Updated CMakeLists, working on Windows builds

CMakeLists.txt

@@ -25,7 +25,7 @@ if (UNIX AND APPLE)
     set(LIBS "${LIBS}" "-framework OpenGL")
 elseif (WIN32)
     message(STATUS "Windows build")
-    set(CMAKE_CXX_FLAGS "/W2")
+    set(CMAKE_SHARED_LINKER_FLAGS "")
 elseif (UNIX AND NOT APPLE)
     message(STATUS "Linux build")
     set(LIBS "${LIBS}" "-lpng")
@@ -34,11 +34,13 @@ elseif (UNIX AND NOT APPLE)
     set(LIBS "${LIBS}" "-lXtst")
 endif()
 
-set(CMAKE_CXX_FLAGS "-Wall -Wparentheses -Winline -Wbad-function-cast -Wdisabled-optimization")
-set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 if (NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
-    message(STATUS "No MSVC compiler in use, adding compile flags -Wextra")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
+    message(STATUS "No MSVC compiler in use")
+    set(CMAKE_CXX_FLAGS "-Wall -Wparentheses -Winline -Wbad-function-cast -Wdisabled-optimization -Wextra")
+    set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+else()
+    message(STATUS "MSVC compiler in use")
+    set(CMAKE_CXX_FLAGS "/Wall /W2 /O2")
 endif()
 
 add_compile_definitions(NAPI_CPP_EXCEPTIONS)