When compiling ffmpeg with USE=chromum for the first time, it fails at compiling chromium support: make -j2 --quiet V=1 libffmpeg x86_64-pc-linux-gnu-gcc -shared -Wl,-soname,libffmpeg.so -Wl,-Bsymbolic -Wl,-z,now -Wl,-z,relro -Wl,-z,defs -Wl,--gc-sections -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat -Llibavresample -Llibavutil -Llibpostproc -Llibswscale -Llibswresample -Wl,-O1 -Wl,--as-needed -march=core-avx2 -Wl,--as-needed -Wl,-z,noexecstack -Wl,--warn-common -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample -o libffmpeg.so -Wl,--whole-archive libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswresample/libswresample.a -Wl,--no-whole-archive -lavdevice -lavfilter -lavformat -lavcodec -lavresample -lpostproc -lswresample -lswscale -lavutil -lXv -lX11 -lXext -lSDL2 -lpulse -lgnutls -lSDL2 -lvdpau -lX11 -lxcb -lxcb-shm -lxcb-xfixes -lxcb-shape -lasound -lSDL2 -lGL -lxvidcore -lx264 -lvpx -lm -lvpx -lm -lvpx -lm -lvpx -lm -lvorbisenc -lvorbis -ltheoraenc -ltheoradec -logg -lrsvg-2 -lm -lgio-2.0 -lgdk_pixbuf-2.0 -lgobject-2.0 -lglib-2.0 -lcairo -lpulse -lopenh264 -lmp3lame -lfreetype -lgnutls -lgmp -lm -ldl -lbz2 -lz -pthread -pthread /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lavdevice /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lavfilter /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lavresample /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lpostproc /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lswscale Apparently, there are no linking paths to missing libraries, and since 'make' is called with 'libffmpeg', no missing libraries are created before. I believe it was difficult to find the problem because most of the people most likely first installed ffmpeg without support for chromium, and when recompiling with chromium support, there were appropriate libraries in the system location, and linking was working. One solution would be to call make -j2 --quiet V=1 instead of make -j2 --quiet V=1 libffmpeg in chromium/ which will compile all again, or, to include proper LDFLAGS in chromium/Makefile, e.g. include /var/tmp/portage/media-video/ffmpeg-3.4.1/work/ffmpeg-3.4.1/Makefile LDFLAGS += -L../ffmpeg-3.4.1-abi_x86_64.amd64/libavdevice/ LDFLAGS += -L../ffmpeg-3.4.1-abi_x86_64.amd64/libavfilter/ LDFLAGS += -L../ffmpeg-3.4.1-abi_x86_64.amd64/libavresample/ LDFLAGS += -L../ffmpeg-3.4.1-abi_x86_64.amd64/libpostproc/ LDFLAGS += -L../ffmpeg-3.4.1-abi_x86_64.amd64/libswscale/ I guess "../ffmpeg-3.4.1-abi_x86_64.amd64/" cannot be hardcoded and must be created by ebuild, but I don't know which variable/function is responsible for creating this path. I tried both solutions and both worked fine. Versions I tested were 3.3.5 and 3.4.1, I guess all versions supporting chromium are affected.
Okay, I accidentally broke this in 31be70b4de8dc1f3627765a4a35a4b5cf90a170f while dealing with another issue that appeared in 9999. Changing FF_EXTRALIBS back to FFEXTRALIBS fixes it but that leaves 9999 broken again and 9999 also suffers from this issue. I'll see what I can do.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4ee1f92d3a83a75687e14feb178eb5748d9a0957 commit 4ee1f92d3a83a75687e14feb178eb5748d9a0957 Author: James Le Cuirot <chewi@gentoo.org> AuthorDate: 2018-01-18 22:00:00 +0000 Commit: James Le Cuirot <chewi@gentoo.org> CommitDate: 2018-01-18 22:01:05 +0000 media-video/ffmpeg: Revert chromium.patch change and add -r1 for 9999 My change to fix 9999 in 31be70b4de8dc1f3627765a4a35a4b5cf90a170f broke all versions when ffmpeg is not already installed. I have reverted this change for earlier versions and introduced a new patch with a different approach for 9999. Closes: https://bugs.gentoo.org/643750 Package-Manager: Portage-2.3.19, Repoman-2.3.6 media-video/ffmpeg/ffmpeg-9999.ebuild | 2 +- media-video/ffmpeg/files/chromium-r1.patch | 36 ++++++++++++++++++++++++++++++ media-video/ffmpeg/files/chromium.patch | 2 +- 3 files changed, 38 insertions(+), 2 deletions(-)
