diff --git a/configure b/configure
index d1d0a471..aecb350b 100755
--- a/configure
+++ b/configure
@@ -38,6 +38,7 @@ Configuration options:
 
 Advanced options:
   --disable-asm            disable platform-specific assembly optimizations
+  --disable-vsx            disable VSX asm
   --enable-lto             enable link-time optimization
   --enable-debug           add -g
   --enable-gprof           add -pg
@@ -675,6 +676,8 @@ case $host_os in
     darwin*)
         SYS="MACOSX"
         libm="-lm"
+        vsx="no"
+        cc_check "" -fastf && CFLAGS="$CFLAGS -fastf"
         if [ "$pic" = "no" ]; then
             cc_check "" -mdynamic-no-pic && CFLAGS="$CFLAGS -mdynamic-no-pic"
         fi
@@ -822,7 +825,7 @@ case $host_cpu in
             AS="${AS-${CC}}"
             AS_EXT=".c"
             if [ $SYS = MACOSX ] ; then
-                CFLAGS="$CFLAGS -faltivec -fastf -mcpu=G4"
+                CFLAGS="$CFLAGS -faltivec -mcpu=G4"
             else
                 CFLAGS="$CFLAGS -maltivec -mabi=altivec"
                 define HAVE_ALTIVEC_H
@@ -1743,6 +1746,7 @@ shared:         $shared
 static:         $static
 bashcompletion: $bashcompletion
 asm:            $asm
+vsx             $vsx
 interlaced:     $interlaced
 avs:            $avs
 lavf:           $lavf