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Sami Tolvanenae0c5532017-11-30 15:38:26 -08001#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3#
4# clang-version [-p] clang-command
5#
6# Prints the compiler version of `clang-command' in a canonical 4-digit form
7# such as `0500' for clang-5.0 etc.
8#
9# With the -p option, prints the patchlevel as well, for example `050001' for
10# clang-5.0.1 etc.
11#
12
Sami Tolvanenae0c5532017-11-30 15:38:26 -080013compiler="$*"
14
Michael Forneyb5f8cb92018-08-15 17:13:50 -070015if ! ( $compiler --version | grep -q clang) ; then
Masahiro Yamada469cb732018-05-28 18:22:02 +090016 echo 0
Sami Tolvanenae0c5532017-11-30 15:38:26 -080017 exit 1
18fi
19
20MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
21MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
Masahiro Yamada469cb732018-05-28 18:22:02 +090022PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
23printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL