main/libburn: upgrade to 1.5.6

main/libburn/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=libburn
-pkgver=1.5.4
+pkgver=1.5.6
 _ver=${pkgver%_p*}
 if [ "$_ver" != "$pkgver" ]; then
 	_pver=".pl${pkgver##*_p}"
 fi
-pkgrel=4
+pkgrel=0
 pkgdesc="Library for reading, mastering and writing optical discs"
-url="https://libburnia-project.org/"
+url="https://dev.lovelyhq.com/libburnia/web/wiki"
 arch="all"
 license="GPL-2.0-or-later"
 makedepends="linux-headers"
 subpackages="$pkgname-dev $pkgname-doc"
 source="https://files.libburnia-project.org/releases/libburn-${_ver}$_pver.tar.gz"
 
-prepare() {
-	default_prepare
-	update_config_sub
-}
-
 build() {
+	CFLAGS="$CFLAGS -flto=auto" \
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -36,5 +32,5 @@ package() {
 }
 
 sha512sums="
-dd7b14093e62e2c02011955c24e01d70ed78969b14faf7e5a63c0da97a80c438b628922532eb135af7dea8ee7c7b83554b3354160306dad852ce5bf6eb1d5ac9  libburn-1.5.4.tar.gz
+549cb25310aac5ce445639374d84f0c09fb1fdd70be97479588775e5afcc12dd0655c5bf51bd3f1bf8c06a66b318fd1e709dcfd72845e795ffaf353ea621accd  libburn-1.5.6.tar.gz
 "