testing/lua-event: select lua version with install_if

testing/lua-event/APKBUILD

@@ -5,7 +5,7 @@ _luaversions="5.1 5.2"
 pkgname=lua-event
 _n=${pkgname#lua-}
 pkgver=0.4.3
-pkgrel=1
+pkgrel=2
 pkgdesc="Lua binding for libevent"
 url="https://github.com/harningt/luaevent"
 arch="all"
@@ -19,7 +19,6 @@ source="${url}/archive/v${pkgver}.tar.gz"
 for _i in $_luaversions; do
 	makedepends="$makedepends lua${_i}-dev"
 	subpackages="$subpackages lua${_i}-${_n}:_split${_i/./}"
-	depends="$depends lua${_i}-${_n}"
 done
 
 
@@ -64,6 +63,7 @@ _split() {
 	local d= _ver=$1
 	pkgdesc="$pkgdesc - for Lua $_ver"
 	depends=
+	install_if="lua$_ver $pkgname=$pkgver-r$pkgrel"
 	for d in usr/lib/lua usr/share/lua; do
 		if [ -d "$pkgdir"/$d/$_ver ]; then
 			mkdir -p "$subpkgdir"/$d