Add CMake option to re-enable warnings in game build

CMakeLists.txt

@@ -11,6 +11,8 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_subdirectory(extern/aurora EXCLUDE_FROM_ALL)
 
+option(DUSK_BUILD_WARNINGS "If off, compiler warnings will be suppressed")
+
 if (CMAKE_SYSTEM_NAME STREQUAL Linux)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unknown-pragmas -Wno-unused-variable -Wno-unused-parameter")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x -stdlib=libc++ -Wno-register -fPIC")
@@ -28,7 +30,9 @@ elseif (MSVC)
     add_compile_options(/bigobj)
     add_compile_options(/Zc:strictStrings-)
     add_compile_options(/MP)
-    add_compile_options(/W0)
+    if (NOT DUSK_BUILD_WARNINGS)
+        add_compile_options(/W0)
+    endif ()
     add_compile_options(/utf-8)
 endif ()
 if (NOT MSVC)