[Ffmpeg-devel] [PATCH] build with '--enable-gprof'

[Michael Niedermayer]

Hi

On Mon, Dec 11, 2006 at 06:16:17PM +0300, Dmitry Antipov wrote:
> Michael Niedermayer wrote:
> 
> >On Mon, Dec 11, 2006 at 03:05:58PM +0300, Dmitry Antipov wrote:
> >>Michael Niedermayer wrote:
> >>
> >>>>But ffmpeg compiles without '-fPIC' or '-fpic' even if 
> >>>>'--enable-shared', and only
> >>>>vhook compiles with PIC option(s). Is this a bug :-) ?
> >>>i dont think this is true for x86 on all OSs
> >[...]
> >>Am I doing wrong something ?
> >
> >configure says:
> >
> >OpenBSD)
> >...
> >LIBOBJFLAGS="\$(PIC)"
> >
> >so on OpenBSD for example PIC is used 
> 
> Hm. OpenBSD is the only system that sets
> 
> LIBOBJFLAGS="\$(PIC)"
> 
> explicitly when 'configure' tries to set an OS-specific stuff.
> 
> It looks like other systems should be handled by this 'configure' fragment:
> 
> # PIC flags for shared library objects where they are needed
> if test "$lshared" = "yes" ; then
>     # LIBOBJFLAGS may have already been set in the OS configuration
>     if test -z "$LIBOBJFLAGS" ; then
>         case "$arch" in
>             x86_64|ia64|alpha|sparc*) LIBOBJFLAGS="\$(PIC)" ;;
>         esac
>     fi
> fi
> 
> I believe x86_32 should be included here, just to get PIC "for x86 on all 
> OSs".

rejected, PIC causes several optimization to be disabled

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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