#include "rrd_nan_inf.h"
-#if defined(WIN32)
+#if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
+
+#include <math.h>
double set_to_DNAN(void) { return (double)fmod(0.0,0.0); }
-double set_to_DINF(void) { return (double)log(0.0); }
+double set_to_DINF(void) { return (double)fabs((double)log(0.0)); }
#else