1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3#
4# gcc-version gcc-command
5#
6# Print the gcc version of `gcc-command' in a 5 or 6-digit form
7# such as `29503' for gcc-2.95.3, `30301' for gcc-3.3.1, etc.
8
9compiler="$*"
10
11if [ ${#compiler} -eq 0 ]; then
12	echo "Error: No compiler specified." >&2
13	printf "Usage:\n\t$0 <gcc-command>\n" >&2
14	exit 1
15fi
16
17if ! ( $compiler --version | head -n 1 | grep -q gcc ); then
18	echo 0
19	exit 1
20fi
21
22MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
23MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
24PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
25printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
26