[FFmpeg-devel] [PATCH] fix configure when compiling with -fmudflap

[Måns Rullgård]

matthieu castet <castet.matthieu at free.fr> writes:

> Hi,
>
> if I compile ffmpeg with -fmudflap [1], configure fill EXTERN_PREFIX
> with garbage (some mudflap symbol).
>
> The attach patch should fix the problem.
>
> Matthieu
>
> [1]   configuration: --enable-gpl --enable-shared
> --prefix=/usr/local/stow/ffmpegcvs --enable-postproc --cpu=athlon-xp
> --extra-cflags=-fmudflap -fmudflapir
> -I/usr/lib/gcc/i486-linux-gnu/4.3/include --extra-ldflags=-fmudflap
> -fmudflapir -lmudflap -L/usr/lib/gcc/i486-linux-gnu/4.3
>
> Index: configure
> ===================================================================
> --- configure	(r?vision 13049)
> +++ configure	(copie de travail)
> @@ -1473,7 +1473,7 @@
>  check_cc <<EOF || die "Symbol mangling check failed."
>  int ff_extern;
>  EOF
> -sym=$($nm -P -g $TMPO)
> +sym=$($nm -P -g $TMPO | grep ff_extern)
>  extern_prefix=${sym%%ff_extern*}
>  
>  check_asm inline_asm '""'

OK

-- 
M?ns Rullg?rd
mans at mansr.com