#elif defined(__APPLE__) || defined(__CYGWIN__) || defined(__FreeBSD__) || \
defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \
(defined(__sun) && defined(__C99FEATURES__)) || defined(__MINGW32__) || \
- (defined(__sun) && defined(__GNUC__))
+ (defined(__sun) && defined(__GNUC__)) || defined(ANDROID) || defined(__HAIKU__)
/* fpclassify is available. */