scripts/gcc-version.sh

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