cmake: fix ENABLE_LUAJIT_RANDOM_RA option

The CMake option ENABLE_LUAJIT_RANDOM_RA has been broken.
The patch fixes that and enable this option in testing.

Author: ligurio

CMakeLists.txt

@@ -33,10 +33,6 @@ set(CMAKE_INCLUDE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_INCLUDE_PATH}
 include(SetBuildParallelLevel)
 include(SetHardwareArch)
 
-if (ENABLE_LUAJIT_RANDOM_RA AND NOT IS_LUAJIT)
-  message(FATAL_ERROR "Option ENABLE_LUAJIT_RANDOM_RA is LuaJIT-specific.")
-endif()
-
 if (USE_LUA AND NOT LUA_VERSION)
   set(LUA_VERSION "master")
 endif()
@@ -71,6 +67,10 @@ endif ()
 
 message(STATUS "Found ${LUA_VERSION_STRING}")
 
+if (ENABLE_LUAJIT_RANDOM_RA AND NOT IS_LUAJIT)
+  message(FATAL_ERROR "Option ENABLE_LUAJIT_RANDOM_RA is LuaJIT-specific.")
+endif()
+
 if(NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR
    NOT CMAKE_C_COMPILER_ID STREQUAL "Clang")
   message(FATAL_ERROR