steps=()
-src=_.png
-dst=__.png
+src=${out}.src.png
+dst=${out}.dst.png
copy=("${src}" "${dst}")
steps+=($(stat -f "%z" "${src}"))
}
-pngcrush=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush
+pngcrush=$(xcode-select --print-path)/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush
if grep CgBI "${png}" &>/dev/null; then
if [[ ${png} != ${out} ]]; then