fix windows build

git-svn-id: http://svn.osgeo.org/qgis/trunk@14688 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

src/core/qgis.h

@@ -30,7 +30,7 @@
 #ifdef WIN32
 #include <float.h>
 #define isnan(f) _isnan(f)
-#define isinf(f) (!_isfinite(f) && !_isnan(f))
+#define isinf(f) (!_finite(f) && !_isnan(f))
 #endif
 
 /** \ingroup core