Michael Roth <mroth@xxxxxxxxx> writes:
But how can I tell the configure script that the compiler itself should be optimized for a different cpu architecture?
One way is to set CFLAGS when you compile. The default value for CFLAGS is "-g -O2" (when compiling with gcc).
Example #1: Host and build are athlon-xp, target should be pentium.
make CFLAGS="-g -O2 -march=athlon"
Thank you. This did the job.
I think that if you set the environment variable CFLAGS when you run configure, it will be picked up and stored in the Makefile. Try it by looking at the definition of CFLAGS in the top level Makefile after you run configure.
I'm not sure, I tried this before I posted to this list, and I think it didn't worked well. But I could be wrong.
Michael
