Use the default windows assert for VisualC

Update Scons

intern/moto/SConscript

@@ -4,7 +4,8 @@ Import ('library_env')
 
 moto_env = library_env.Copy ()
 
-source_files = ['intern/MT_CmMatrix4x4.cpp',
+source_files = ['intern/MT_Assert.cpp',
+		'intern/MT_CmMatrix4x4.cpp',
                 'intern/MT_Matrix3x3.cpp',
                 'intern/MT_Matrix4x4.cpp',
                 'intern/MT_Plane3.cpp',

intern/moto/include/MT_assert.h

@@ -35,11 +35,13 @@
 #ifdef	MT_NDEBUG
 
 #define MT_assert(predicate) ((void)0)
+#define BREAKPOINT() ((void)0)
 
 #else 
 
 #include <signal.h>
 #include <stdlib.h>
+#include <assert.h>
 
 // BREAKPOINT() will cause a break into the debugger
 #if defined(__i386) && defined(__GNUC__)
@@ -62,6 +64,11 @@
 #define BREAKPOINT() \
 	abort();
 #endif
+
+
+#if defined(WIN32) && !defined(__GNUC__)
+#define MT_assert(predicate) assert(predicate)
+#else
 	
 // So it can be used from C
 #ifdef __cplusplus
@@ -85,6 +92,7 @@ MT_CDECL int MT_QueryAssert(char *file, int line, char *predicate, int *do_asser
 		BREAKPOINT();									\
 	}											\
 }
+#endif /* windows */
 
 #endif /* MT_NDEBUG */