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# Contributor: Carlo Landmeter <clandmeter@gmail.com>
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=libpng
pkgver=1.6.23
_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 \
		--sysconfdir=/etc \
		--mandir=/usr/share/man \
		--localstatedir=/var \
		|| return 1
	make || return 1
}

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

md5sums="a49e4cc48d968c79def53d082809c9f2  libpng-1.6.23.tar.gz
bf44929a1c272f585a11baeca05af500  libpng-1.6.23-apng.patch.gz"
sha256sums="74a9db9ddd66caa64be82bfcb3cbec4fc4394ceb1053cb7e94b2a0aa9b78eb88  libpng-1.6.23.tar.gz
08906e0639a953f6be2d47857661cbdf04dcab93d3bf9f8cb0f7675567b07ad3  libpng-1.6.23-apng.patch.gz"
sha512sums="f5cf137186fc0a10deb3ce54b1961cb9a358cec380cd3f8c21d2726e68348574c49a5a6808ecd79736737e970fa41ae83626811cb72b059bbf6054fabf6639f8  libpng-1.6.23.tar.gz
105e7f70d1292f4a059e62fda7c4ffbfcd4eacd3c11cd1fbdd09bdcf2b1469a54ee864c4f5f22afe9e17ddfd1d10196661a69bb4eb469173a3bfc789181923ce  libpng-1.6.23-apng.patch.gz"