main/ncurses: add dbg subpkg

main/ncurses/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=ncurses
 pkgver=6.0
-pkgrel=0
+pkgrel=1
 pkgdesc="Console display library"
 url="http://www.gnu.org/software/ncurses/"
 arch="all"
@@ -10,7 +10,7 @@ depends=
 source="http://ftp.gnu.org/pub/gnu/ncurses/ncurses-${pkgver}.tar.gz
 	"
 subpackages="$pkgname-dev $pkgname-doc $pkgname-terminfo-base:base
-	$pkgname-terminfo $pkgname-widec-libs:widec $pkgname-libs"
+	$pkgname-terminfo $pkgname-widec-libs:widec $pkgname-libs $pkgname-dbg"
 
 _builddir="$srcdir"/ncurses-$pkgver
 prepare() {