message: Partial fix for MSVC build.
diff: @@ -77,6 +77,10 @@ struct WGLSwapChain {
  };
  Driver* PlatformWGL::createDriver(void* const sharedGLContext) noexcept {
  + int result = 0;
  + PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs = nullptr;
  + int pixelFormat = 0;
  +
  mPfd = {
  sizeof(PIXELFORMATDESCRIPTOR),
  1,
  @@ -112,7 +116,7 @@ Driver* PlatformWGL::createDriver(void* const sharedGLContext) noexcept {
  goto error;
  }
  - int pixelFormat = ChoosePixelFormat(whdc, &mPfd);
  + pixelFormat = ChoosePixelFormat(whdc, &mPfd);
  SetPixelFormat(whdc, pixelFormat, &mPfd);
  // We need a tmp context to retrieve and call wglCreateContextAttribsARB.
  @@ -123,7 +127,7 @@ Driver* PlatformWGL::createDriver(void* const sharedGLContext) noexcept {
  goto error;
  }
  - PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs =
  + wglCreateContextAttribs =
  (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress("wglCreateContextAttribsARB");
  mContext = wglCreateContextAttribs(whdc, (HGLRC) sharedGLContext, attribs);
  if (!mContext) {
  @@ -141,7 +145,7 @@ Driver* PlatformWGL::createDriver(void* const sharedGLContext) noexcept {
  goto error;
  }
  - int result = bluegl::bind();
  + result = bluegl::bind();
  ASSERT_POSTCONDITION(!result, "Unable to load OpenGL entry points.");
  return OpenGLDriverFactory::create(this, sharedGLContext);
  