* openlibm_fenv.h: fix PowerPC macro for Darwin * openlibm_fenv_powerpc.h: check if __BYTE_ORDER__ is actually defined * fpmath.h: fix PowerPC macro for Darwin
* openlibm_fenv.h: fix PowerPC macro for Darwin * openlibm_fenv_powerpc.h: check if __BYTE_ORDER__ is actually defined * fpmath.h: fix PowerPC macro for Darwin