+#define wxUSE_FILESYSTEM 1 // better have this is you want to compile wxHTML
+
+#define wxUSE_PCX 1 // Utilize PCX images
+
+#define wxUSE_PNM 1 // Utilize PNM images
+
+#define wxUSE_GIF 1 // Utilize GIF images
+
+#if defined(__VISAGECPP__) && (__IBMCPP__ < 400 || __IBMC__ < 400 )
+#define wxUSE_LONGLONG 1
+#endif
+
+#define wxUSE_NET_API 1 // Utilize OS/2's UPM netapi's