check for OBJC_IMAGE_SUPPORTS_GC macOS Sierra compatibility

checkGC.sh

#!/bin/bash

checkFile(){
	FILE=$1
	OTOOL=`which otool`
	TAIL=`which tail`
	IFS='/' read -ra ADDR <<< "$FILE"
	unset APP
	for i in "${ADDR[@]}"; do
		if [[ ! "${i-}" = $'\n' ]]; then
			if [[ ! $APP ]] && [[ "$i" == *.app ]]; then
				APP="${i}";	
			fi
		fi
	done
	if [ "$APP" != "$LASTAPP" ]; then
		LASTAPP=$APP
		PROG=${APP%".app"}
		PATH=${FILE%"/Contents/Info.plist"}
		if [[ -f ${PATH}/Contents/MacOS/${PROG} ]]; then
			CMD=`${OTOOL} -oV "${PATH}/Contents/MacOS/${PROG}" | ${TAIL} -3`
			if [[ $CMD == *"OBJC_IMAGE_SUPPORTS_GC"* ]]; then
				echo "${PATH}: false";
				echo "$CMD";
			#else 
			#	echo "${PATH}: true";
			fi
			
		fi	
	fi
}

export -f checkFile


LASTAPP="null"

find / -path "*.app/Contents/Info.plist" -exec bash -c 'checkFile "$0"' {} \;

Awesome! Thank you!