New arg --enable-extra, checks for ./configure options, oher stuff :-)


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@316 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
diff --git a/proto.h b/proto.h
index 2b82638..921505d 100644
--- a/proto.h
+++ b/proto.h
@@ -131,6 +131,9 @@
 void blank_edit(void);
 void search_init_globals(void);
 void replace_abort(void);
+#ifdef NANO_EXTRA
+void do_credits(void);
+#endif
 
 int do_writeout_void(void), do_exit(void), do_gotoline_void(void);
 int do_insertfile(void), do_search(void), page_up(void), page_down(void);