[FFmpeg-cvslog] r12484 - in trunk: configure libavutil/internal.h

[Ramiro Polla]

mru wrote:
> Author: mru
> Date: Tue Mar 18 03:01:20 2008
> New Revision: 12484
> 
> Log:
> check for prefix on extern symbols in configure
> 
> 
> Modified:
>    trunk/configure
>    trunk/libavutil/internal.h
> 
> Modified: trunk/configure
> ==============================================================================
> --- trunk/configure	(original)
> +++ trunk/configure	Tue Mar 18 03:01:20 2008
> @@ -1491,6 +1491,12 @@ if test "$?" != 0; then
>      die "C compiler test failed."
>  fi
>  
> +check_cc <<EOF || die "Symbol mangling check failed."
> +int ff_extern;
> +EOF
> +sym=$(nm -P $TMPO)
> +extern_prefix=${sym%%ff_extern*}
> +
>  check_asm inline_asm '""'
>  
>  if enabled x86; then
> @@ -2070,6 +2076,7 @@ enabled asmalign_pot &&
>      printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
>      printf '#define ASMALIGN(ZEROBITS) ".align 1<<" #ZEROBITS "\\n\\t"\n' >> $TMPH
>  
> +echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
>  
>  echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

Let the bug reporting season begin...
config.h on MinGW:

#define EXTERN_PREFIX ".bss b 00000000
.data d 00000000
.text t 00000000
_"

Attached patch fixes it in someway, but you'll probably figure out some 
other way.

Ramiro Polla
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