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

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