switch source tree from k&r to c99

include/func_tab.h

@@ -16,7 +16,7 @@
 struct ext_func_tab {
     uchar key;
     const char *ef_txt, *ef_desc;
-    int NDECL((*ef_funct));
+    int (*ef_funct)(void);
     int flags;
     const char *f_text;
 };