src/aubio_priv.h: use _isnan on windows msvc 9 to avoid linking error

[aubio.git] / src / aubio_priv.h

diff --git a/src/aubio_priv.h b/src/aubio_priv.h
index 982b5fc..530edc9 100644 (file)
--- a/src/aubio_priv.h
+++ b/src/aubio_priv.h
@@ -254,6 +254,11 @@ typedef enum {
 #define IMAG      cimagf
 #endif
 
+/* avoid unresolved symbol with msvc 9 */
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
+#define isnan _isnan
+#endif
+
 /* handy shortcuts */
 #define DB2LIN(g) (POW(10.0,(g)*0.05f))
 #define LIN2DB(v) (20.0*LOG10(v))