gcc-version.sh 819 B

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