On 5/20/2010 8:48 AM, Michael Hertling wrote:
On 05/20/2010 10:58 AM, Lucian Goron wrote:
I now have lucid lynx and I am struggling to get my old code to work on this
system
anyway, when I compile some of it I get:
luc...@schwarz:~/work/ransac$ make
Linking CXX executable elevationMap
CMakeFiles/elevationMap.dir/home/lucian/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/elevationMap.dir/home/lucian/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/elevationMap.dir/home/lucian/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]: *** [elevationMap] Error 1
make[1]: *** [CMakeFiles/elevationMap.dir/all] Error 2
make: *** [all] Error 2
luc...@schwarz:~/work/ransac$
I know, I have a problem with the ffmpeg library...
But my questions is, in someway very stupid, related to the
(.text+0xa720)
part, what does it mean, 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 ?
Line number information must be enabled when compiling, e.g. by means of
GCC's option "-g". Without it, you will just get offsets into the object
code instead, like the 0xa720 above; besides, "text" is an ancient *nix
term for a memory segment containing program code, in contrast to data
segments. Typically, the "-g" option will be spefified when setting the
CMAKE_BUILD_TYPE to "Debug" or "RelWithDebInfo", but see the various
CMAKE_<LANG>_FLAGS, too.
If you link in the library in VTK that has vtkFFMPEGWriter in it, all
the problems should go away. I would not worry about the .text stuff
right now. It is just the place that is referencing the symbols you
don't have. Once you have the symbols, then you won't have a problem.
-Bill
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake
