The Intel documentation says that the prototype should be void _mm_prefetch(const char*,int);
GCC uses void _mm_prefetch(const void*,enum _mm_hint); The second argument is special because it has to be a compile-time constant (it's actually part of the opcode). I ask because I just removed the (enum _mm_hint) in favor of (int) in Configure.py. If we really need to cast to the enum, then I'll have to add a third variant to support GCC, Intel, and Clang. Jed
