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-rw-r--r--signal.h32
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diff --git a/signal.h b/signal.h
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+/*
+ Copyright (C) 2006 Renaissance Technologies Corp.
+ main developer: HP Wei <hp@rentec.com>
+ Copyright (C) 2005 Renaissance Technologies Corp.
+ main developer: HP Wei <hp@rentec.com>
+
+ This program 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, or (at your option)
+ any later version.
+
+ This program 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 this program; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+/******* on linux: ioctl() is defined in sys/ioctl.h instead of unistd.h as on SunOS *****/
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+typedef void Sigfunc(int); /* for signal handlers */
+