>> This probably has to due with what happens on a G4 system with a >> kernel not build with Altivec.. However, I dont remember exactly what >> behavior is desired.
A kernel not build with AltiVec support will just SIGILL any user process that tries to use it (and MSR[VEC] = 0). The code here can safely be #ifdef'ed out (but note I only looked at the code, I didn't test it ;-) ) Segher