diff --git a/src/isinf.h b/src/isinf.h
index 5893393f0026c8962584f523394ea689529b1fe0..92c885701d1bfcc36369648c3095c65ae784f92b 100644 (file)
--- a/src/isinf.h
+++ b/src/isinf.h
#include <ieeefp.h>
#define isinf(x) ((fpclass(x) == FP_NINF) || (fpclass(x) == FP_PINF))
+#elif defined(__APPLE__) && __GNUC__ == 3
+#define isinf(x) __isinf(x)
#endif
#endif /* __ISINF_H__ */