Tests/InterfaceLinkLibrariesDirect/direct_from_A_poison.c - third_party/github.com/Kitware/CMake - Git at Google

 extern void poison_not_direct_from_A(void);
 void not_direct_from_A(void)
 {
   poison_not_direct_from_A();
 }
	extern void poison_not_direct_from_A(void);
	void not_direct_from_A(void)
	{
	poison_not_direct_from_A();
	}