#if defined _WIN32 || defined __CYGWIN__

#include <windows.h>

int main(void)
{
	static const char MSG[] = "Hello, world!\r\n\n";
	unsigned n;
	WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), MSG, sizeof(MSG) - 1, &n, 0);
	ExitProcess(0);
}

#else

#include <sys/syscall.h>
#ifndef __sun
	long syscall(long, ...);
#endif

int main(void)
{
	static const char MSG[] = "Hello, world!\n\n";
	syscall(SYS_write, 1, MSG, sizeof(MSG) - 1);
	return (int)syscall(SYS_exit, 0);
}

#endif	/* defined _WIN32 || defined __CYGWIN__ */