* Compile Altivec modules on Darwin. [MacOS X port]

configure.in

@@ -129,6 +129,10 @@ AC_ARG_ENABLE(mmx,
 [  --disable-mmx           Disable MMX optimizations (default enabled for x86)],
 [ if test x$enableval = xyes; then ARCH=${ARCH}" mmx"; PLUGINS=${PLUGINS}${ACCEL_PLUGINS}; fi ],
 [ if test x${host_cpu} = xi686 -o x${host_cpu} = xi586 -o x${host_cpu} = xx86; then ARCH=${ARCH}" mmx"; PLUGINS=${PLUGINS}${ACCEL_PLUGINS}; fi ])
+AC_ARG_ENABLE(altivec,
+[  --enable-activec        Enable altivec optimizations (default enabled for PPC)],
+[ if test x$enableval = xyes; then ARCH=${ARCH}" altivec"; PLUGINS=${PLUGINS}"idctaltivec "; fi ],
+[ if test -d /System/Library/Frameworks/vecLib.framework; then ARCH=${ARCH}" altivec"; PLUGINS=${PLUGINS}"idctaltivec "; fi ])
 AC_ARG_ENABLE(css,
 [  --disable-css           Disable DVD CSS decryption (default enabled)],
 [ if test x$enableval = xyes; then CSS=1; else CSS=0; fi ], [ CSS=1; ])

include/tests.h

@@ -27,6 +27,7 @@
 #define CPU_CAPABILITY_MMX     1<<3
 #define CPU_CAPABILITY_3DNOW   1<<4
 #define CPU_CAPABILITY_MMXEXT  1<<5
+#define CPU_CAPABILITY_ALTIVEC 1<<16
 
 /*****************************************************************************
  * TestVersion: tests if the given string equals the current version