How to change complier to GCC?
I want to use SSE to accelerate my computation .But I only find SSE heads (such as xmmintrin.h )in folder \QNX650\host\
win32\x86\usr\lib\gcc\i486-pc-nto-qnx6.5.0\4.4.2\include . 

Is it means that I must change complier to GCC?  and How can I do it?