scripts/gcc-version.sh

   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
   9 compiler="$*"
  10
  11 if [ ${#compiler} -eq 0 ]; then
  12         echo "Error: No compiler specified." >&2
  13         printf "Usage:\n\t$0 <gcc-command>\n" >&2
  14         exit 1
  15 fi
  16
  17 MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
  18 MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
  19 PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
  20 printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL