Tests/RunCMake/target_sources/lib2.c - third_party/github.com/Kitware/CMake - Git at Google

 #include <dir3.h>

 #ifdef _WIN32
 __declspec(dllexport)
 #endif
   void lib2(void)
 {
 }
	#include <dir3.h>

	#ifdef _WIN32
	__declspec(dllexport)
	#endif
	void lib2(void)
	{
	}