Added cygwin support.

Patch by Cygwin Ports maintainer <yselkowitz@users.sourceforge.net>.
See #578890.

sysdeps/cygwin/glibtop_machine.h

@@ -0,0 +1,44 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __GLIBTOP_MACHINE_H__
+#define __GLIBTOP_MACHINE_H__
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+
+G_BEGIN_DECLS
+
+typedef struct _glibtop_machine		glibtop_machine;
+
+struct _glibtop_machine
+{
+	pid_t	last_pid;
+	int	no_update;
+	int	fd_stat, fd_meminfo, fd_loadavg;
+	char	proc_stat [BUFSIZ], proc_statm [BUFSIZ];
+	char	proc_status [BUFSIZ];
+};
+
+G_END_DECLS
+
+#endif