The 10.5 x86 use.mask file defines the following: # Unmask x86 instruction sets -icc -icc-pgo -ifc -mmx -mmxext -sse #-sse2 gcc-apple 4.0.1 can't do these #-ssse3 -svga -kqemu At least as of apple gcc 4.2.1, if not earlier, sse2, ssse3 should all be able to be turned on. From `man gcc` for 4.2.1: "-mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -msse4 -msse4a". I'm mainly looking at ssse3 for ffmpeg. Reproducible: Always
unmasked, thanks for the report.