scripts/clang-version.sh

   1 #!/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
  13 compiler="$*"
  14
  15 if ! ( $compiler --version | grep -q clang) ; then
  16         echo 0
  17         exit 1
  18 fi
  19
  20 MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
  21 MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
  22 PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
  23 printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL