No subject

        if test "x$asm_optimisation$sse_os" = "xyesyes" ; then
                XIPH_ADD_CFLAGS([-msse2])
                fi

-msse2 tells the compiler that it can generate SSE2 instructions.
The resulting code will _not_ run on CPUs without SSE2.  This is
counter to the assembly optimizations themselves, which check at
runtime if extensions like SSE etc. are available.

This doesn't matter for x86-64, which includes SSE2 by definition,
but it should affect ia32.

-- 
Christian "naddy" Weisgerber                          naddy at mips.inka.de