[Insight-users] FLTK link problems.

[Luis Ibanez]

Hi Hans,

The recomended version of FLTK is 1.0.11

FLTK 1.1 added two extra libraries: fltkgl,fltkforms
(for OpenGL and for XForms compatibility) that have
to be added to the link command line.

The current ITK projects don't take these extra
libraries into account.

We are working right now on adding the option of
using FLTK 1.1 so that will be included in the
next Beta release (to be release soon, very soon).

   Luis

======================================================

Hans J. Johnson wrote:
> Hello,
> 
> I am trying to build the examples for ITK, and I am having a problem 
> during the link phase with all programs that require FLTK.   If I 
> manually edit the Makefiles and add "-lfltk -lfltk_forms.a -lfltk_gl.a" 
> before the locations where "-lGL" appears, then the compilation will work.
> 
> To me it seems like the ${FLTK_LIBRARY} from CMakeLists.txt is not being 
> filled or processed correctly.
> 
> During the configuration stage, I do not know what to put into the 
> FLTK_LIBRARY option to make this work properly.
> 
> FLTK_FLUID_EXE                  
> /home/hjohnson/src/buildhome/athlon/DEBUG/bin/fluid
> FLTK_INCLUDE_PATH         /home/hjohnson/src/buildhome/athlon/DEBUG/include
> FLTK_LIBRARY                    
> /home/hjohnson/src/buildhome/athlon/DEBUG/lib
> but this is wrong because FLTK_LIBRARY should be the full path to a 
> single library file.
> 
> I have also tried
> 
> FLTK_LIBRARY                    
> /home/hjohnson/src/buildhome/athlon/DEBUG/lib/libfltk.a
> but this results in unresolved symbols from libfltk_forms.a
> 
> FLTK_LIBRARY                    
> /home/hjohnson/src/buildhome/athlon/DEBUG/lib/libfltk.a 
>  /home/hjohnson/src/buildhome/athlon/DEBUG/lib/libfltk_forms.a 
> /home/hjohnson/src/buildhome/athlon/DEBUG/lib/libfltk_gl.a
> but this results in an error during the generation of the Makefile from 
> within ccmake (something like "can not extract filename from 
> /home/hjohnson/src/buildhome/athlon/DEBUG/lib/libfltk_gl.aCMakeLists.txt")
> 
> Thanks in advance for your help.
> 
> 
> Thanks,
> Hans J. Johnson
> hans-johnson@uiowa.edu
> 
> PS: I am building against fltk-1.1.0rc2
> 
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