see https://github.com/hrsh7th/nvim-cmp/issues/1017 for a similar issue

--- cmake/lua.cmake.orig	2012-11-05 08:39:07
+++ cmake/lua.cmake	2023-03-16 03:40:38
@@ -223,7 +223,8 @@
 preload_modules(modules)
 arg[0] = '${TESTFILEABS}'
 table.remove(arg, 1)
-return assert(loadfile '${TESTFILEABS}')(unpack(arg))
+table.unpack = table.unpack or unpack
+return assert(loadfile '${TESTFILEABS}')(table.unpack(arg))
 "    )
     if ( _ARG_WORKING_DIRECTORY )
       get_filename_component (