main/pigz: modernize APKBUILD and add check

main/pigz/APKBUILD

@@ -2,37 +2,29 @@
 # Maintainer: William Pitcock <nenolod@dereferenced.org>
 pkgname=pigz
 pkgver=2.3.4
-pkgrel=1
+pkgrel=2
 pkgdesc="parallel implementation of gzip"
 url="http://zlib.net/pigz/"
 arch="all"
 license="zlib"
-depends=""
-depends_dev=""
 makedepends="zlib-dev"
-install=""
 subpackages="$pkgname-doc"
 source="http://zlib.net/pigz/pigz-$pkgver.tar.gz"
 
-_builddir="$srcdir"/pigz-$pkgver
-prepare() {
-	local i
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
-		esac
-	done
-}
+builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 	export CXXFLAGS="$CXXFLAGS -std=gnu++98"
-	make || return 1
+	make
 }
 
+check() {
+	cd "$builddir"
+	make tests
+}
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	mkdir -p "$pkgdir"/usr/bin
 	mkdir -p "$pkgdir"/usr/share/man/man1
 	for i in pigz unpigz; do
@@ -41,6 +33,4 @@ package() {
 	install -m644 pigz.1 "$pkgdir"/usr/share/man/man1
 }
 
-md5sums="08e6b2e682bbf65ccf12c8966d633fc6  pigz-2.3.4.tar.gz"
-sha256sums="6f031fa40bc15b1d80d502ff91f83ba14f4b079e886bfb83221374f7bf5c8f9a  pigz-2.3.4.tar.gz"
 sha512sums="c0d5da6c5b2da50841aaf3958d5694edca0356d4bef211175e9f2f17e0c815e80b2e62bb39c7761c8f83fdaa84ca7373e130cdb0fa2c96f91c397556cbf7ba2a  pigz-2.3.4.tar.gz"