+2016-01-20 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/69386
+ * include/c_global/ccomplex: Ensure C++ language linkage.
+ * include/c_global/cmath: Likewise.
+ * include/c_global/cstdlib: Likewise.
+ * include/c_global/ctgmath: Likewise.
+ * testsuite/17_intro/headers/c++2011/linkage.cc: New.
+
2016-01-19 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/14608
#undef wcstombs
#undef wctomb
+extern "C++"
+{
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif // _GLIBCXX_USE_C99_STDLIB
+} // extern "C++"
+
#endif // !_GLIBCXX_HOSTED
#endif
--- /dev/null
+// Copyright (C) 2016 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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, or (at your option)
+// any later version.
+
+// This 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 General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++11" }
+// { dg-do compile }
+
+// libstdc++/69386
+
+extern "C"
+{
+#include <assert.h>
+#include <complex.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fenv.h>
+#include <float.h>
+#include <inttypes.h>
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <tgmath.h>
+#include <time.h>
+#include <uchar.h>
+#include <wchar.h>
+#include <wctype.h>
+}