[CMake] CMAKE -- compiling questions

[Michael Hertling]

On 05/26/2010 12:34 AM, Lucian Goron wrote:
> Back to square one !
> I solved all the VTK problems, and now it gives me the same error as in the
> beginning.
> 
> goron at schwarz:~/work/ransac/build$ make
> Linking CXX executable coloredElevationMap
> CMakeFiles/coloredElevationMap.dir/home/goron/work/common/CommonVTKRoutines.cc.o:
> In function `Create2xRenderWindowAndInteractorMovie(vtkRenderer*,
> vtkRenderer*, char const*, char const*, int, int, int)':
> CommonVTKRoutines.cc:(.text+0xa720): undefined reference to
> `vtkFFMPEGWriter::New()'
> CMakeFiles/coloredElevationMap.dir/home/goron/work/common/CommonVTKRoutines.cc.o:
> In function `Create4xRenderWindowAndInteractorMovie(vtkRenderer*,
> vtkRenderer*, vtkRenderer*, vtkRenderer*, char const*, char const*, int,
> int, int)':
> CommonVTKRoutines.cc:(.text+0xad84): undefined reference to
> `vtkFFMPEGWriter::New()'
> CMakeFiles/coloredElevationMap.dir/home/goron/work/common/CommonVTKRoutines.cc.o:
> In function `CreateRenderWindowAndInteractorMovie(vtkRenderer*, char const*,
> char const*, int, int, int)':
> CommonVTKRoutines.cc:(.text+0xb6e3): undefined reference to
> `vtkFFMPEGWriter::New()'
> collect2: ld returned 1 exit status
> make[2]: *** [coloredElevationMap] Error 1
> make[1]: *** [CMakeFiles/coloredElevationMap.dir/all] Error 2
> make: *** [all] Error 2
> goron at schwarz:~/work/ransac/build$
> 
> Yet again the error itself is not important, but the
> 
> (.text+0xa720)
> (.text+0xad84)
> (.text+0xb6e3)
> 
> are ! wasn't it supposed to show me the line number where the error occurs
> in
> 
> /home/lucian/work/common/CommonVTKRoutines.cc
> 
> how can I see the line numbers ?
> 
> 
> 
> Michael, thank you for your advice. So for I did this
> 
> goron at schwarz:~/work/ransac/build$ cmake .
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /home/goron/work/ransac/build
> goron at schwarz:~/work/ransac/build$
> 
> but the end result is the same. It still won't show me the line numbers were
> the error occurs in
> 
> /home/lucian/work/common/CommonVTKRoutines.cc

Try the following:

goron at schwarz:~/work/ransac/build$ cmake -DCMAKE_BUILD_TYPE=debug .
[...]                                    ^^^^^^^^^^^^^^^^^^^^^^^^
goron at schwarz:~/work/ransac/build$ make VERBOSE=1

This should enable the "-g" option when compiling which, in turn,
results in line numbers for unresolvable references at link time.

Regards,

Michael