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[PATCH] fix altivec.h detection
Patch from Gentoo:
http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-libs/libmpeg2/files/libmpeg2-0.5.1-altivec.patch?revision=1.1&view=markup
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
--- a/configure.ac.bak 2010-05-25 17:12:14.756245990 +0000
+++ b/configure.ac 2010-05-25 17:11:51.629581723 +0000
@@ -79,11 +79,10 @@
CFLAGS="$OPT_CFLAGS $TRY_CFLAGS $CFLAGS"
AC_MSG_CHECKING([if <altivec.h> is needed])
AC_TRY_COMPILE([],
- [typedef vector int t;
- vec_ld(0, (unsigned char *)0);],
+ [vector int t; t = vec_add(t,t);],
[have_altivec=yes; AC_MSG_RESULT(no)],
[AC_TRY_COMPILE([#include <altivec.h>],
- [typedef vector int t; vec_ld(0, (unsigned char *)0);],
+ [vector int t; t = vec_add(t,t);],
[AC_DEFINE([HAVE_ALTIVEC_H],,
[Define to 1 if you have the <altivec.h> header.])
have_altivec=yes; AC_MSG_RESULT(yes)],
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