[FFmpeg-user] ERROR: libgsm not found when compiling ffmpeg 3.3.3 on OSX

[Haifeng Li]

Hi,
I’m trying to compile FFmpeg(n3.3.3) in OSX, with default config from https://evermeet.cx/ffmpeg/ <https://evermeet.cx/ffmpeg/>, i.e.:

--cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-libzvbi --enable-version3 --disable-ffplay --disable-indev=qtkit

However I got this error:

ERROR: libgsm not found

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user at ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solve the problem.

I have already installed libgsm with brew(brew install libgsm), and I checked the location, it ’s /usr/local/Cellar/libgsm/1.0.13.

Could any one help me with this issue?