When compiling with -fmudflap configure fill EXTERN_PREFIX with garbage (some mudflap symbol), so just pick out ff_extern symbols in this case. patch by matthieu castet, castet.matthieu free fr
When compiling with -fmudflap configure fill EXTERN_PREFIX with garbage
(some mudflap symbol), so just pick out ff_extern symbols in this case.
patch by matthieu castet, castet.matthieu free fr


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@13072 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg