name=libpng
version=1.6.48
release=1
source="https://downloads.sourceforge.net/$name/$name-$version.tar.xz
	https://downloads.sourceforge.net/sourceforge/libpng-apng/libpng-$version-apng.patch.gz"

prebuild() {
	gzip -cd ../libpng-$version-apng.patch.gz | patch -p1
}