[Ffmpeg-devel] problem compiling in --enable-amr_nb

[Matt Berry]

when i attempt to configure ffmpeg with the option:
--enable-amr_nb in linux I get the following error:
nat1610:# ./configure --enable-shared --enable-libmp3lame --enable-libfaac --enable-libfaad --enable-amr_wb --enable-amr_nb --disable-ffplay --enable-small --enable-memalign-hack --enable-gpl --enable-xvid --enable-libdts --enable-liba52 --disable-vhook
ERROR: libamrnb not found
If you think configure made a mistake, make sure you are using the latest
version from SVN.  If the latest version fails, report the problem to the
ffmpeg-devel at mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.err" produced by configure as this will help
solving the problem.

I have done this: http://lists.mplayerhq.hu/pipermail/ffmpeg-user/2006-November/005291.html

But it did not seem to help. Any info you could give would be a great help. 

Thanks
matt berry