$NetBSD: patch-src_CMakeLists.txt,v 1.1 2021/04/04 11:10:37 nia Exp $

Use exact-lua-version-finding cmake script.

--- src/CMakeLists.txt.orig	2019-09-13 15:35:59.000000000 +0000
+++ src/CMakeLists.txt
@@ -7,7 +7,7 @@ FIND_PACKAGE(OpenGL REQUIRED)
 FIND_PACKAGE(GLEW REQUIRED)
 FIND_PACKAGE(OpenAL REQUIRED)
 FIND_PACKAGE(VorbisFile REQUIRED)
-FIND_PACKAGE(Lua 5.1 REQUIRED)
+FIND_PACKAGE(Lua51 REQUIRED)
 FIND_PACKAGE(PNG REQUIRED)
 FIND_PACKAGE(Gettext REQUIRED)
 FIND_PACKAGE(Boost 1.46.1 REQUIRED)