#ifndef __GNUC__
-# if defined(__osf__) /* Tru64 */
-# undef c99_fdim
-# undef c99_fma
-# undef c99_fmax
-# undef c99_fmin
-# undef c99_fpclassify
-# undef c99_isfinite
-# undef c99_isinf
-/* Tru64 is missing isunordered but we have emulation. */
-# undef c99_lrint
-# undef c99_lround
-# undef c99_nan /* in libm, but seems broken (no proto, either) */
-# undef c99_nearbyint
-# undef c99_nexttoward
-# undef c99_remquo
-# undef c99_round
-# undef c99_scalbn
-# endif
-
#endif
/* XXX Regarding C99 math.h, Win32 seems to be missing these: