[FFmpeg-user] new configure issue re libopencore

[Jim Worrall]

When I update ffmpeg, I have a script that gets the latest supporting files where that is possible.  
I would get the libopencore files at 
http://sourceforge.net/projects/opencore-amr/files/latest/download?source=files.
Now I see that is downloading something called fdk-aac instead of the two libopencore libraries.  

So I changed the ffmpeg configure command by deleting the --enable libopencore-amrnb and 
--enable libopencore-amrwb (might have the spelling a bit off) to --enable libfdk-aac.

Now I'm getting a statement at the end that:
"install: Done.
libfdk_aac is incompatible with the gpl and --enable-nonfree is not specified."

I'm not getting the ffmpeg binary out the other end.

I'm  a bit clueless on the licenses and can't understand those documents.  Since
I'm just compiling for personal use, I'm not too worried about it.  Could someone advise
on a good way to resolve this.  I'm afraid if I specify --enable-nonfree something
else will break.

Thanks,
Jim