Tests/Dependency/Two/TwoSrc.c - third_party/github.com/Kitware/CMake - Git at Google

 #include <two-test.h>

 void TwoFunction(void)
 {
   static int count = 0;
   if (count == 0) {
     ++count;
     ThreeFunction();
   }
 }
	#include <two-test.h>

	void TwoFunction(void)
	{
	static int count = 0;
	if (count == 0) {
	++count;
	ThreeFunction();
	}
	}