Make %{lua_noarchdir} work even without lua-devel installed.

macros.lua

@@ -8,7 +8,15 @@
 %lua_archdir %(pkgconf --variable=INSTALL_CMOD lua)
 
 # pure Lua modules should go here
+local f = io.popen("pkgconf --variable=INSTALL_LMOD lua")
+local output = f:read("*a")
+f:close()
+
+if output:len() == 0 then
+%lua_noarchdir %{_datadir}/lua/%{lua_version}/luacheck/
+else
 %lua_noarchdir %(pkgconf --variable=INSTALL_LMOD lua)
+end
 
 # lua includes folder
 %lua_incdir %(pkgconf --variable=includedir lua)