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diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h
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+++ b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h
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+/* sigstack, sigaltstack definitions.
+ Copyright (C) 1998-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _BITS_SIGSTACK_H
+#define _BITS_SIGSTACK_H 1
+
+#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
+# error "Never include this file directly. Use <signal.h> instead"
+#endif
+
+/* Minimum stack size for a signal handler.
+
+ Yes, this should be 131072 but the constant got defined incorrectly
+ in the kernel and we have to live with it. Users should in any case
+ use SIGSTKSZ as the size user-supplied buffers should have. */
+#define MINSIGSTKSZ 131027
+
+/* System default stack size. */
+#define SIGSTKSZ 262144
+
+#endif /* bits/sigstack.h */