Tests/PerConfig/perconfig.c - third_party/github.com/Kitware/CMake - Git at Google

 #include "pcShared.h"
 extern const char* pcStatic(void);
 int main()
 {
   pcStatic();
   pcShared();
   return 0;
 }
	#include "pcShared.h"
	extern const char* pcStatic(void);
	int main()
	{
	pcStatic();
	pcShared();
	return 0;
	}