create new package for librsync

this package was created because I wanted rdiff-backup, and it
requires librsync

testing/librsync/APKBUILD

+# Contributor: Jeremy Thomerson <jeremy@thomersonfamily.com>
+# Maintainer: Jeremy Thomerson <jeremy@thomersonfamily.com>
+pkgname=librsync
+pkgver=0.9.7
+pkgrel=0
+pkgdesc="librsync implements the rolling-checksum algorithm of rsync"
+url="http://sourceforge.net/projects/librsync/"
+license="LGPL 2.1"
+depends=""
+makedepends=""
+install=
+subpackages="$pkgname-dev"
+source="http://downloads.sourceforge.net/$pkgname/$pkgname-$pkgver.tar.gz"
+
+_builddir="$srcdir"/$pkgname-$pkgver
+
+build() {
+	cd "$_builddir"
+
+	./configure --prefix=/usr --mandir=/usr/share/man --enable-shared
+	make || return 1
+}
+
+package() {
+	cd "$_builddir"
+	make DESTDIR="$pkgdir" install || return 1
+}
+
+md5sums="24cdb6b78f45e0e83766903fd4f6bc84  librsync-0.9.7.tar.gz"