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diff --git a/libpthread/nptl/pthread_setconcurrency.c b/libpthread/nptl/pthread_setconcurrency.c
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+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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. */
+
+#include <errno.h>
+#include "pthreadP.h"
+
+
+/* Global definition. Needed in pthread_getconcurrency as well. */
+int __concurrency_level;
+
+
+int
+pthread_setconcurrency (level)
+ int level;
+{
+ if (level < 0)
+ return EINVAL;
+
+ __concurrency_level = level;
+
+ /* XXX For ports which actually need to handle the concurrency level
+ some more code is probably needed here. */
+
+ return 0;
+}