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| author | Måns Rullgård <mans@mansr.com> | 2008-03-18 02:01:20 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2008-03-18 02:01:20 +0000 |
| commit | b4d96ba2a838d26e469887dfb1c6088005d09f0b (patch) | |
| tree | 4ea3c641829bd0307b48b27ff717b80b1546b4ab | |
| parent | 6fcc9af0123abb25b82c43ef631e12069853d725 (diff) | |
| download | ffmpeg-b4d96ba2a838d26e469887dfb1c6088005d09f0b.tar.gz | |
check for prefix on extern symbols in configure
Originally committed as revision 12484 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rwxr-xr-x | configure | 7 | ||||
| -rw-r--r-- | libavutil/internal.h | 14 |
2 files changed, 10 insertions, 11 deletions
@@ -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 diff --git a/libavutil/internal.h b/libavutil/internal.h index 6f1dd80639..ccb0974ad2 100644 --- a/libavutil/internal.h +++ b/libavutil/internal.h @@ -119,18 +119,10 @@ #endif // Use rip-relative addressing if compiling PIC code on x86-64. -#if defined(__MINGW32__) || defined(__CYGWIN__) || defined(__DJGPP__) || \ - defined(__OS2__) || defined(__APPLE__) || \ - (defined (__OpenBSD__) && !defined(__ELF__)) -# if defined(ARCH_X86_64) && defined(PIC) -# define MANGLE(a) "_" #a"(%%rip)" -# else -# define MANGLE(a) "_" #a -# endif -#elif defined(ARCH_X86_64) && defined(PIC) -# define MANGLE(a) #a"(%%rip)" +#if defined(ARCH_X86_64) && defined(PIC) +# define MANGLE(a) EXTERN_PREFIX #a"(%%rip)" #else -# define MANGLE(a) #a +# define MANGLE(a) EXTERN_PREFIX #a #endif /* debug stuff */ |