c++config (_GLIBCXX_ABI_TAG_CXX11): Add.

2013-06-10  Benjamin Kosnik  <bkoz@redhat.com>

	* include/bits/c++config (_GLIBCXX_ABI_TAG_CXX11): Add.
	* include/bits/stl_map.h (erase): Use abi_tag when C++11.
	* include/bits/stl_multimap.h: Same.
	* include/bits/stl_multiset.h: Same.
	* include/bits/stl_set.h: Same.
	* include/bits/stl_tree.h: Same.
	* include/std/complex (real, imag): Use macro for abi_tag.

	* testsuite/lib/libstdc++.exp: Disable inlinling with -fno-inline.
	* testsuite/util/testsuite_containers.h (erase_external): New
	declarations.
	(erase_external_iterators): Same.
	(linkage_check_cxx98_cxx11_erase): Same.
	(linkage_check_cxx98_cxx11_erase_iterators): Same.
	* testsuite/util/testsuite_shared.cc: Define.
	* testsuite/23_containers/map/modifiers/erase/abi_tag.cc: New.
	* testsuite/23_containers/map/modifiers/erase/
	dr130-linkage-check.cc: New.
	* testsuite/23_containers/multimap/modifiers/erase/abi_tag.cc: New.
	* testsuite/23_containers/multimap/modifiers/erase/
	dr130-linkage-check.cc: New.
	* testsuite/23_containers/multiset/modifiers/erase/abi_tag.cc: New.
	* testsuite/23_containers/multiset/modifiers/erase/
	dr130-linkage-check.cc: New.
	* testsuite/23_containers/set/modifiers/erase/abi_tag.cc: New.
	* testsuite/23_containers/set/modifiers/erase/dr130-linkage-check.cc:
	New.
	* testsuite/ext/profile/mutex_extensions_neg.cc: Adjust line number.

	* testsuite/23_containers/map/dr130.cc: Move...
	* testsuite/23_containers/map/modifiers/dr130.cc: ...here.
	* testsuite/23_containers/multimap/dr130.cc: Move ...
	* testsuite/23_containers/multimap/modifiers/dr130.cc: ...here.
	* testsuite/23_containers/multiset/dr130.cc: Move...
	* testsuite/23_containers/multiset/modifiers/dr130.cc: ...here.
	* testsuite/23_containers/set/dr130.cc: Move...
	* testsuite/23_containers/set/modifiers/dr130.cc: ...here.

From-SVN: r199924

libstdc++-v3/ChangeLog

+2013-06-10  Benjamin Kosnik  <bkoz@redhat.com>
+
+	* include/bits/c++config (_GLIBCXX_ABI_TAG_CXX11): Add.
+	* include/bits/stl_map.h (erase): Use abi_tag when C++11.
+	* include/bits/stl_multimap.h: Same.
+	* include/bits/stl_multiset.h: Same.
+	* include/bits/stl_set.h: Same.
+	* include/bits/stl_tree.h: Same.
+	* include/std/complex (real, imag): Use macro for abi_tag.
+
+	* testsuite/lib/libstdc++.exp: Disable inlinling with -fno-inline.
+	* testsuite/util/testsuite_containers.h (erase_external): New
+	declarations.
+	(erase_external_iterators): Same.
+	(linkage_check_cxx98_cxx11_erase): Same.
+	(linkage_check_cxx98_cxx11_erase_iterators): Same.
+	* testsuite/util/testsuite_shared.cc: Define.
+	* testsuite/23_containers/map/modifiers/erase/abi_tag.cc: New.
+	* testsuite/23_containers/map/modifiers/erase/
+	dr130-linkage-check.cc: New.
+	* testsuite/23_containers/multimap/modifiers/erase/abi_tag.cc: New.
+	* testsuite/23_containers/multimap/modifiers/erase/
+	dr130-linkage-check.cc: New.
+	* testsuite/23_containers/multiset/modifiers/erase/abi_tag.cc: New.
+	* testsuite/23_containers/multiset/modifiers/erase/
+	dr130-linkage-check.cc: New.
+	* testsuite/23_containers/set/modifiers/erase/abi_tag.cc: New.
+	* testsuite/23_containers/set/modifiers/erase/dr130-linkage-check.cc:
+	New.
+	* testsuite/ext/profile/mutex_extensions_neg.cc: Adjust line number.
+
+	* testsuite/23_containers/map/dr130.cc: Move...
+	* testsuite/23_containers/map/modifiers/dr130.cc: ...here.
+	* testsuite/23_containers/multimap/dr130.cc: Move ...
+	* testsuite/23_containers/multimap/modifiers/dr130.cc: ...here.
+	* testsuite/23_containers/multiset/dr130.cc: Move...
+	* testsuite/23_containers/multiset/modifiers/dr130.cc: ...here.
+	* testsuite/23_containers/set/dr130.cc: Move...
+	* testsuite/23_containers/set/modifiers/dr130.cc: ...here.
+
 2013-06-10  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* testsuite/17_intro/headers/c++1998/49745.cc: Extend current

libstdc++-v3/include/bits/c++config

@@ -84,6 +84,12 @@
 # define _GLIBCXX_DEPRECATED
 #endif
 
+// Macros for ABI tag attributes.
+#ifndef _GLIBCXX_ABI_TAG_CXX11
+# define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
+#endif
+
+
 #if __cplusplus
 
 // Macro for constexpr, to support in mixed 03/0x mode.

libstdc++-v3/include/bits/stl_map.h

@@ -690,7 +690,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
       erase(const_iterator __position)
       { return _M_t.erase(__position); }
 
-      // LWG 2059.
+      // LWG 2059
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(iterator __position)
       { return _M_t.erase(__position); }

libstdc++-v3/include/bits/stl_multimap.h

@@ -596,6 +596,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
       { return _M_t.erase(__position); }
 
       // LWG 2059.
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(iterator __position)
       { return _M_t.erase(__position); }

libstdc++-v3/include/bits/stl_multiset.h

@@ -532,6 +532,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  not touched in any way.  Managing the pointer is the user's
        *  responsibility.
        */
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __position)
       { return _M_t.erase(__position); }
@@ -583,6 +584,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  touched in any way.  Managing the pointer is the user's
        *  responsibility.
        */
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __first, const_iterator __last)
       { return _M_t.erase(__first, __last); }

libstdc++-v3/include/bits/stl_set.h

@@ -546,6 +546,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  touched in any way.  Managing the pointer is the user's
        *  responsibility.
        */
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __position)
       { return _M_t.erase(__position); }
@@ -597,6 +598,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  the element is itself a pointer, the pointed-to memory is not touched
        *  in any way.  Managing the pointer is the user's responsibility.
        */
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __first, const_iterator __last)
       { return _M_t.erase(__first, __last); }

libstdc++-v3/include/bits/stl_tree.h

@@ -336,21 +336,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
               _Node_allocator;
 
     protected:
-      typedef _Rb_tree_node_base* _Base_ptr;
-      typedef const _Rb_tree_node_base* _Const_Base_ptr;
+      typedef _Rb_tree_node_base* 		_Base_ptr;
+      typedef const _Rb_tree_node_base* 	_Const_Base_ptr;
 
     public:
-      typedef _Key key_type;
-      typedef _Val value_type;
-      typedef value_type* pointer;
-      typedef const value_type* const_pointer;
-      typedef value_type& reference;
-      typedef const value_type& const_reference;
-      typedef _Rb_tree_node<_Val>* _Link_type;
-      typedef const _Rb_tree_node<_Val>* _Const_Link_type;
-      typedef size_t size_type;
-      typedef ptrdiff_t difference_type;
-      typedef _Alloc allocator_type;
+      typedef _Key 				key_type;
+      typedef _Val 				value_type;
+      typedef value_type* 			pointer;
+      typedef const value_type* 		const_pointer;
+      typedef value_type& 			reference;
+      typedef const value_type& 		const_reference;
+      typedef _Rb_tree_node<_Val>* 		_Link_type;
+      typedef const _Rb_tree_node<_Val>*	_Const_Link_type;
+      typedef size_t 				size_type;
+      typedef ptrdiff_t 			difference_type;
+      typedef _Alloc 				allocator_type;
 
       _Node_allocator&
       _M_get_Node_allocator() _GLIBCXX_NOEXCEPT
@@ -800,6 +800,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cplusplus >= 201103L
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // DR 130. Associative erase should return an iterator.
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __position)
       {
@@ -810,6 +811,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       }
 
       // LWG 2059.
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(iterator __position)
       {
@@ -833,6 +835,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cplusplus >= 201103L
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // DR 130. Associative erase should return an iterator.
+      _GLIBCXX_ABI_TAG_CXX11
       iterator
       erase(const_iterator __first, const_iterator __last)
       {

libstdc++-v3/include/std/complex

@@ -142,11 +142,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cplusplus >= 201103L
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // DR 387. std::complex over-encapsulated.
-      __attribute ((__abi_tag__ ("cxx11")))
+      _GLIBCXX_ABI_TAG_CXX11
       constexpr _Tp 
       real() { return _M_real; }
 
-      __attribute ((__abi_tag__ ("cxx11")))
+      _GLIBCXX_ABI_TAG_CXX11
       constexpr _Tp 
       imag() { return _M_imag; }
 #else

libstdc++-v3/testsuite/23_containers/map/modifiers/erase/abi_tag.cc

+// { dg-do compile }
+// { dg-options -std=c++11 }
+
+// Copyright (C) 2013 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Test that the C++11 variants have an ABI tag
+
+#include <map>
+
+using container = std::map<int, int>;
+using iterator = typename container::iterator;
+using const_iterator = typename container::const_iterator;
+
+// { dg-final { scan-assembler "_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E" } }
+iterator (container::*p1)(iterator) = &container::erase;

libstdc++-v3/testsuite/23_containers/map/modifiers/erase/dr130-linkage-check.cc

+// { dg-require-effective-target ia32 }
+// { dg-require-sharedlib "" }
+// { dg-options "-fno-inline -std=gnu++11 ./testsuite_shared.so" }
+// 2013-06-03  Benjamin Kosnik  <bkoz@redhat..com>
+//
+// Copyright (C) 2013 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/>.
+
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::map<int, int>		container_type;
+
+  {
+    container_type s { {0,0} , {1,1} , {2,2} };
+    __gnu_test::linkage_check_cxx98_cxx11_erase(s);
+  }
+
+  {
+    container_type s { {0,0} , {1,1} , {2,2} };
+    __gnu_test::linkage_check_cxx98_cxx11_erase_iterators(s);
+  }
+
+  return 0;
+}

libstdc++-v3/testsuite/23_containers/multimap/modifiers/erase/abi_tag.cc

+// { dg-do compile }
+// { dg-options -std=c++11 }
+
+// Copyright (C) 2013 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Test that the C++11 variants have an ABI tag
+
+#include <map>
+
+using container = std::multimap<int, int>;
+using iterator = typename container::iterator;
+using const_iterator = typename container::const_iterator;
+
+// { dg-final { scan-assembler "_ZNSt8multimapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E" } }
+iterator (container::*p1)(iterator) = &container::erase;

libstdc++-v3/testsuite/23_containers/multimap/modifiers/erase/dr130-linkage-check.cc

+// { dg-require-effective-target ia32 }
+// { dg-require-sharedlib "" }
+// { dg-options "-fno-inline -std=gnu++11 ./testsuite_shared.so" }
+// 2013-06-03  Benjamin Kosnik  <bkoz@redhat..com>
+//
+// Copyright (C) 2013 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/>.
+
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::multimap<int, int>		container_type;
+
+  {
+    container_type s { {0,0} , {1,1} , {2,2} };
+    __gnu_test::linkage_check_cxx98_cxx11_erase(s);
+  }
+
+  {
+    container_type s { {0,0} , {1,1} , {2,2} };
+    __gnu_test::linkage_check_cxx98_cxx11_erase_iterators(s);
+  }
+
+  return 0;
+}

libstdc++-v3/testsuite/23_containers/multiset/modifiers/erase/abi_tag.cc

+// { dg-do compile }
+// { dg-options -std=c++11 }
+
+// Copyright (C) 2013 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Test that the C++11 variants have an ABI tag
+
+#include <set>
+
+using container = std::multiset<int>;
+using iterator = typename container::iterator;
+using const_iterator = typename container::const_iterator;
+
+// { dg-final { scan-assembler "_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE" } }
+iterator (container::*p1)(const_iterator) = &container::erase;
+
+// { dg-final { scan-assembler "_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiES5_" } }
+iterator (container::*p2)(const_iterator, const_iterator) = &container::erase;

libstdc++-v3/testsuite/23_containers/multiset/modifiers/erase/dr130-linkage-check.cc

+// { dg-require-effective-target ia32 }
+// { dg-require-sharedlib "" }
+// { dg-options "-fno-inline -std=gnu++11 ./testsuite_shared.so" }
+// 2013-06-03  Benjamin Kosnik  <bkoz@redhat..com>
+//
+// Copyright (C) 2013 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/>.
+
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::multiset<int>			container_type;
+
+  {
+    container_type s { 0, 1, 2 };
+    __gnu_test::linkage_check_cxx98_cxx11_erase(s);
+  }
+
+  {
+    container_type s { 0, 1, 2 };
+    __gnu_test::linkage_check_cxx98_cxx11_erase_iterators(s);
+  }
+
+  return 0;
+}

libstdc++-v3/testsuite/23_containers/set/modifiers/erase/abi_tag.cc

+// { dg-do compile }
+// { dg-options -std=c++11 }
+
+// Copyright (C) 2013 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Test that the C++11 variants have an ABI tag
+
+#include <set>
+
+using container = std::set<int>;
+using iterator = typename container::iterator;
+using const_iterator = typename container::const_iterator;
+
+// { dg-final { scan-assembler "_ZNSt3setIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE" } }
+iterator (container::*p1)(const_iterator) = &container::erase;
+
+// { dg-final { scan-assembler "_ZNSt3setIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiES5_" } }
+iterator (container::*p2)(const_iterator, const_iterator) = &container::erase;

libstdc++-v3/testsuite/23_containers/set/modifiers/erase/dr130-linkage-check.cc

+// { dg-require-effective-target ia32 }
+// { dg-require-sharedlib "" }
+// { dg-options "-fno-inline -std=gnu++11 ./testsuite_shared.so" }
+// 2013-06-03  Benjamin Kosnik  <bkoz@redhat..com>
+//
+// Copyright (C) 2013 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/>.
+
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::set<int>			container_type;
+
+  {
+    container_type s { 0, 1, 2 };
+    __gnu_test::linkage_check_cxx98_cxx11_erase(s);
+  }
+
+  {
+    container_type s { 0, 1, 2 };
+    __gnu_test::linkage_check_cxx98_cxx11_erase_iterators(s);
+  }
+
+  return 0;
+}

libstdc++-v3/testsuite/ext/profile/mutex_extensions_neg.cc

@@ -25,4 +25,4 @@
 
 #include <vector>
 
-// { dg-error "multiple inlined namespaces" "" { target *-*-* } 269 }
+// { dg-error "multiple inlined namespaces" "" { target *-*-* } 275 }

libstdc++-v3/testsuite/lib/libstdc++.exp

@@ -628,7 +628,7 @@ proc v3-build_support { } {
 	    # Compile with "-w" so that warnings issued by the compiler
 	    # do not prevent compilation.
 	    if { [v3_target_compile $srcdir/util/$f $object_file "sharedlib" \
-	     [list "incdir=$srcdir" "additional_flags=-w -shared -fPIC -DPIC"]]
+	     [list "incdir=$srcdir" "additional_flags=-fno-inline -w -shared -fPIC -DPIC"]]
 		 != "" } {
 		error "could not compile $f"
 	    }

libstdc++-v3/testsuite/util/testsuite_containers.h

@@ -223,6 +223,58 @@ namespace __gnu_test
   template<typename _Tp>
   _Tp citerator<_Tp>::_S_container;
 
+  // DR 130 vs. C++98 vs. C++11.
+  // Defined in testsuite_shared.cc.
+  void 
+  erase_external(std::set<int>& s);
+
+  void 
+  erase_external(std::multiset<int>& s);
+
+  void 
+  erase_external(std::map<int, int>& s);
+
+  void 
+  erase_external(std::multimap<int, int>& s);
+
+  void 
+  erase_external_iterators(std::set<int>& s);
+
+  void 
+  erase_external_iterators(std::multiset<int>& s);
+
+  void 
+  erase_external_iterators(std::map<int, int>& s);
+
+  void 
+  erase_external_iterators(std::multimap<int, int>& s);
+
+// NB: "must be compiled with C++11"
+#if __cplusplus >= 201103L
+template<typename _Tp>
+  void 
+  linkage_check_cxx98_cxx11_erase(_Tp& container)
+  {
+    // Crashing when exteral reference and internal reference symbols are
+    // equivalently mangled but have different size return types in C++98
+    // and C++11 signatures.
+    erase_external(container); 		// C++98
+    container.erase(container.begin());	// C++11
+  }
+
+template<typename _Tp>
+  void 
+  linkage_check_cxx98_cxx11_erase_iterators(_Tp& container)
+  {
+    // Crashing when exteral reference and internal reference symbols are
+    // equivalently mangled but have different size return types in C++98
+    // and C++11 signatures.
+    erase_external_iterators(container);// C++98
+
+    auto iter = container.begin();
+    container.erase(iter, ++iter);	// C++11
+  }
+#endif
 
 } // namespace __gnu_test
 

libstdc++-v3/testsuite/util/testsuite_shared.cc

@@ -19,9 +19,13 @@
 #include <stdexcept>
 #include <iostream>
 #include <sstream>
+#include <set>
+#include <map>
 #include <ext/mt_allocator.h>
 #include <bits/functexcept.h>
 
+namespace __gnu_test
+{
 // libstdc++/22309
 extern "C" void
 try_allocation()
@@ -70,3 +74,57 @@ try_function_random_fail()
   // Randomly throw. See if other threads cleanup.
   std::__throw_bad_exception();
 }
+
+#if __cplusplus < 201103L
+// "must be compiled with C++98"
+  void 
+  erase_external(std::set<int>& s)
+  { s.erase(s.begin()); }
+
+  void 
+  erase_external(std::multiset<int>& s)
+  { s.erase(s.begin()); }
+  
+  void 
+  erase_external(std::map<int, int>& s)
+  { s.erase(s.begin()); }
+  
+  void 
+  erase_external(std::multimap<int, int>& s)
+  { s.erase(s.begin()); }
+
+  void 
+  erase_external_iterators(std::set<int>& s)
+  {
+    typedef typename std::set<int>::iterator iterator_type;
+    iterator_type iter = s.begin();
+    s.erase(iter, ++iter);
+  }
+
+  void 
+  erase_external_iterators(std::multiset<int>& s)
+  {
+    typedef typename std::multiset<int>::iterator iterator_type;
+    iterator_type iter = s.begin();
+    s.erase(iter, ++iter);
+  }
+
+  void 
+  erase_external_iterators(std::map<int, int>& s)
+  {
+    typedef typename std::map<int, int>::iterator iterator_type;
+    iterator_type iter = s.begin();
+    s.erase(iter, ++iter);
+  }
+
+  
+  void 
+  erase_external_iterators(std::multimap<int, int>& s)
+  {
+    typedef typename std::multimap<int, int>::iterator iterator_type;
+    iterator_type iter = s.begin();
+    s.erase(iter, ++iter);
+  }
+#endif
+
+} // end namepace __gnu_test