
11. LIBSVM_MAJOR_VERSION - major version
12. LIBSVM_MINOR_VERSION - minor version
13. LIBSVM_PATCH_VERSION - patch version
14. LIBSVM_VERSION_STRING - version (ex. 2.9.0)
15. LIBSVM_ROOT_DIR - root dir (ex. /usr/local)

1. =============================================================================
2. Copyright 2005-2012 Kitware, Inc.
4. Distributed under the OSI-approved BSD License (the "License");
5. see accompanying file Copyright.txt for details.
7. This software is distributed WITHOUT ANY WARRANTY; without even the
8. implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
9. See the License for more information.
10. =============================================================================
11. (To distributed this file outside of CMake, substitute the full
12. License text for the above reference.)

1. set LIBSVM_INCLUDE_DIR

find_path ( LIBSVM_INCLUDE_DIR

 NAMES
   svm.h
 PATHS
   ${LIBSVM_ROOT_DIR}/include
 PATH_SUFFIXES
   libsvm
   libsvm-2.0/libsvm
 DOC
   "LibSVM include directory"

)

1. set LIBSVM_INCLUDE_DIRS

if ( LIBSVM_INCLUDE_DIR )

 set ( LIBSVM_INCLUDE_DIRS ${LIBSVM_INCLUDE_DIR} )

endif ()

1. version

set ( _VERSION_FILE ${LIBSVM_INCLUDE_DIR}/svm.h ) if ( EXISTS ${_VERSION_FILE} )

 # LIBSVM_VERSION_STRING macro defined in svm.h since version 2.8.9
 file ( STRINGS ${_VERSION_FILE} _VERSION_STRING REGEX ".*define[ ]+LIBSVM_VERSION[ ]+[0-9]+.*" )
 if ( _VERSION_STRING )
   string ( REGEX REPLACE ".*LIBSVM_VERSION[ ]+([0-9]+)" "\\1" _VERSION_NUMBER "${_VERSION_STRING}" )
   math ( EXPR LIBSVM_MAJOR_VERSION "${_VERSION_NUMBER} / 100" )
   math ( EXPR LIBSVM_MINOR_VERSION "(${_VERSION_NUMBER} % 100 ) / 10" )
   math ( EXPR LIBSVM_PATCH_VERSION "${_VERSION_NUMBER} % 10" )
   set ( LIBSVM_VERSION_STRING "${LIBSVM_MAJOR_VERSION}.${LIBSVM_MINOR_VERSION}.${LIBSVM_PATCH_VERSION}" )
 endif ()

endif ()

1. check version

set ( _LIBSVM_VERSION_MATCH TRUE ) if ( LibSVM_FIND_VERSION AND LIBSVM_VERSION_STRING )

 if ( LibSVM_FIND_VERSION_EXACT )
   if ( NOT ${LibSVM_FIND_VERSION} VERSION_EQUAL ${LIBSVM_VERSION_STRING} )
     set ( _LIBSVM_VERSION_MATCH FALSE )
   endif ()
 else ()
   if ( ${LibSVM_FIND_VERSION} VERSION_GREATER ${LIBSVM_VERSION_STRING} )
     set ( _LIBSVM_VERSION_MATCH FALSE )
   endif ()
 endif ()

endif ()

1. set LIBSVM_LIBRARY

find_library ( LIBSVM_LIBRARY

 NAMES
   svm
 PATHS
   ${LIBSVM_ROOT_DIR}/lib
 DOC
   "LibSVM library location"

)

1. set LIBSVM_LIBRARIES

set ( LIBSVM_LIBRARIES ${LIBSVM_LIBRARY} )

1. link with math library on unix

if ( UNIX )

 list ( APPEND LIBSVM_LIBRARIES "-lm" )

endif ()

1. try to guess root dir from include dir

if ( LIBSVM_INCLUDE_DIR )

 string ( REGEX REPLACE "(.*)/include.*" "\\1" LIBSVM_ROOT_DIR ${LIBSVM_INCLUDE_DIR} )

1. try to guess root dir from library dir

elseif ( LIBSVM_LIBRARY )

 string ( REGEX REPLACE "(.*)/lib[/|32|64].*" "\\1" LIBSVM_ROOT_DIR ${LIBSVM_LIBRARY} )

endif ()

1. handle REQUIRED and QUIET options

include ( FindPackageHandleStandardArgs ) find_package_handle_standard_args ( LibSVM DEFAULT_MSG LIBSVM_LIBRARY

 _LIBSVM_VERSION_MATCH
 LIBSVM_INCLUDE_DIR
 LIBSVM_INCLUDE_DIRS
 LIBSVM_LIBRARIES
 LIBSVM_ROOT_DIR

)

mark_as_advanced (

 LIBSVM_LIBRARY
 LIBSVM_LIBRARIES
 LIBSVM_INCLUDE_DIR
 LIBSVM_INCLUDE_DIRS
 LIBSVM_ROOT_DIR
 LIBSVM_VERSION_STRING
 LIBSVM_MAJOR_VERSION
 LIBSVM_MINOR_VERSION
 LIBSVM_PATCH_VERSION

)

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