Hi, I think this has been discussed already [1] but in the end never was applied or even finished discussing. So I'd like to revive the topic and apply the necessary changes in a few days if nobody objects strongly.
Rationale: we have a growing number of CPU-corresponding flags that all are fit as global USE flags by definition and are usually set once by user. As far as I'm aware, CPUs don't grow new instruction sets once installed, so in most of the cases user doesn't need to be concerned by additional cryptic flag names once he set up his CPU. Solution: per-arch USE_EXPANDs for flags, e.g.: CPU_FLAGS_X86="3dnow 3dnowext avx ..." CPU_FLAGS_ARM="neon ..." # arm* flags? CPU_FLAGS_MIPS="..." # mips* flags? Any specific comments? I can handle x86 but I'd appreciate specific arch teams replying about more exotic arches. [1]:http://thread.gmane.org/gmane.linux.gentoo.devel/69141 -- Best regards, Michał Górny
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