XCode Project Build Number Auto Increment Script

gistfile1.m

# Auto Increment Version Script
# This script will increment the build number by 1
# when running a configuration other than Debug and Release
# while not on intel architecture
arch=${ARCHS:0:4}
conf=${CONFIGURATION}
if [ "$conf" != "Debug" ] && [ "$conf" != "Release" ] && [ "$arch" != "i386" ]
    then
        buildPlist=${INFOPLIST_FILE}
        buildVersion=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" $buildPlist)
        buildVersion=$(($buildVersion + 1))
        echo "Incrementing build version"
        echo "    New build number is: $buildVersion"
        /usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildVersion" $buildPlist
fi

Make sure to run this script before the "Copy Bundle Resources" build phase.