Re: floot_log2() - two functions with the same name in GCC.

[Richard Kenner]

    At first glace it seems that the .c variants represents hand optimized
    C code, which get's never called. I'm quite convinced that it should
    be just removed, since it's never used due to overschadowing by the .h
    variant

You need the .c variant for the cases where inlining cannot be done for
some reason.