Tests/RunCMake/AutoExportDll/foo.c - third_party/cmake - Git at Google

 #ifdef _MSC_VER
 #  include "windows.h"
 #else
 #  define WINAPI
 #endif

 int WINAPI foo()
 {
   return 10;
 }

 int bar()
 {
   return 5;
 }
	#ifdef _MSC_VER
	# include "windows.h"
	#else
	# define WINAPI
	#endif

	int WINAPI foo()
	{
	return 10;
	}

	int bar()
	{
	return 5;
	}