community/libcoap: modernize APKBUILD

community/libcoap/APKBUILD

@@ -7,24 +7,17 @@ pkgdesc="A CoAP (RFC 7252) implementation"
 url="https://github.com/obgm/libcoap"
 arch="all"
 license="BSD-2-Clause"
-depends=""
-depends_dev=""
 makedepends="automake autoconf libtool asciidoc openssl-dev"
 checkdepends="cunit-dev"
-install=""
 subpackages="$pkgname-dev $pkgname-doc"
-source="$pkgname-$pkgver.tar.gz::https://github.com/obgm/$pkgname/archive/v$pkgver.tar.gz"
-builddir="$srcdir/$pkgname-$pkgver"
+source="$pkgname-$pkgver.tar.gz::https://github.com/obgm/libcoap/archive/v$pkgver.tar.gz"
 
 prepare() {
 	default_prepare
-
-	cd "$builddir"
 	./autogen.sh
 }
 
 build() {
-	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -39,11 +32,10 @@ build() {
 }
 
 check() {
-	"$builddir"/tests/testdriver
+	./tests/testdriver
 }
 
 package() {
-	cd "$builddir"
 	make DESTDIR="$pkgdir" install
 
 	mkdir -p "$pkgdir"/usr/share/doc/$pkgname