Tests/Visibility/shared.cpp - third_party/github.com/Kitware/CMake - Git at Google

 extern "C" int bar(void);
 void baz();

 int shared()
 {
   baz();
   return bar();
 }
	extern "C" int bar(void);
	void baz();

	int shared()
	{
	baz();
	return bar();
	}