This is a semi-automatic report based on the latest archive rebuild results [1].
Apologies if it reaches you in error.
Excerpt from the buildlog:
/bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -DLOCALE_DIR=\"/usr/share/locale\" -D__BGAV__ -fvisibility=hidden -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include -I/usr/include -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -I/usr/include/mpeg2dec -I/usr/include/libdca -I/usr/include/orc-0.4 -I/usr/include/schroedinger-1.0 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c -o yml.lo yml.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -DLOCALE_DIR=\"/usr/share/locale\" -D__BGAV__ -fvisibility=hidden -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include -I/usr/include -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -I/usr/include/mpeg2dec -I/usr/include/libdca -I/usr/include/orc-0.4 -I/usr/include/schroedinger-1.0 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c yml.c -fPIC -DPIC -o .libs/yml.o
/bin/bash ../libtool --tag=CC --mode=link gcc -DLOCALE_DIR=\"/usr/share/locale\" -D__BGAV__ -fvisibility=hidden -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include -I/usr/include -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -I/usr/include/mpeg2dec -I/usr/include/libdca -I/usr/include/orc-0.4 -I/usr/include/schroedinger-1.0 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -export-dynamic -version-info 1:0:0 -o libgmerlin_avdec.la -rpath /usr/lib video_libmpeg2.lo audio_vorbis.lo parse_vorbis.lo demux_ogg.lo audio_faad2.lo aac_frame.lo parse_aac.lo video_png.lo pngreader.lo video_openjpeg.lo video_tiff.lo audio_mad.lo demux_ffmpeg.lo audio_a52.lo demux_a52.lo audio_dca.lo parse_dca.lo audio_flac.lo audio_ffmpeg.lo video_ffmpeg.lo audio_real.lo video_real.lo video_xadll.lo in_smb.lo video_theora.lo video_schroedinger.lo audio_speex.lo dvb_channels.lo vdpau.lo audio_gsm.lo RTjpeg.lo a52_header.lo apetag.lo audio.lo audio_gavl.lo audio_pcm.lo audioparser.lo asmrp.lo base64.lo bgav.lo bitstream.lo bsf.lo bsf_avcc.lo bytebuffer.lo chapterlist.lo charset.lo cavs_header.lo codecs.lo demuxer.lo demux_4xm.lo demux_8svx.lo demux_adif.lo demux_adts.lo demux_aiff.lo demux_asf.lo demux_avi.lo demux_avs.lo demux_au.lo demux_daud.lo demux_dsicin.lo demux_dv.lo demux_dxa.lo demux_flac.lo demux_fli.lo demux_flv.lo demux_gif.lo demux_gsm.lo demux_gxf.lo demux_ircam.lo demux_sphere.lo demux_matroska.lo demux_mpegaudio.lo demux_mpegps.lo demux_mpegts.lo demux_mpegvideo.lo demux_mtv.lo demux_mxf.lo demux_nsv.lo demux_nuv.lo demux_p2xml.lo demux_psxstr.lo demux_quicktime.lo demux_r3d.lo demux_ra.lo demux_rm.lo demux_roq.lo demux_shorten.lo demux_smacker.lo demux_smaf.lo demux_smjpeg.lo demux_sol.lo demux_tiertex.lo demux_thp.lo demux_tta.lo demux_vivo.lo demux_voc.lo demux_vmd.lo demux_vqa.lo demux_wav.lo demux_wavpack.lo demux_wve.lo device.lo dirac_header.lo dvframe.lo edl.lo fileindex.lo formattracker.lo h264_header.lo http.lo id3v1.lo id3v2.lo in_cb.lo in_dvb_linux.lo in_dvd.lo in_fd.lo in_file.lo in_ftp.lo in_http.lo in_memory.lo in_mms.lo in_mmsh.lo in_pnm.lo in_rtsp.lo in_vcd.lo input.lo keyframetable.lo languages.lo log.lo matroska.lo md5.lo metadata.lo mpa_header.lo mpeg4_header.lo mpegts_common.lo mpv_header.lo mms.lo mxf.lo nanosoft.lo options.lo packetbuffer.lo packetpool.lo packettimer.lo packet.lo parse_a52.lo parse_cavs.lo parse_dirac.lo parse_h264.lo parse_mpeg4.lo parse_mpv.lo parse_mpegaudio.lo parse_vc1.lo pes_header.lo pnm.lo ptscache.lo qt_atom.lo qt_chan.lo qt_cmov.lo qt_dinf.lo qt_dref.lo qt_edts.lo qt_elst.lo qt_enda.lo qt_esds.lo qt_fiel.lo qt_frma.lo qt_ftab.lo qt_glbl.lo qt_gmhd.lo qt_gmin.lo qt_hdlr.lo qt_language.lo qt_mdhd.lo qt_mdia.lo qt_minf.lo qt_moov.lo qt_mvhd.lo qt_nmhd.lo qt_palette.lo qt_pasp.lo qt_rdrf.lo qt_rmda.lo qt_rmra.lo qt_stbl.lo qt_stco.lo qt_stsc.lo qt_stsd.lo qt_stss.lo qt_stsz.lo qt_stts.lo qt_tcmi.lo qt_timecode.lo qt_tkhd.lo qt_tmcd.lo qt_trak.lo qt_tref.lo qt_udta.lo qt_utils.lo qt_wave.lo redirect.lo rmff.lo r_asx.lo r_m3u.lo r_pls.lo r_qtl.lo r_rtsptext.lo r_ref.lo r_smil.lo rtcp.lo rtp.lo rtpbuffer.lo rtsp.lo sampleseek.lo seek.lo sdp.lo stream.lo subovl_dvd.lo subread.lo subtitle.lo superindex.lo targa.lo tcp.lo timecode.lo track.lo tracktable.lo translation.lo udp.lo utils.lo vc1_header.lo video.lo videoparser.lo video_gavl.lo video_qtraw.lo video_aviraw.lo video_tga.lo video_yuv.lo video_rtjpeg.lo vorbis_comment.lo xing.lo yml.lo -L/usr/lib -lvorbis -lm -lvorbisenc -L/usr/lib -logg -lmpeg2 -lz -lpthread -lpng -lm -lz -lz -lpthread -lopenjpeg -lm -lz -lpthread -ltiff -ldvdread -lfaad -lm -lFLAC -lm -lmad -ldca -lavformat -la52 -lm -lavcodec -ldl -ldl -lcdio -lm -lsmbclient -ltheoradec -logg -lschroedinger-1.0 -lspeex -lpostproc -lswscale -lz -lpthread -lvdpau -lX11 -lXext -lgsm -lm -lz -lpthread -lgavl
libtool: link: gcc -shared -fPIC -DPIC .libs/video_libmpeg2.o .libs/audio_vorbis.o .libs/parse_vorbis.o .libs/demux_ogg.o .libs/audio_faad2.o .libs/aac_frame.o .libs/parse_aac.o .libs/video_png.o .libs/pngreader.o .libs/video_openjpeg.o .libs/video_tiff.o .libs/audio_mad.o .libs/demux_ffmpeg.o .libs/audio_a52.o .libs/demux_a52.o .libs/audio_dca.o .libs/parse_dca.o .libs/audio_flac.o .libs/audio_ffmpeg.o .libs/video_ffmpeg.o .libs/audio_real.o .libs/video_real.o .libs/video_xadll.o .libs/in_smb.o .libs/video_theora.o .libs/video_schroedinger.o .libs/audio_speex.o .libs/dvb_channels.o .libs/vdpau.o .libs/audio_gsm.o .libs/RTjpeg.o .libs/a52_header.o .libs/apetag.o .libs/audio.o .libs/audio_gavl.o .libs/audio_pcm.o .libs/audioparser.o .libs/asmrp.o .libs/base64.o .libs/bgav.o .libs/bitstream.o .libs/bsf.o .libs/bsf_avcc.o .libs/bytebuffer.o .libs/chapterlist.o .libs/charset.o .libs/cavs_header.o .libs/codecs.o .libs/demuxer.o .libs/demux_4xm.o .libs/demux_8svx.o .libs/demux_adif.o .libs/demux_adts.o .libs/demux_aiff.o .libs/demux_asf.o .libs/demux_avi.o .libs/demux_avs.o .libs/demux_au.o .libs/demux_daud.o .libs/demux_dsicin.o .libs/demux_dv.o .libs/demux_dxa.o .libs/demux_flac.o .libs/demux_fli.o .libs/demux_flv.o .libs/demux_gif.o .libs/demux_gsm.o .libs/demux_gxf.o .libs/demux_ircam.o .libs/demux_sphere.o .libs/demux_matroska.o .libs/demux_mpegaudio.o .libs/demux_mpegps.o .libs/demux_mpegts.o .libs/demux_mpegvideo.o .libs/demux_mtv.o .libs/demux_mxf.o .libs/demux_nsv.o .libs/demux_nuv.o .libs/demux_p2xml.o .libs/demux_psxstr.o .libs/demux_quicktime.o .libs/demux_r3d.o .libs/demux_ra.o .libs/demux_rm.o .libs/demux_roq.o .libs/demux_shorten.o .libs/demux_smacker.o .libs/demux_smaf.o .libs/demux_smjpeg.o .libs/demux_sol.o .libs/demux_tiertex.o .libs/demux_thp.o .libs/demux_tta.o .libs/demux_vivo.o .libs/demux_voc.o .libs/demux_vmd.o .libs/demux_vqa.o .libs/demux_wav.o .libs/demux_wavpack.o .libs/demux_wve.o .libs/device.o .libs/dirac_header.o .libs/dvframe.o .libs/edl.o .libs/fileindex.o .libs/formattracker.o .libs/h264_header.o .libs/http.o .libs/id3v1.o .libs/id3v2.o .libs/in_cb.o .libs/in_dvb_linux.o .libs/in_dvd.o .libs/in_fd.o .libs/in_file.o .libs/in_ftp.o .libs/in_http.o .libs/in_memory.o .libs/in_mms.o .libs/in_mmsh.o .libs/in_pnm.o .libs/in_rtsp.o .libs/in_vcd.o .libs/input.o .libs/keyframetable.o .libs/languages.o .libs/log.o .libs/matroska.o .libs/md5.o .libs/metadata.o .libs/mpa_header.o .libs/mpeg4_header.o .libs/mpegts_common.o .libs/mpv_header.o .libs/mms.o .libs/mxf.o .libs/nanosoft.o .libs/options.o .libs/packetbuffer.o .libs/packetpool.o .libs/packettimer.o .libs/packet.o .libs/parse_a52.o .libs/parse_cavs.o .libs/parse_dirac.o .libs/parse_h264.o .libs/parse_mpeg4.o .libs/parse_mpv.o .libs/parse_mpegaudio.o .libs/parse_vc1.o .libs/pes_header.o .libs/pnm.o .libs/ptscache.o .libs/qt_atom.o .libs/qt_chan.o .libs/qt_cmov.o .libs/qt_dinf.o .libs/qt_dref.o .libs/qt_edts.o .libs/qt_elst.o .libs/qt_enda.o .libs/qt_esds.o .libs/qt_fiel.o .libs/qt_frma.o .libs/qt_ftab.o .libs/qt_glbl.o .libs/qt_gmhd.o .libs/qt_gmin.o .libs/qt_hdlr.o .libs/qt_language.o .libs/qt_mdhd.o .libs/qt_mdia.o .libs/qt_minf.o .libs/qt_moov.o .libs/qt_mvhd.o .libs/qt_nmhd.o .libs/qt_palette.o .libs/qt_pasp.o .libs/qt_rdrf.o .libs/qt_rmda.o .libs/qt_rmra.o .libs/qt_stbl.o .libs/qt_stco.o .libs/qt_stsc.o .libs/qt_stsd.o .libs/qt_stss.o .libs/qt_stsz.o .libs/qt_stts.o .libs/qt_tcmi.o .libs/qt_timecode.o .libs/qt_tkhd.o .libs/qt_tmcd.o .libs/qt_trak.o .libs/qt_tref.o .libs/qt_udta.o .libs/qt_utils.o .libs/qt_wave.o .libs/redirect.o .libs/rmff.o .libs/r_asx.o .libs/r_m3u.o .libs/r_pls.o .libs/r_qtl.o .libs/r_rtsptext.o .libs/r_ref.o .libs/r_smil.o .libs/rtcp.o .libs/rtp.o .libs/rtpbuffer.o .libs/rtsp.o .libs/sampleseek.o .libs/seek.o .libs/sdp.o .libs/stream.o .libs/subovl_dvd.o .libs/subread.o .libs/subtitle.o .libs/superindex.o .libs/targa.o .libs/tcp.o .libs/timecode.o .libs/track.o .libs/tracktable.o .libs/translation.o .libs/udp.o .libs/utils.o .libs/vc1_header.o .libs/video.o .libs/videoparser.o .libs/video_gavl.o .libs/video_qtraw.o .libs/video_aviraw.o .libs/video_tga.o .libs/video_yuv.o .libs/video_rtjpeg.o .libs/vorbis_comment.o .libs/xing.o .libs/yml.o -L/usr/lib /usr/lib/i386-linux-gnu/libvorbis.so /usr/lib/i386-linux-gnu/libvorbisenc.so /usr/lib/libmpeg2.so -lpng -lopenjpeg /usr/lib/i386-linux-gnu/libtiff.so -ldvdread -lfaad -lFLAC -lmad -ldca -lavformat -la52 -lavcodec -ldl -lcdio -lsmbclient -ltheoradec -logg -lschroedinger-1.0 -lspeex -lpostproc -lswscale -lvdpau -lX11 -lXext -lgsm -lm -lz -lpthread -lgavl -march=k8 -mtune=k8 -O3 -O2 -O2 -O2 -O2 -O2 -O2 -O2 -O2 -O2 -O2 -Wl,-soname -Wl,libgmerlin_avdec.so.1 -o .libs/libgmerlin_avdec.so.1.0.0
libtool: link: (cd ".libs" && rm -f "libgmerlin_avdec.so.1" && ln -s "libgmerlin_avdec.so.1.0.0" "libgmerlin_avdec.so.1")
libtool: link: (cd ".libs" && rm -f "libgmerlin_avdec.so" && ln -s "libgmerlin_avdec.so.1.0.0" "libgmerlin_avdec.so")
libtool: link: ( cd ".libs" && rm -f "libgmerlin_avdec.la" && ln -s "../libgmerlin_avdec.la" "libgmerlin_avdec.la" )
make[3]: Leaving directory `/build/buildd/gmerlin-avdecoder-1.1.0~dfsg/lib'
make[2]: Leaving directory `/build/buildd/gmerlin-avdecoder-1.1.0~dfsg/lib'
Making all in plugins
make[2]: Entering directory `/build/buildd/gmerlin-avdecoder-1.1.0~dfsg/plugins'
/bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include/libxml2 -DLOCALE_DIR=\"/usr/share/locale\" -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c -o i_avdec.lo i_avdec.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include/libxml2 -DLOCALE_DIR=\"/usr/share/locale\" -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c i_avdec.c -fPIC -DPIC -o .libs/i_avdec.o
/bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include/libxml2 -DLOCALE_DIR=\"/usr/share/locale\" -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c -o avdec_common.lo avdec_common.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../include -I../include -D_FORTIFY_SOURCE=2 -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include/libxml2 -DLOCALE_DIR=\"/usr/share/locale\" -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -c avdec_common.c -fPIC -DPIC -o .libs/avdec_common.o
/bin/bash ../libtool --tag=CC --mode=link gcc -march=k8 -mtune=k8 -O3 -funroll-all-loops -ffast-math -I/usr/include/libxml2 -DLOCALE_DIR=\"/usr/share/locale\" -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -Wall -Wmissing-declarations -Wdeclaration-after-statement -avoid-version -module -export-symbols /usr/share/gmerlin/plugin.sym -o i_avdec.la -rpath /usr/lib/gmerlin/plugins i_avdec.lo avdec_common.lo ../lib/libgmerlin_avdec.la -lgmerlin -lz -lpthread -lgavl
libtool: link: symbol file `/usr/share/gmerlin/plugin.sym' does not exist
make[2]: *** [i_avdec.la] Error 1
make[2]: Leaving directory `/build/buildd/gmerlin-avdecoder-1.1.0~dfsg/plugins'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/gmerlin-avdecoder-1.1.0~dfsg'
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20120205-2228
FAILED [dpkg-buildpackage died]
The full buidlog can be found at https://launchpad.net/ubuntu/+archive/test-rebuild-20120201/+build/3147522/+files/buildlog_ubuntu-precise-i386.gmerlin-avdecoder_1.1.0~dfsg-3build1_FAILEDTOBUILD.txt.gz.
[1] http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20120201-precise.html
/usr/share/
I'm on it.