ac_help="$ac_help
--disable-mmx Disable MMX optimizations (default enabled for x86)"
ac_help="$ac_help
- --enable-activec Enable altivec optimizations (default enabled for PPC)"
+ --enable-altivec Enable altivec optimizations (default enabled for PPC)"
ac_help="$ac_help
--disable-css Disable DVD CSS decryption (default enabled)"
ac_help="$ac_help