Make ENABLE_NULLKILLER_AI top level option

AI/CMakeLists.txt

@@ -2,7 +2,6 @@
 #        FuzzyLite support            #
 #######################################
 
-option(ENABLE_NULLKILLER_AI "Enable compilation of Nullkiller AI library" ON)
 if(NOT WIN32 AND NOT APPLE)
 	option(FORCE_BUNDLED_FL "Force to use FuzzyLite included into VCMI's source tree" ON)
 else()

CMakeLists.txt

@@ -52,6 +52,7 @@ option(ENABLE_ERM "Enable compilation of ERM scripting module" OFF)
 option(ENABLE_LUA "Enable compilation of LUA scripting module" OFF)
 option(ENABLE_LAUNCHER "Enable compilation of launcher" ON)
 option(ENABLE_EDITOR "Enable compilation of map editor" ON)
+option(ENABLE_NULLKILLER_AI "Enable compilation of Nullkiller AI library" ON)
 if(APPLE_IOS)
 	set(BUNDLE_IDENTIFIER_PREFIX "" CACHE STRING "Bundle identifier prefix")
 	set(APP_DISPLAY_NAME "VCMI" CACHE STRING "App name on the home screen")

client/CMakeLists.txt

@@ -178,7 +178,7 @@ else()
 endif(ENABLE_DEBUG_CONSOLE)
 
 add_dependencies(vcmiclient vcmiserver BattleAI StupidAI VCAI)
-if(TBB_FOUND)
+if(ENABLE_NULLKILLER_AI)
 	add_dependencies(vcmiclient Nullkiller)
 endif()
 if(APPLE_IOS)