# Contributor: Carlo Landmeter <clandmeter@gmail.com>
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=libpng
pkgver=1.6.21
_apngver=$pkgver
pkgrel=0
pkgdesc="Portable Network Graphics library"
url="http://www.libpng.org/"
arch="all"
license="GPL"
depends=""
depends_dev="zlib-dev"
makedepends="$depends_dev gawk"
subpackages="$pkgname-doc $pkgname-dev"
source="http://downloads.sourceforge.net/$pkgname/$pkgname-$pkgver.tar.gz
	http://downloads.sourceforge.net/sourceforge/libpng-apng/libpng-$_apngver-apng.patch.gz
	"

_builddir="$srcdir/$pkgname-$pkgver"
prepare() {
	cd "$_builddir"
	gunzip -c "$srcdir"/libpng-$pkgver-apng.patch.gz | patch -p1 || return 1
}

build() {
	cd "$_builddir"
	./configure \
		--build=$CBUILD \
		--host=$CHOST \
		--prefix=/usr \
		|| return 1
	make
}

package() {
	cd "$srcdir/$pkgname-$pkgver"
	make DESTDIR="$pkgdir" install
	install -Dm644 LICENSE "${pkgdir}"/usr/share/licenses/${pkgname}/LICENSE || return 1
}

md5sums="aca36ec8e0a3b406a5912243bc243717  libpng-1.6.21.tar.gz
360346394543ec0a880f61830541608f  libpng-1.6.21-apng.patch.gz"
sha256sums="b36a3c124622c8e1647f360424371394284f4c6c4b384593e478666c59ff42d3  libpng-1.6.21.tar.gz
6da70e2526fe91c3379592546d2f14c0dfef8f04e2b338dddd5dc9ef45618c73  libpng-1.6.21-apng.patch.gz"
sha512sums="033bbac08e5415500289dc41a854f1a2b1b61923b62bcdccb6f5d9c0f1efb95924712f2b5ec370bfbea30ec3deab5883a308ee78709a81095c748359a63373ae  libpng-1.6.21.tar.gz
144bf07770d5584ea78648b65468a9acd40909b34c501ec4d91fc53ddf8ca85c99e2fcb1b245fce54d045b60ad2e1da575c27ad6ca566358643b4573176f05b2  libpng-1.6.21-apng.patch.gz"