mesa: move signbit() macro to c99_math.h

Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-02-24 15:11:45 -07:00
parent 612143b2d0
commit f847ddb64d
2 changed files with 8 additions and 8 deletions
--- a/include/c99_math.h
+++ b/include/c99_math.h
@@ -202,4 +202,12 @@ llrintf(float f)
 #endif /* C99 */


+/*
+ * signbit() is a macro on Linux.  Not available on Windows.
+ */
+#ifndef signbit
+#define signbit(x) ((x) < 0.0f)
+#endif
+
+
 #endif /* #define _C99_MATH_H_ */