diff -up lsyncd-42413cabbedca429d55a5378f6e830f191f3cc86/CMakeLists.txt.LUA_COMPAT_5_3 lsyncd-42413cabbedca429d55a5378f6e830f191f3cc86/CMakeLists.txt
--- lsyncd-42413cabbedca429d55a5378f6e830f191f3cc86/CMakeLists.txt.LUA_COMPAT_5_3	2020-12-08 19:33:54.268016329 -0500
+++ lsyncd-42413cabbedca429d55a5378f6e830f191f3cc86/CMakeLists.txt	2020-12-08 20:39:49.941802873 -0500
@@ -4,6 +4,8 @@ cmake_minimum_required( VERSION 2.8 )
 set( LSYNCD_VERSION 2.2.3 )
 set( CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/" )
 
+# Enable Lua 5.3 compatibility macros
+add_definitions(-DLUA_COMPAT_5_3)
 
 # finding Lua
 find_package( Lua REQUIRED )