Ajout dans os_spec.h (a inclure partout !)

d'un define pour isnan sous windows

include/Utils/os_spec.h

 
+#ifndef _CGoGN_OS_SPEC__
+#define _CGoGN_OS_SPEC__
+
 // SPECIFIC FOR WINDOWS
 
 #ifdef WIN32
@@ -7,7 +10,10 @@
 	#include <windows.h>
 	#include <stdio.h>
 	#include <limits>
+	#define _USE_MATH_DEFINES
 	#include <cmath>
+	#define isnan(X) _isnan(X)
+
 	//#ifndef PI_DEFINED
 	//#define PI_DEFINED
 	//double M_PI=3.14159265359;
@@ -16,6 +22,4 @@
 
 // SPECIFIC FOR MAC 
 
-// SPECIFIC UBUNTU ???
-// for libDevil 
-#define ILUT_USE_OPENGL
+#endif
\ No newline at end of file

include/Utils/qem.h

@@ -25,6 +25,8 @@
 #ifndef __QEM__
 #define __QEM__
 
+#include "Utils/os_spec.h" // allow compilation under windows
+
 #include "Geometry/vector_gen.h"
 #include "Geometry/matrix.h"
 #include "Geometry/plane_3d.h"
@@ -153,9 +155,6 @@ private:
 
 	bool optimize(VEC4& v) const
 	{
-#ifdef WIN32
-#define isnan(X) _isnan(X)
-#endif
 		if (isnan(A(0,0)))
 			return false ;