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diff --git a/lib/glthread/tls.c b/lib/glthread/tls.c
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+/* Thread-local storage in multithreaded situations.
+ Copyright (C) 2005-2013 Free Software Foundation, Inc.
+
+ 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2005. */
+
+#include <config.h>
+
+#include "glthread/tls.h"
+
+/* ========================================================================= */
+
+#if USE_POSIX_THREADS
+
+#endif
+
+/* ========================================================================= */
+
+#if USE_PTH_THREADS
+
+#endif
+
+/* ========================================================================= */
+
+#if USE_SOLARIS_THREADS
+
+/* Use the old Solaris threads library. */
+
+/* ------------------------- gl_tls_key_t datatype ------------------------- */
+
+void *
+glthread_tls_get_multithreaded (thread_key_t key)
+{
+ void *value;
+
+ if (thr_getspecific (key, &value) != 0)
+ abort ();
+ return value;
+}
+
+#endif
+
+/* ========================================================================= */
+
+#if USE_WINDOWS_THREADS
+
+#endif
+
+/* ========================================================================= */