Missing create_wps_objects() prototype.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7121 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/Install/instsup.h

@@ -1,6 +1,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif	
+void create_wps_objects(void);
 unsigned long color_depth(void);
 void sysreboot(void);
 int mesg(char *format, ...);