osxcross/tools/trap_exit.sh

#!/usr/bin/env bash

function check_for_bug_1242300()
{
    if [ -e /etc/issue ]; then
        if [ "`grep -i ubuntu.13.10 /etc/issue`" ]; then
            echo "Ubuntu 13.10 detected. if there was a 'configure:' error"
            echo "please see https://bugs.launchpad.net/ubuntu/+source/llvm-defaults/+bug/1242300"
        fi
    fi
}

function _exit()
{
    EC=$?
    if [ $EC -ne 0 ]; then
        test -z "$SCRIPT" && SCRIPT=`basename $0`
        echo ""
        echo "exiting with abnormal exit code ($EC)"
        test -n "$OCDEBUG" || echo "run 'OCDEBUG=1 ./$SCRIPT' to enable debug messages"
        echo "removing stale locks..."
        remove_locks
        echo "if it is happening the first time, then just re-run the script"
        echo ""
        test $SCRIPT = "build.sh" && check_for_bug_1242300
    fi
}

trap _exit EXIT