unmaintained/chntpw: clean-up and switch libressl

unmaintained/chntpw/APKBUILD

-# Contributor:
+# Contributor: Fabian Affolter <fabian@affolter-engineering.ch>
 # Maintainer: Fabian Affolter <fabian@affolter-engineering.ch>
 pkgname=chntpw
 pkgver=140201
-pkgrel=0
+pkgrel=1
 pkgdesc="Change passwords in Windows SAM files"
 url="http://pogostick.net/~pnh/ntpasswd/"
 arch="all"
 license="GPL2"
-depends=""
-depends_dev=""
-makedepends="$depends_dev openssl-dev"
-install=""
-subpackages=""
+makedepends="libressl-dev"
 source="http://pogostick.net/~pnh/ntpasswd/$pkgname-source-$pkgver.zip
-	stdint.patch
-	"
-
-_builddir="$srcdir"/$pkgname-$pkgver
-prepare() {
-	local i
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
-		esac
-	done
-}
+	stdint.patch"
+builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 	make CC="${CC:-gcc}" CFLAGS="$CFLAGS -DUSEOPENSSL" LIBS="-lcrypto" \
 		chntpw cpnt reged || return 1
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	install -d "$pkgdir"/usr/bin
 	install chntpw cpnt reged "$pkgdir"/usr/bin/
 }