main/lua-socket: fix include search path

set cflags to have correct include path for correct version of lua

main/lua-socket/APKBUILD

@@ -4,7 +4,7 @@ _luaversions="5.1 5.2 5.3"
 pkgname=lua-socket
 _name=luasocket
 pkgver=3.0_rc1_git20160306
-pkgrel=0
+pkgrel=1
 _ver=${pkgver%_git*}
 _ver=${_ver/_rc/-rc}
 pkgdesc="Networking library for Lua"
@@ -25,28 +25,27 @@ source="luasocket-$_ver.tar.gz::https://github.com/diegonehab/luasocket/archive/
 	"
 
 # default_prepare assumes $_builddir
-_builddir="$srcdir/$_name-$_ver"
+builddir="$srcdir/$_name-$_ver"
 
 prepare() {
 	default_prepare
 	for _i in $_luaversions; do
-		cp -r "$_builddir" "$srcdir"/build-$_i
-		# set lua version
-		sed -i -e "/^LUAV?=/s/=.*/=$_i/" \
-			"$srcdir"/build-$_i/src/makefile || return 1
+		cp -r "$builddir" "$srcdir"/build-$_i
 	done
 }
 
 build() {
 	for _i in $_luaversions; do
-		make -C "$srcdir"/build-$_i/src all-unix || return 1
+		make -C "$srcdir"/build-$_i/src  LUAV=$_i \
+			all-unix || return 1
 	done
 }
 
 package() {
 	for _i in $_luaversions; do
 		cd "$srcdir"/build-$_i
-		make prefix=/usr DESTDIR="$pkgdir" install-unix || return 1
+		make prefix=/usr DESTDIR="$pkgdir" LUAV=$_i \
+			install-unix || return 1
 	done
 }