[package] ffmpeg/4.4.4: ERROR: libx264 not found and building for macOS, but linking in object file built for free standing

[stephane-archer]

Description

I have described the issues here: conan-io/conan#17556

Package and Environment Details

MacOS

Conan profile

[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=15
os=Macos
os.version=10.15

Steps to reproduce

build this repo on MacOS: https://github.com/JakubOchnik/Cube-LUT-Loader

Logs

Click to expand log

Put your log output here

[stephane-archer]

ffmpeg/4.4.4 is impossible to compile on MacOS

[jcar87]

Hi @stephane-archer - thanks for opening this issue.

Will try to reproduce - but just double checking - is there any reason holding you back from using one of the more recent versions of ffmpeg?

[stephane-archer]

this ffmpeg/4.4.4 is a dependency of opencv https://conan.io/center/recipes/opencv

[stephane-archer]

I have documented the issue in more detail here: conan-io/conan#17556

[valgur]

Note: OpenCV 4.x builds just fine with the latest ffmpeg. A version bump in that recipe would be welcome.

[jcar87]

Thanks @stephane-archer -
could you please paste the entire build log of your project? or at least - need to check the beginning part (where Conan outputs the profiles and the resolved graph) - as well as the error itself
thanks!

[stephane-archer]

With this profile:

[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=15
os=Macos
os.version=10.15

here is the log:
out.log

[stephane-archer]

you can see at the end ERROR: libx264 not found. I would have expected conan to compile libx264 and not that I should provide it. Especially because I want to keep os.version=10.15 low and precompile libx264 doesn't meet this requirement

[stephane-archer]

with this profile: (that provide libx264)

[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=15
os=Macos
os.version=14.0
[buildenv]
CXXFLAGS+= -I/usr/local/opt/x264/include
LDFLAGS+= -L/usr/local/opt/x264/lib
PKG_CONFIG_PATH+=(path)/usr/local/opt/x264/lib/pkgconfig

here is the log:
out.log

[stephane-archer]

you can see the error message at the end: ld: in libswresample/libswresample.a(audio_convert.o), building for macOS, but linking in object file built for free standing, file 'libswresample/libswresample.a' for architecture x86_64