ugly: undefine memmove to avoid build failure with gcc fortify

extensions enabled

code/tools/lcc/cpp/unix.c

@@ -92,6 +92,10 @@ setup(int argc, char **argv)
 
 /* memmove is defined here because some vendors don't provide it at
    all and others do a terrible job (like calling malloc) */
+// -- ouch, that hurts -- ln
+#ifdef memmove
+#undef memmove
+#endif
 void *
 memmove(void *dp, const void *sp, size_t n)
 {