Hi Matju,
When in SIMD mode, and only in SIMD mode, each *.c file is compiled using those settings:
-mfpmath=sse -mmmx -msse
Which is broken in many currently used versions of GCC.
broken in which way? I think only -msse is actually needed for the simd build - this could be easily adjusted in the scons script.
greetings, Thomas