testing/nanomsg: modernize

testing/nanomsg/APKBUILD

@@ -7,16 +7,13 @@ pkgdesc="Socket library that provides several common communication patterns"
 url="http://nanomsg.org"
 arch="all !armhf !armv7"  # armhf: segfaults in 2 tests
 license="MIT"
-depends_dev="asciidoctor xmlto"
-makedepends="$depends_dev cmake"
+makedepends="asciidoctor xmlto cmake"
 options="libtool"
 subpackages="$pkgname-dev $pkgname-doc"
 source="$pkgname-$pkgver.tar.gz::https://github.com/nanomsg/nanomsg/archive/$pkgver.tar.gz"
 
-builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
-	cd "$builddir"
 	cmake \
 		-DCMAKE_INSTALL_PREFIX=/usr \
 		-DCMAKE_INSTALL_LIBDIR=lib .
@@ -24,12 +21,10 @@ build() {
 }
 
 check() {
-	cd "$builddir"
 	make test
 }
 
 package() {
-	cd "$builddir"
 	make DESTDIR="$pkgdir" install
 }