On Sat, Mar 13, 2010 at 11:53:27AM +0100, Reinhard Tartler wrote:
On Sat, Mar 13, 2010 at 11:17:59 (CET), Jonas Smedegaard wrote:

On Fri, Mar 12, 2010 at 08:48:40PM +0000, siret...@users.alioth.debian.org 
wrote:
diff --git a/debian/patches/fix-ftbfs-altivec.patch 
b/debian/patches/fix-ftbfs-altivec.patch

++#if ARCH_PPC && defined COMPILE_ALTIVEC
     if (flags & SWS_CPU_CAPS_ALTIVEC)
         return swScale_altivec;
     else

Doesn't above mean that if the compiler host supports altivec then the
compiled binary won't work without altivec?

Yes and no. ffmpeg builds two different flavors on powerpc, one that is
configured with --enable altivec and gets installed into
/usr/lib/altivec and another one configured --without-altivec and gets
installed to /usr/lib.

/lib/ld-linux.so queries the kernel for hardware capabilities and sets
the .so search path appropriately.

Cool!

thanks for the explanation. :-)


 - Jonas

--
* Jonas Smedegaard - idealist & Internet-arkitekt
* Tlf.: +45 40843136  Website: http://dr.jones.dk/

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