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rated 0 times [  37] [ 0]  / answers: 1 / hits: 24179  / 2 Years ago, tue, february 8, 2022, 9:59:47

I am following this compilation guide for FFmpeg. After compiling all the required dependencies, I get the following error in the last section.


ERROR: gnutls not found using pkg-config

This error occurs when I run the configure command as below :


PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure 

  --prefix="$HOME/ffmpeg_build" 

  --pkg-config-flags="--static" 

  --extra-cflags="-I$HOME/ffmpeg_build/include" 

  --extra-ldflags="-L$HOME/ffmpeg_build/lib" 

  --extra-libs="-lpthread -lm" 

  --bindir="$HOME/bin" 

  --enable-gpl 

  --enable-gnutls 

  --enable-libaom 

  --enable-libass 

  --enable-libfdk-aac 

  --enable-libfreetype 

  --enable-libmp3lame 

  --enable-libopus 

  --enable-libvorbis 

  --enable-libvpx 

  --enable-libx264 

  --enable-libx265 

  --enable-nonfree

I am compiling FFmpeg on a fresh install of Ubuntu 20.04.


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 Answers
2

In the ffbuild directory (path : ffmpeg_sources/ffmpeg/ffbuild/), inspecting the config.log gives more info on the error message :


/usr/bin/ld: cannot find -lunistring

collect2: error: ld returned 1 exit status

ERROR: gnutls not found using pkg-config

With help from ffmpeg's IRC channel, installing the libunistring-dev package fixed the problem.


sudo apt-get install libunistring-dev

[#3140] Wednesday, February 9, 2022, 2 Years  [reply] [flag answer]
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