SmartisanOS_Kernel_Source/scripts/gcc-version.sh at master · githubwan521/SmartisanOS_Kernel_Source · GitHub

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#!/bin/sh

# gcc-version [-p] gcc-command

# Prints the gcc version of `gcc-command' in a canonical 4-digit form

# such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc.

# With the -p option, prints the patchlevel as well, for example `029503' for

# gcc-2.95.3, `030301' for gcc-3.3.1, etc.

if [ "$1" = "-p" ] ; then

with_patchlevel=1;

shift;

compiler="$*"

if [ ${#compiler} -eq 0 ]; then

echo "Error: No compiler specified."

printf "Usage:\n\t$0 <gcc-command>\n"

exit 1

MAJOR=$(echo __GNUC__ | $compiler -E -xc - | tail -n 1)

MINOR=$(echo __GNUC_MINOR__ | $compiler -E -xc - | tail -n 1)

if [ "x$with_patchlevel" != "x" ] ; then

PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -xc - | tail -n 1)

printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL

else

printf "%02d%02d\\n" $MAJOR $MINOR