main/libice: modernize

main/libice/APKBUILD

@@ -10,12 +10,11 @@ makedepends="xorgproto xtrans util-macros xmlto check-dev
 	autoconf automake libtool"
 subpackages="$pkgname-static $pkgname-dev $pkgname-doc"
 source="https://www.x.org/releases/individual/lib/libICE-$pkgver.tar.bz2"
-
 builddir="$srcdir/libICE-$pkgver"
 
 # secfixes:
 #   1.0.10-r0:
-#   - CVE-2017-2626
+#     - CVE-2017-2626
 
 prepare() {
 	default_prepare
@@ -23,7 +22,6 @@ prepare() {
 }
 
 build() {
-	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -37,12 +35,10 @@ build() {
 }
 
 check() {
-	cd "$builddir"
 	make check
 }
 
 package() {
-	cd "$builddir"
 	make DESTDIR="$pkgdir" install
 }
 sha512sums="2f1ef2c32c833c71894a08fa7e7ed53f301f6c7bd22485d71c12884d8e8b36b99f362ec886349dcc84d08edc81c8b2cea035320831d64974edeba021b433c468  libICE-1.0.10.tar.bz2"