#!/bin/bash case "$0:$1" in *'as:--version' ) echo 'GNU assembler 3.1' ;; *'ld:--version' ) echo 'GNU ld version 3.1' ;; *'gcc:-v' ) echo 'gcc version 5.0.0' ;; *) exec $(dirname $0)/real/$(basename $0) "$@" ;; esac