+#cmakedefine _XBT_WIN32 @_XBT_WIN32@ //this variable is set if it is a windows platform
+#cmakedefine _WIN32 @_WIN32@ //this variable is set if it is a 32 bits windows platform
+#cmakedefine _WIN64 @_WIN64@ //this variable is set if it is a 64 bits windows platform
+#cmakedefine __VISUALC__ @__VISUALC__@
+#cmakedefine __BORLANDC__ @__BORLANDC__@
+#ifdef _XBT_WIN32
+ #ifndef __GNUC__
+ #cmakedefine __GNUC__ @__GNUC__@
+ #endif