Add windows maths include

diff --git a/common/clitkCommon.cxx b/common/clitkCommon.cxx
index 96980bbbb6b47f3c7c20106f0ef9dd0e2cabd09d..af462a481173b96646efe832bab7fc311153a7df 100644 (file)
--- a/common/clitkCommon.cxx
+++ b/common/clitkCommon.cxx
@@ -21,6 +21,11 @@
 
 #include <itksys/SystemTools.hxx>
 
+#ifndef _WIN32
+  #define _USE_MATH_DEFINES
+  #include <cmath>
+#endif
+
 // clitk include 
 #include "clitkCommon.h"