1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# gcc-version [-p] gcc-command 5# 6# Prints the gcc version of `gcc-command' in a canonical 4-digit form 7# such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc. 8# 9# With the -p option, prints the patchlevel as well, for example `029503' for 10# gcc-2.95.3, `030301' for gcc-3.3.1, etc. 11# 12 13if [ "$1" = "-p" ] ; then 14 with_patchlevel=1; 15 shift; 16fi 17 18compiler="$*" 19 20if [ ${#compiler} -eq 0 ]; then 21 echo "Error: No compiler specified." 22 printf "Usage:\n\t$0 <gcc-command>\n" 23 exit 1 24fi 25 26MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1) 27MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1) 28if [ "x$with_patchlevel" != "x" ] ; then 29 PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1) 30 printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL 31else 32 printf "%02d%02d\\n" $MAJOR $MINOR 33fi 34