diff options
| -rw-r--r-- | src/mesa/main/querymatrix.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/src/mesa/main/querymatrix.c b/src/mesa/main/querymatrix.c index eb36c760409..ef85175714d 100644 --- a/src/mesa/main/querymatrix.c +++ b/src/mesa/main/querymatrix.c @@ -37,8 +37,12 @@ #define INT_TO_FIXED(x) ((GLfixed) ((x) << 16)) #define FLOAT_TO_FIXED(x) ((GLfixed) ((x) * 65536.0)) -#if defined(_MSC_VER) -#if _MSC_VER < 1800 /* Not required on VS2013 and above. */ +#if defined(fpclassify) +/* ISO C99 says that fpclassify is a macro. Assume that any implementation + * of fpclassify, whether it's in a C99 compiler or not, will be a macro. + */ +#elif defined(_MSC_VER) +/* Not required on VS2013 and above. */ /* Oddly, the fpclassify() function doesn't exist in such a form * on MSVC. This is an implementation using slightly different * lower-level Windows functions. @@ -71,16 +75,8 @@ fpclassify(double x) return FP_NAN; } } -#endif /* _MSC_VER < 1800 */ - -#elif defined(__APPLE__) || defined(__CYGWIN__) || defined(__FreeBSD__) || \ - defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \ - (defined(__sun) && defined(__C99FEATURES__)) || defined(__MINGW32__) || \ - (defined(__sun) && defined(__GNUC__)) || defined(ANDROID) || defined(__HAIKU__) - -/* fpclassify is available. */ -#elif !defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 600 +#else enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} fpclassify(double x) |