Just FYI-- I looked at this briefly, and from what I can tell, what you
really want to be doing is linking against Xft, not against fontconfig.
Also, I think you only want to link against it when building the Unix
viewer, not the other versions (pretty sure the patch below would cause
a Windows build, for instance, to fail.)
I think it may be an issue with the main CMakeLists.txt that occurs when
building against the in-tree version of FLTK. It doesn't appear to be
explicitly linking with Xft and other libraries in that case. Since I
can't repro the original issue, I can't really say what the right fix
is. I'm just throwing ideas out there.
On 2/28/12 10:34 AM, Paulo Edgar Castro wrote:
> Hi there.
>
> I was asked in the channel to raise this issue here...
>
> I had been having some trouble trying to build the viewer. Kept on being
> stopped by the following.
>
> [100%] Building CXX object
> vncviewer/CMakeFiles/vncviewer.dir/X11PixelBuffer.cxx.o
> Linking CXX executable vncviewer
> /usr/bin/ld: ../common/fltk/src/libfltk_static.a(fl_font.cxx.o):
> undefined reference to symbol 'FcUtf8ToUcs4'
> /usr/bin/ld: note: 'FcUtf8ToUcs4' is defined in DSO
> /usr/lib64/libfontconfig.so.1 so try adding it to the linker command line
> /usr/lib64/libfontconfig.so.1: could not read symbols: Invalid operation
> collect2: ld returned 1 exit status
> make[2]: *** [vncviewer/vncviewer] Error 1
> make[1]: *** [vncviewer/CMakeFiles/vncviewer.dir/all] Error 2
> make: *** [all] Error 2
>
> A couple of gents in the channel help me out and suggested I'd add
> fontconfig to the line
>
> -target_link_libraries(vncviewer rfb network rdr os Xregion
> ${FLTK_LIBRARIES} ${GETTEXT_LIBRARIES})
> +target_link_libraries(vncviewer rfb network rdr os Xregion fontconfig
> ${FLTK_LIBRARIES} ${GETTEXT_LIBRARIES})
>
> in vncviewer/CMakeLists.txt
>
> which resulted in successful linking.
>
> Should fontconfig be added there ?
>
> Regards,
>
>
> PECastro
>
>
>
>
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