"THIS APPLIES ESPECIALLY ON macOS OR Linux/aarch64!")
message(WARNING ${explanation_msg})
endif()
-else()
+elseif(NOT MSVC)
set(CMAKE_REQUIRED_LIBRARIES "")
unset(HAVE_ATCCALL CACHE)
# Note: we need to check the function without having the library
# available for linking, so check_symbol_exists won't work.
+ # Incidentally this doesn't seem to work on MSVC...
check_c_source_compiles("#include <lua.h>\nint main(){return sizeof(lua_atccall);}" HAVE_ATCCALL)
if(NOT HAVE_ATCCALL)
string(CONCAT explanation_msg