community/libreswan: add strongswan as conflicting package

community/libreswan/APKBUILD

@@ -2,12 +2,12 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=libreswan
 pkgver=4.7
-pkgrel=1
+pkgrel=2
 pkgdesc="IPsec implementation for Linux"
 url="https://libreswan.org/"
 arch="all"
 license="GPL-2.0-or-later"
-depends="nss-tools iproute2"
+depends="nss-tools iproute2 !strongswan"
 provides="openswan=$pkgver-r$pkgrel"
 options="!check" # no testsuite
 makedepends="