Merge pull request #4394 from mikdusan/fix-cmake-regression

stage1: fix cmake regression

Author: mikdusan

CMakeLists.txt

@@ -2,10 +2,10 @@ cmake_minimum_required(VERSION 2.8.5)
 
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
-        "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
+        "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)
 endif()
 
-set(_list "Debug;Release;RelWithDebInfo;MinSizeRel")
+set(_list "None;Debug;Release;RelWithDebInfo;MinSizeRel")
 list(FIND _list ${CMAKE_BUILD_TYPE} _index)
 if(${_index} EQUAL -1)
     string(REPLACE ";" ", " _list_pretty "${_list}")