Duncan Coutts wrote:
Yes, it's been common in gentoo land in recent years for ebuilds toignore the user supplied CFLAGS entirely or strip out certain flags to
stop people from shooting themselves in the foot.
Unlike for C, for Haskell compilers there are fewer interesting optimisation or platform specific flags (think -O?, -march=???, -fbe-really-sloppy-with-floating-point etc etc). This is a good thing since there is less desire to fiddle.
I agree, for our various Haskell ebuilds we do not provide any easy way for users to override HCFLAGS.
As someone who nearly always uses -fvia-C, I find there are just as many nifty performance enhancing flags usable for example: -O2 -fvia-C -ffast-math -mfpmath=sse,387 -fomit-frame-pointer -fexpensive-optimizations Keean.