When compiling for an Xserve's CPU, what flags generate code specific to it? / proc/cpuinfo reports it as a 7455, altivec supported. Do I use -mcpu=7450 or -mcpu=750? I assume -faltivec may vectorise where the compiler knows how (another story altogether, or so I've been told). Stephen -- "The time you enjoy wasting is not wasted time" - Bertrand Russell