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+/* Signal handling function for threaded programs. Generic version.
+ Copyright (C) 2000 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _BITS_SIGTHREAD_H
+#define _BITS_SIGTHREAD_H 1
+
+#if !defined _SIGNAL_H && !defined _PTHREAD_H
+# error "Never include this file directly. Use <pthread.h> instead"
+#endif
+
+/* Modify the signal mask for the calling thread. The arguments have the
+ same meaning as for sigprocmask; in fact, this and sigprocmask might be
+ the same function. We declare this the same on all platforms, since it
+ doesn't use any thread-related types. */
+extern int pthread_sigmask (int __how, __const __sigset_t *__newmask,
+ __sigset_t *__oldmask) __THROW;
+
+
+#endif /* bits/sigthread.h */