+#ifndef wxUSE_LIBMSPACK
+# ifndef __UNIX__
+ /* set to 0 on platforms that don't have libmspack */
+# define wxUSE_LIBMSPACK 0
+# else
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_LIBMSPACK must be defined."
+# else
+# define wxUSE_LIBMSPACK 0
+# endif
+# endif
+#endif /* !defined(wxUSE_LIBMSPACK) */
+