community/gucharmap: upgrade to 12.0.1, modernize

Needs unzip, to prevent:
processing /usr/share/unicode/Unihan.zip./usr/bin/unzip: unrecognized option: c

community/gucharmap/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=gucharmap
-pkgver=3.18.2
+pkgver=12.0.1
 pkgrel=0
 pkgdesc="the GNOME Character Map, based on the Unicode Character Database"
-url="http://live.gnome.org/Gucharmap"
+url="https://wiki.gnome.org/Apps/Gucharmap"
 arch="all"
 license="GPL"
-depends=
+depends="unicode-character-database"
 makedepends="libxml2-utils gtk+3.0-dev itstool desktop-file-utils gobject-introspection-dev
-	appstream-glib intltool"
+	appstream-glib intltool unzip"
 install=
 subpackages="$pkgname-dev $pkgname-lang"
 source="https://download.gnome.org/sources/gucharmap/${pkgver%.*}/gucharmap-$pkgver.tar.xz"
 
-_builddir="$srcdir"/$pkgname-$pkgver
-
-prepare() {
-	cd "$_builddir"
-}
+builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -28,15 +24,13 @@ build() {
 		--sysconfdir=/etc \
 		--mandir=/usr/share/man \
 		--infodir=/usr/share/info \
-		|| return 1
-	make || return 1
+		--with-unicode-data=/usr/share/unicode
+	make
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	make DESTDIR="$pkgdir" install
 }
 
-md5sums="79670f9b8c9a4888f4ea439fd2e8c589  gucharmap-3.18.2.tar.xz"
-sha256sums="80141d3e892c3c4812c1a8fad8f89978559ef19e933843267e6e9a5524c09ec9  gucharmap-3.18.2.tar.xz"
-sha512sums="d12eefb56272192762086271aa65bfa8b9a8843ac68a6affa1af3d2c891227b0fdae1c274976ceb883ecce26b7d9a2b28c2712155650c0969d6da77b1ff482b5  gucharmap-3.18.2.tar.xz"
+sha512sums="989034350c73c3f1857167f434aa4a5c140ef7574cb799b874e421a8d0c2bf520dfcee85bc0cf8e52f439fb7d30e0db5172a25c107c80b38ce6da4e703a3ffc2  gucharmap-12.0.1.tar.xz"