Home/ Questions/Q 7614251
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-31T02:21:23+00:00

I’m compiling FFmpeg from source. ./configure –enable-shared –enable-gpl –enable-version3 –enable-nonfree –enable-x11grab –enable-libfaac –enable-libmp3lame –enable-libopencore-amrnb

  • 0

I’m compiling FFmpeg from source. 

./configure --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-x11grab --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264
make
make install

ldd /usr/local/bin/ffmpeg gave me this

linux-gate.so.1 =>  (0xb7717000)
libavdevice.so.53 => not found
libavfilter.so.2 => not found
libavformat.so.54 => not found
libavcodec.so.54 => not found
libpostproc.so.52 => not found
libswresample.so.0 => not found
libswscale.so.2 => not found
libavutil.so.51 => not found
libm.so.6 => /lib/i386-linux-gnu/tls/i686/nosegneg/libm.so.6 (0xb76e3000)
libpthread.so.0 => /lib/i386-linux-gnu/tls/i686/nosegneg/libpthread.so.0 (0xb76ca000)
libc.so.6 => /lib/i386-linux-gnu/tls/i686/nosegneg/libc.so.6 (0xb7569000)
/lib/ld-linux.so.2 (0xb7718000)

Setting $LD_LIBRARY_PATH to /usr/local/lib corrected the “not found” errors, but for the reasons mentioned here, I don’t want to set $LD_LIBRARY_PATH permanantly.

I recomiled with the same commands, this time with $LD_RUN_PATH set to /usr/local/lib.
make seem to have ignored $LD_RUN_PATH when compiling.

Is there a way to use $LD_RUN_PATH without making extensive changes to the Makefile?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Do you have a reason to be compiling the binary in shared mode (like wanting to build software to link against them)? If a static ‘ffmpeg’ binary will work just as well for you, configure without the –enable-shared option to eliminate these dependencies.

    Otherwise, you will need to let your system know where the shared libraries live, either by setting LD_LIBRARY_PATH in the environment, prefixing executions of ‘ffmpeg’ with LD_LIBRARY_PATH (e.g., “LD_LIBRARY_PATH=/usr/local/lib /usr/local/bin/ffmpeg”), or update your system’s library path with the right location.

    There is one more solution that is at the very bottom of the page you linked in your post: “LDFLAGS=’-L/my/strange/path/lib -Wl,-rpath /my/strange/path/lib'”. For FFmpeg, and for your situation, pass this extra parameter at configure time:

    --extra-ldflags="-L/usr/local/lib -Wl,-rpath /usr/local/lib"

    And the resulting ‘ffmpeg’ binary will know where to find the shared libraries.

    Many solutions to this one.

    • 0