lockdep: Simplify debug atomic ops
[pandora-kernel.git] / 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 [ "$1" = "-p" ] ; then
13         with_patchlevel=1;
14         shift;
15 fi
16
17 compiler="$*"
18
19 if [ ${#compiler} -eq 0 ]; then
20         echo "Error: No compiler specified."
21         printf "Usage:\n\t$0 <gcc-command>\n"
22         exit 1
23 fi
24
25 MAJOR=$(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