[mythtv] Build error on Fedora rawhide

[David Highley]

"Gary Buhrmaster wrote:"
> 
> On Sun, May 11, 2014 at 4:40 PM, Richard Shaw <hobbes1069 at gmail.com> wrote:
> > I was working on building a new fixes release when I ran into this on
> > Rawhide[1]... Building for F20 works fine...
> >
> ....
> >
> > Any ideas?
> 
> Not quickly, and I have to go do some errands, but here are my
> initial thoughts:
> 
> First, one needs to be careful when running a parallel make to actually
> include the "interesting" output lines.  In particular, the ones you *really*
> wanted were:
> 
> g++ -Wl,-O1 -Wl,-z,relro -o mythavtest main.o commandlineparser.o
> -L../../libs/libmyth -L../../libs/libmythtv
> -L../../external/FFmpeg/libavutil -L../../external/FFmpeg/libavcodec
> -L../../external/FFmpeg/libavformat -L../../external/FFmpeg/libswscale
> -L../../external/FFmpeg/libswresample -L../../libs/libmythbase
> -L../../libs/libmythui -L../../libs/libmythupnp
> -L../../libs/libmythmetadata -L../../libs/libmythservicecontracts
> -L../../libs/libmythprotoserver -lmythswscale -lmythavformat
> -lmythavcodec -lmythavutil -lmythswresample -lmythtv-0.27
> -lmythupnp-0.27 -lmythbase-0.27 -lmythui-0.27 -lmyth-0.27
> -lmythmetadata-0.27 -lmythservicecontracts-0.27 -lmythprotoserver-0.27
> -L../../libs/libmythfreemheg -lmythfreemheg-0.27
> -L../../external/libhdhomerun -lmythhdhomerun-0.27 -lXext -lXinerama
> -lXxf86vm -lXv -lXrandr -lX11 -lxml2 -ldns_sd -lcrypto -lass
> -lfftw3_threads -lfftw3f -lfftw3 -lva -lpulse -ljack -lasound
> -lfreetype -lxvidcore -lx264 -lvpx -lvorbisenc -lvorbis -ltheoraenc
> -ltheoradec -logg -lmp3lame -lcrystalhd -lm -luuid -pthread -lz -ldl
> -lraw1394 -liec61883 -lavc1394 -lrom1394 -L/usr/X11R6/lib
> -L/builddir/build/BUILD/mythtv-0.27/mythtv/external/qjson/lib64
> -lmythqjson -L/usr/lib64 -lpthread -lGL -lQtSql -lQtXml -lQtOpenGL
> -lQtGui -lQtNetwork -lQtCore
> ......
> main.o: In function `VideoOutput::StartDisplayingFrame()':
> /builddir/build/BUILD/mythtv-0.27/mythtv/programs/mythavtest/../../libs/libmythtv/videooutbase.h:199:
> undefined reference to `VideoBuffers::StartDisplayingFrame()'
> main.o: In function `VideoOutput::DoneDisplayingFrame(VideoFrame_*)':
> /builddir/build/BUILD/mythtv-0.27/mythtv/programs/mythavtest/../../libs/libmythtv/videooutbase.h:203:
> undefined reference to
> `VideoBuffers::DoneDisplayingFrame(VideoFrame_*)'
> main.o: In function `VideoOutput::StartDisplayingFrame()':
> /builddir/build/BUILD/mythtv-0.27/mythtv/programs/mythavtest/../../libs/libmythtv/videooutbase.h:199:
> undefined reference to `VideoBuffers::StartDisplayingFrame()'
> main.o: In function `VideoOutput::DoneDisplayingFrame(VideoFrame_*)':
> /builddir/build/BUILD/mythtv-0.27/mythtv/programs/mythavtest/../../libs/libmythtv/videooutbase.h:203:
> undefined reference to
> `VideoBuffers::DoneDisplayingFrame(VideoFrame_*)'
> collect2: error: ld returned 1 exit status
> make[2]: *** [mythavtest] Error 1
> make[2]: Leaving directory
> `/builddir/build/BUILD/mythtv-0.27/mythtv/programs/mythavtest'
> make[1]: *** [sub-mythavtest-make_default] Error 2
> 
> 
> 
> [I deleted the ClassicSceneDetector compile line, which is not
> relevant, I think]
> 
> 
> And the link line looks right, but I must be missing something, since
> the error message indicates (or, rather, suggests) that libmythtv-0.27.so
> does not contain the right objects.  I suspect that gcc 4.9 (new in
> rawhide, I think) has done something special again, and I will have
> to actually read the release notes and/or the PRs against gcc.
> Unless someone else gets there first :-)

If you want to find code issues start using clang/LLVM. We have been
using it on an experimental basis and it is finding many undetected
coding issues.

> 
> Gary
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> 


-- 

Regards,

David Highley
Highley Recommended, Inc.       Phone: (206) 669-0081
2927 SW 339th Street            WEB: http://www.highley-recommended.com
Federal Way, WA 98023-7732