Don't include <unistd.h> unless HAVE_UNISTD_H. Include <process.h> on

Don't include <unistd.h> unless HAVE_UNISTD_H. Include <process.h> on

2004-01-23  Tor Lillqvist  <tml@iki.fi>

	* glib/grand.c: Don't include <unistd.h> unless
	HAVE_UNISTD_H. Include <process.h> on G_OS_WIN32.
	(g_rand_new): Use getppid() only on G_OS_UNIX.