[FFmpeg-user] Configure error with fontconfig

[Ferdi Scholten]

This may not be due to ffmpeg itself, but I would appreciate some help.
> Configure says that pkg-config can’t find fontconfig.pc, but it seems to be
> in the PKG_CONFIG_PATH.
>
> # ./configure --cc=/usr/bin/gcc \
> --prefix=$TARGET \
> --pkg-config-flags="--static" \
> --extra-cflags="-I/usr/local/include" \
> --extra-ldflags="-L/usr/local/lib" \
> --extra-libs="-lpthread -ldl -lstdc++" \
> --enable-static --disable-shared \
> --enable-nonfree --enable-gpl --enable-version3 \
> --enable-libfribidi --enable-libfreetype --enable-libfontconfig \
> --enable-libfdk-aac --enable-libx264 --enable-libx265 --disable-lzma
> ERROR: fontconfig not found using pkg-config
>
> ffbuild/config.log:
> . . .
> require_pkg_config libfontconfig fontconfig fontconfig/fontconfig.h FcInit
> check_pkg_config libfontconfig fontconfig fontconfig/fontconfig.h FcInit
> test_pkg_config libfontconfig fontconfig fontconfig/fontconfig.h FcInit
> pkg-config --exists --print-errors fontconfig
> Package fontconfig was not found in the pkg-config search path.
> Perhaps you should add the directory containing `fontconfig.pc'
> to the PKG_CONFIG_PATH environment variable
> Package 'fontconfig', required by 'virtual:world', not found
> ERROR: fontconfig not found using pkg-config
>
> Here is fontconfig.pc:
> # ll /usr/local/ffmpeg/packages/pkg-config/check/gtk/
> total 224K
> drwxr-xr-x 2 root root  28 Apr 28 11:14 ./
> drwxr-xr-x 7 root root  72 Apr 28 11:14 ../
> -rw-r--r-- 1 root root 232 Apr 28 11:14 atk.pc
> -rw-r--r-- 1 root root 287 Apr 28 11:14 cairo-gobject.pc
> -rw-r--r-- 1 root root 388 Apr 28 11:14 cairo.pc
> -rw-r--r-- 1 root root 269 Apr 28 11:14 fontconfig.pc
>
> The last path in PKG_CONFIG_PATH contains fontconfig.pc:
>
> # echo $PKG_CONFIG_PATH
> /lib:/usr/lib:usr/local:/usr/local/lib:/usr/local/lib/pkgconfig:
> /usr/libdata/pkgconfig:/usr/local/libdata/:/usr/local/libdata/pkgconfig:
> /usr/local/ffmpeg/target/lib:/usr/local/ffmpeg/target/lib/pkgconfig:
> /usr/local/ffmpeg/target/share/pkgconfig:
> /usr/local/ffmpeg/build/pkg-config/check/gtk/
> _______________________________________________

Most likely the fontconfig package on your system is a shared library, it is not distributed as a static library. It therefor cannot be used in a static build with --disable-shared.


Try building ffmpeg with shared libraries if you need fontconfig.