gcc-version.sh 857 B

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  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. if [ "$1" = "-p" ] ; then
  13. with_patchlevel=1;
  14. shift;
  15. fi
  16. compiler="$*"
  17. if [ ${#compiler} -eq 0 ]; then
  18. echo "Error: No compiler specified."
  19. printf "Usage:\n\t$0 <gcc-command>\n"
  20. exit 1
  21. fi
  22. MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
  23. MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
  24. if [ "x$with_patchlevel" != "x" ] ; then
  25. PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
  26. printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
  27. else
  28. printf "%02d%02d\\n" $MAJOR $MINOR
  29. fi