I found a way to reduce the amount of processing GNU make does when
building with the LLVM Makefile system: "make -r". We don't need
or use
any of the built-in rules that make has. The -r option omits them. This
means make will perform many thousand fewer (and unnecessary) tests.
When I did:
make ; time make ; time make -r
You should get something like:
make:
real 0m6.484s
user 0m4.787s
sys 0m1.661s
make -r:
real 0m2.896s
user 0m1.803s
sys 0m0.856s
This shaves a few seconds off the makefile processing. This might help
out a bit on slower machines.
Reid.
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