Hi, in make.conf for optimizing for G4 cpus, you can use the flag -mcpu=7400, for recent G3 cpus, -mcpu=750 is also fine. You can find out by doing a 'cat /proc/cpuinfo'. I'm using: CFLAGS=" -O2 -pipe -mcpu=750 -mmultiple -mstring " And my cpuinfo is saying: cpu : 750CX temperature : 12 C (uncalibrated) clock : 499MHz revision : 34.21 (pvr 0008 2215) bogomips : 996.14 machine : PowerBook4,1 motherboard : PowerBook4,1 MacRISC2 MacRISC Power Macintosh detected as : 257 (iBook 2) pmac flags : 00000003 L2 cache : 256K unified memory : 384MB pmac-generation : NewWorld (it's an ibook2 with a G3 processor) Take a look at http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html. Best regards, Guillaume
CFLAGS=" -O2 -pipe -mcpu=750 -mmultiple -mstring " is fine for gcc 2.95.x, but in fact breaks many things in gcc 3.2 There are new flags setup on the latest ISO's that reflect this stuff, please check them out, they will also be added to an upcoming portage release (which includes make.conf files)
