2003-07-04 Benjamin Kosnik <bkoz@redhat.com>

	Move from CPP to CXX.
	* include/bits/c++config: Move to GLIBCXX from GLIBCPP.
	* testsuite/Makefile.am: Same.
	* testsuite/Makefile.in: Regenerate.
	* po/Makefile.am: Same.
	* po/Makefile.in: Regenerate.
	* libsupc++/Makefile.am: Same.
	* libsupc++/Makefile.in: Regenerate.
	* libmath/Makefile.am: Same.
	* libmath/Makefile.in: Regenerate.
	* include/Makefile.am: Same.
	* include/Makefile.in: Regenerate.
	* src/Makefile.am: Same.
	* src/Makefile.in: Regenerate.
	* acconfig.h: Same.
	* configure.host: Same.
	* configure.in: Same.
	* configure: Regenerate.
	* acinclude.m4: Same.
	* aclocal.m4: Same.
	* src: Change all files in this directory.
	* testsuite: Same.
	* include: Same, standardize include guards.
	* config: Same.
	* libsupc++: Same.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68958 138bc75d-0d04-0410-961f-82ee72b054a4

35 files changed, 96 insertions, 97 deletions

diff --git a/libstdc++-v3/include/backward/algo.h b/libstdc++-v3/include/backward/algo.h
index a3554a8f8d0..a56a1b38491 100644
--- a/libstdc++-v3/include/backward/algo.h
+++ b/libstdc++-v3/include/backward/algo.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_ALGO_H
-#define _CPP_BACKWARD_ALGO_H 1
+#ifndef _BACKWARD_ALGO_H
+#define _BACKWARD_ALGO_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -142,7 +142,7 @@ using __gnu_cxx::count_if;   // Extension returning void
 using __gnu_cxx::power; 
 using __gnu_cxx::iota; 
 
-#endif /* _CPP_BACKWARD_ALGO_H */
+#endif /* _BACKWARD_ALGO_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/algobase.h b/libstdc++-v3/include/backward/algobase.h
index 1606559828f..4cf82520d64 100644
--- a/libstdc++-v3/include/backward/algobase.h
+++ b/libstdc++-v3/include/backward/algobase.h
@@ -52,8 +52,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_ALGOBASE_H
-#define _CPP_BACKWARD_ALGOBASE_H 1
+#ifndef _BACKWARD_ALGOBASE_H
+#define _BACKWARD_ALGOBASE_H 1
 
 #include "backward_warning.h"
 #include "pair.h"
@@ -88,7 +88,7 @@ using __gnu_cxx::lexicographical_compare_3way;
 // Names from ext/memory
 using __gnu_cxx::uninitialized_copy_n;
 
-#endif /* _CPP_BACKWARD_ALGOBASE_H */
+#endif /* _BACKWARD_ALGOBASE_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/alloc.h b/libstdc++-v3/include/backward/alloc.h
index b748ef26c01..5781192bb33 100644
--- a/libstdc++-v3/include/backward/alloc.h
+++ b/libstdc++-v3/include/backward/alloc.h
@@ -40,8 +40,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_ALLOC_H
-#define _CPP_BACKWARD_ALLOC_H 1
+#ifndef _BACKWARD_ALLOC_H
+#define _BACKWARD_ALLOC_H 1
 
 #include "backward_warning.h"
 #include <bits/c++config.h>
diff --git a/libstdc++-v3/include/backward/backward_warning.h b/libstdc++-v3/include/backward/backward_warning.h
index 0f007bf364a..9e1377793ea 100644
--- a/libstdc++-v3/include/backward/backward_warning.h
+++ b/libstdc++-v3/include/backward/backward_warning.h
@@ -25,15 +25,15 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_BACKWARD_WARNING_H
-#define _CPP_BACKWARD_BACKWARD_WARNING_H 1
+#ifndef _BACKWARD_BACKWARD_WARNING_H
+#define _BACKWARD_BACKWARD_WARNING_H 1
 
 #ifdef __DEPRECATED
 #warning This file includes at least one deprecated or antiquated header. \
 Please consider using one of the 32 headers found in section 17.4.1.2 of the \
 C++ standard. Examples include substituting the <X> header for the <X.h> \
-header for C++ includes, or <sstream> instead of the deprecated header \
-<strstream.h>. To disable this warning use -Wno-deprecated.
+header for C++ includes, or <iostream> instead of the deprecated header \
+<iostream.h>. To disable this warning use -Wno-deprecated.
 #endif
 
 #endif
diff --git a/libstdc++-v3/include/backward/bvector.h b/libstdc++-v3/include/backward/bvector.h
index b114052933a..5d12914525e 100644
--- a/libstdc++-v3/include/backward/bvector.h
+++ b/libstdc++-v3/include/backward/bvector.h
@@ -53,16 +53,15 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef __SGI_STL_BVECTOR_H
-#define __SGI_STL_BVECTOR_H
-
+#ifndef _BACKWARD_BVECTOR_H
+#define _BACKWARD_BVECTOR_H 1
 
 #include "backward_warning.h"
 #include <vector>
 
 using std::bit_vector;
 
-#endif /* __SGI_STL_BVECTOR_H */
+#endif /* _BACKWARD_BVECTOR_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/complex.h b/libstdc++-v3/include/backward/complex.h
index 0e721744a6b..589fac73fce 100644
--- a/libstdc++-v3/include/backward/complex.h
+++ b/libstdc++-v3/include/backward/complex.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_COMPLEX_H
-#define _CPP_BACKWARD_COMPLEX_H 1
+#ifndef _BACKWARD_COMPLEX_H
+#define _BACKWARD_COMPLEX_H 1
 
 #include "backward_warning.h"
 #include <complex>
diff --git a/libstdc++-v3/include/backward/defalloc.h b/libstdc++-v3/include/backward/defalloc.h
index 264e2967c3c..98987fd0c0f 100644
--- a/libstdc++-v3/include/backward/defalloc.h
+++ b/libstdc++-v3/include/backward/defalloc.h
@@ -52,8 +52,8 @@
 // Standard-conforming allocators have a very different interface.  The
 // standard default allocator is declared in the header <memory>.
 
-#ifndef _CPP_BACKWARD_DEFALLOC_H
-#define _CPP_BACKWARD_DEFALLOC_H 1
+#ifndef _BACKWARD_DEFALLOC_H
+#define _BACKWARD_DEFALLOC_H 1
 
 #include "backward_warning.h"
 #include "new.h"
@@ -114,4 +114,4 @@ public:
 
 
 
-#endif /* _CPP_BACKWARD_DEFALLOC_H */
+#endif /* _BACKWARD_DEFALLOC_H */
diff --git a/libstdc++-v3/include/backward/deque.h b/libstdc++-v3/include/backward/deque.h
index 983ae07bac7..36c7479ef09 100644
--- a/libstdc++-v3/include/backward/deque.h
+++ b/libstdc++-v3/include/backward/deque.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_DEQUE_H
-#define _CPP_BACKWARD_DEQUE_H 1
+#ifndef _BACKWARD_DEQUE_H
+#define _BACKWARD_DEQUE_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -63,7 +63,7 @@
 
 using std::deque;
 
-#endif /* _CPP_BACKWARD_DEQUE_H */
+#endif /* _BACKWARD_DEQUE_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/fstream.h b/libstdc++-v3/include/backward/fstream.h
index 44461f464dd..6dfd514c2f3 100644
--- a/libstdc++-v3/include/backward/fstream.h
+++ b/libstdc++-v3/include/backward/fstream.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_FSTREAM_H
-#define _CPP_BACKWARD_FSTREAM_H 1
+#ifndef _BACKWARD_FSTREAM_H
+#define _BACKWARD_FSTREAM_H 1
 
 #include "backward_warning.h"
 #include <fstream>
@@ -37,7 +37,7 @@ using std::ofstream;
 using std::fstream;
 using std::streampos;
 
-#ifdef _GLIBCPP_USE_WCHAR_T
+#ifdef _GLIBCXX_USE_WCHAR_T
 using std::wfilebuf;
 using std::wifstream;
 using std::wofstream;
diff --git a/libstdc++-v3/include/backward/function.h b/libstdc++-v3/include/backward/function.h
index bc96f49ffab..19f29c81326 100644
--- a/libstdc++-v3/include/backward/function.h
+++ b/libstdc++-v3/include/backward/function.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_FUNCTION_H
-#define _CPP_BACKWARD_FUNCTION_H 1
+#ifndef _BACKWARD_FUNCTION_H
+#define _BACKWARD_FUNCTION_H 1
 
 #include "backward_warning.h"
 #include <bits/c++config.h>
@@ -123,7 +123,7 @@ using __gnu_cxx::subtractive_rng;
 using __gnu_cxx::mem_fun1; 
 using __gnu_cxx::mem_fun1_ref; 
 
-#endif /* _CPP_BACKWARD_FUNCTION_H */
+#endif /* _BACKWARD_FUNCTION_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/hash_map.h b/libstdc++-v3/include/backward/hash_map.h
index 25c177abb16..bc9c1482c8a 100644
--- a/libstdc++-v3/include/backward/hash_map.h
+++ b/libstdc++-v3/include/backward/hash_map.h
@@ -53,8 +53,8 @@
  *
  */
 
-#ifndef _CPP_BACKWARD_HASH_MAP_H
-#define _CPP_BACKWARD_HASH_MAP_H 1
+#ifndef _BACKWARD_HASH_MAP_H
+#define _BACKWARD_HASH_MAP_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -65,7 +65,7 @@ using __gnu_cxx::hashtable;
 using __gnu_cxx::hash_map;
 using __gnu_cxx::hash_multimap;
 
-#endif /* _CPP_BACKWARD_HASH_MAP_H */
+#endif /* _BACKWARD_HASH_MAP_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/hash_set.h b/libstdc++-v3/include/backward/hash_set.h
index ddb7a755e56..89307de0402 100644
--- a/libstdc++-v3/include/backward/hash_set.h
+++ b/libstdc++-v3/include/backward/hash_set.h
@@ -53,8 +53,8 @@
  *
  */
 
-#ifndef _CPP_BACKWARD_HASH_SET_H
-#define _CPP_BACKWARD_HASH_SET_H 1
+#ifndef _BACKWARD_HASH_SET_H
+#define _BACKWARD_HASH_SET_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -65,5 +65,5 @@ using __gnu_cxx::hashtable;
 using __gnu_cxx::hash_set;
 using __gnu_cxx::hash_multiset;
 
-#endif /* _CPP_BACKWARD_HASH_SET_H */
+#endif /* _BACKWARD_HASH_SET_H */
 
diff --git a/libstdc++-v3/include/backward/hashtable.h b/libstdc++-v3/include/backward/hashtable.h
index a707d9e2522..abedd55b001 100644
--- a/libstdc++-v3/include/backward/hashtable.h
+++ b/libstdc++-v3/include/backward/hashtable.h
@@ -57,8 +57,8 @@
  *   You should not attempt to use it directly.
  */
 
-#ifndef _CPP_BACKWARD_HASHTABLE_H
-#define _CPP_BACKWARD_HASHTABLE_H 1
+#ifndef _BACKWARD_HASHTABLE_H
+#define _BACKWARD_HASHTABLE_H 1
 
 #include "backward_warning.h"
 #include <ext/hashtable.h>
@@ -69,7 +69,7 @@
 using __gnu_cxx::hash;
 using __gnu_cxx::hashtable;
 
-#endif /* _CPP_BACKWARD_HASHTABLE_H */
+#endif /* _BACKWARD_HASHTABLE_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/heap.h b/libstdc++-v3/include/backward/heap.h
index 9308f0e7267..2f19545d0d7 100644
--- a/libstdc++-v3/include/backward/heap.h
+++ b/libstdc++-v3/include/backward/heap.h
@@ -52,8 +52,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_HEAP_H
-#define _CPP_BACKWARD_HEAP_H 1
+#ifndef _BACKWARD_HEAP_H
+#define _BACKWARD_HEAP_H 1
 
 #include "backward_warning.h"
 #include <bits/c++config.h>
@@ -64,7 +64,7 @@ using std::pop_heap;
 using std::make_heap;
 using std::sort_heap;
 
-#endif /* _CPP_BACKWARD_HEAP_H */
+#endif /* _BACKWARD_HEAP_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/iomanip.h b/libstdc++-v3/include/backward/iomanip.h
index 53286cda494..160dbebcdbf 100644
--- a/libstdc++-v3/include/backward/iomanip.h
+++ b/libstdc++-v3/include/backward/iomanip.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_IOMANIP_H
-#define _CPP_BACKWARD_IOMANIP_H 1
+#ifndef _BACKWARD_IOMANIP_H
+#define _BACKWARD_IOMANIP_H 1
 
 #include "backward_warning.h"
 #include "iostream.h"
diff --git a/libstdc++-v3/include/backward/iostream.h b/libstdc++-v3/include/backward/iostream.h
index 5346d9d22e8..5a5ccea62b7 100644
--- a/libstdc++-v3/include/backward/iostream.h
+++ b/libstdc++-v3/include/backward/iostream.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_IOSTREAM_H
-#define _CPP_BACKWARD_IOSTREAM_H 1
+#ifndef _BACKWARD_IOSTREAM_H
+#define _BACKWARD_IOSTREAM_H 1
 
 #include "backward_warning.h"
 #include <iostream>
@@ -41,7 +41,7 @@ using std::cout;
 using std::cin;
 using std::cerr;
 using std::clog;
-#ifdef _GLIBCPP_USE_WCHAR_T
+#ifdef _GLIBCXX_USE_WCHAR_T
 using std::wcout;
 using std::wcin;
 using std::wcerr;
diff --git a/libstdc++-v3/include/backward/istream.h b/libstdc++-v3/include/backward/istream.h
index 059e7742e2f..707b575a5bd 100644
--- a/libstdc++-v3/include/backward/istream.h
+++ b/libstdc++-v3/include/backward/istream.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_ISTREAM_H
-#define _CPP_BACKWARD_ISTREAM_H 1
+#ifndef _BACKWARD_ISTREAM_H
+#define _BACKWARD_ISTREAM_H 1
 
 #include "backward_warning.h"
 #include "iostream.h"
diff --git a/libstdc++-v3/include/backward/iterator.h b/libstdc++-v3/include/backward/iterator.h
index 179f457d324..4100049ee24 100644
--- a/libstdc++-v3/include/backward/iterator.h
+++ b/libstdc++-v3/include/backward/iterator.h
@@ -24,8 +24,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_ITERATOR_H
-#define _CPP_BACKWARD_ITERATOR_H 1
+#ifndef _BACKWARD_ITERATOR_H
+#define _BACKWARD_ITERATOR_H 1
 
 #include "backward_warning.h"
 #include "function.h"
@@ -155,7 +155,7 @@ template <class _ForwardIterator>
 // Names from stl_raw_storage_iter.h
 using std::raw_storage_iterator;
 
-#endif /* _CPP_BACKWARD_ITERATOR_H */
+#endif /* _BACKWARD_ITERATOR_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/list.h b/libstdc++-v3/include/backward/list.h
index 350a92a0991..00c11a6987d 100644
--- a/libstdc++-v3/include/backward/list.h
+++ b/libstdc++-v3/include/backward/list.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_LIST_H
-#define _CPP_BACKWARD_LIST_H 1
+#ifndef _BACKWARD_LIST_H
+#define _BACKWARD_LIST_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -63,7 +63,7 @@
 
 using std::list;
 
-#endif /* _CPP_BACKWARD_LIST_H */
+#endif /* _BACKWARD_LIST_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/map.h b/libstdc++-v3/include/backward/map.h
index 00f606d7e32..56d5c69973b 100644
--- a/libstdc++-v3/include/backward/map.h
+++ b/libstdc++-v3/include/backward/map.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_MAP_H
-#define _CPP_BACKWARD_MAP_H 1
+#ifndef _BACKWARD_MAP_H
+#define _BACKWARD_MAP_H 1
 
 #include "backward_warning.h"
 #include "tree.h"
@@ -62,7 +62,7 @@
 
 using std::map;
 
-#endif /* _CPP_BACKWARD_MAP_H */
+#endif /* _BACKWARD_MAP_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/multimap.h b/libstdc++-v3/include/backward/multimap.h
index b9cdc848360..aba42f7217f 100644
--- a/libstdc++-v3/include/backward/multimap.h
+++ b/libstdc++-v3/include/backward/multimap.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_MULTIMAP_H
-#define _CPP_BACKWARD_MULTIMAP_H 1
+#ifndef _BACKWARD_MULTIMAP_H
+#define _BACKWARD_MULTIMAP_H 1
 
 #include "backward_warning.h"
 #include "tree.h"
@@ -62,7 +62,7 @@
 
 using std::multimap;
 
-#endif /* _CPP_BACKWARD_MULTIMAP_H */
+#endif /* _BACKWARD_MULTIMAP_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/multiset.h b/libstdc++-v3/include/backward/multiset.h
index 8aa7fd34157..7ec0c9476c9 100644
--- a/libstdc++-v3/include/backward/multiset.h
+++ b/libstdc++-v3/include/backward/multiset.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_MULTISET_H
-#define _CPP_BACKWARD_MULTISET_H 1
+#ifndef _BACKWARD_MULTISET_H
+#define _BACKWARD_MULTISET_H 1
 
 #include "backward_warning.h"
 #include "tree.h"
@@ -62,7 +62,7 @@
 
 using std::multiset;
 
-#endif /* _CPP_BACKWARD_MULTISET_H */
+#endif /* _BACKWARD_MULTISET_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/new.h b/libstdc++-v3/include/backward/new.h
index 556ab1fc2ec..e39f97ae6b2 100644
--- a/libstdc++-v3/include/backward/new.h
+++ b/libstdc++-v3/include/backward/new.h
@@ -27,8 +27,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_NEW_H
-#define _CPP_BACKWARD_NEW_H 1
+#ifndef _BACKWARD_NEW_H
+#define _BACKWARD_NEW_H 1
 
 #include "backward_warning.h"
 #include <new>
diff --git a/libstdc++-v3/include/backward/ostream.h b/libstdc++-v3/include/backward/ostream.h
index 4c74756192e..2a65929f97a 100644
--- a/libstdc++-v3/include/backward/ostream.h
+++ b/libstdc++-v3/include/backward/ostream.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_OSTREAM_H
-#define _CPP_BACKWARD_OSTREAM_H 1
+#ifndef _BACKWARD_OSTREAM_H
+#define _BACKWARD_OSTREAM_H 1
 
 #include "backward_warning.h"
 #include "iostream.h"
diff --git a/libstdc++-v3/include/backward/pair.h b/libstdc++-v3/include/backward/pair.h
index f0ff7d7d689..cbb3bc7ed6d 100644
--- a/libstdc++-v3/include/backward/pair.h
+++ b/libstdc++-v3/include/backward/pair.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_PAIR_H
-#define _CPP_BACKWARD_PAIR_H 1
+#ifndef _BACKWARD_PAIR_H
+#define _BACKWARD_PAIR_H 1
 
 #include "backward_warning.h"
 #include <bits/c++config.h>
@@ -63,7 +63,7 @@
 using std::pair;
 using std::make_pair;
 
-#endif /* _CPP_BACKWARD_PAIR_H */
+#endif /* _BACKWARD_PAIR_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/queue.h b/libstdc++-v3/include/backward/queue.h
index 1d3b29c36b5..e092ac27263 100644
--- a/libstdc++-v3/include/backward/queue.h
+++ b/libstdc++-v3/include/backward/queue.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_QUEUE_H
-#define _CPP_BACKWARD_QUEUE_H 1
+#ifndef _BACKWARD_QUEUE_H
+#define _BACKWARD_QUEUE_H 1
 
 #include "backward_warning.h"
 #include <queue>
diff --git a/libstdc++-v3/include/backward/rope.h b/libstdc++-v3/include/backward/rope.h
index 5f4c7875295..b6b18c2ab2b 100644
--- a/libstdc++-v3/include/backward/rope.h
+++ b/libstdc++-v3/include/backward/rope.h
@@ -40,8 +40,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_ROPE_H
-#define _CPP_BACKWARD_ROPE_H 1
+#ifndef _BACKWARD_ROPE_H
+#define _BACKWARD_ROPE_H 1
 
 #include "backward_warning.h"
 #include "hashtable.h"   
@@ -53,7 +53,7 @@ using __gnu_cxx::rope;
 using __gnu_cxx::crope; 
 using __gnu_cxx::wrope; 
 
-#endif /* _CPP_BACKWARD_ROPE_H */
+#endif /* _BACKWARD_ROPE_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/set.h b/libstdc++-v3/include/backward/set.h
index c1892554495..6a8320ba42f 100644
--- a/libstdc++-v3/include/backward/set.h
+++ b/libstdc++-v3/include/backward/set.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_SET_H
-#define _CPP_BACKWARD_SET_H 1
+#ifndef _BACKWARD_SET_H
+#define _BACKWARD_SET_H 1
 
 #include "backward_warning.h"
 #include "tree.h"
@@ -62,7 +62,7 @@
 
 using std::set;
 
-#endif /* _CPP_BACKWARD_SET_H */
+#endif /* _BACKWARD_SET_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/slist.h b/libstdc++-v3/include/backward/slist.h
index decf04df661..63db065fe35 100644
--- a/libstdc++-v3/include/backward/slist.h
+++ b/libstdc++-v3/include/backward/slist.h
@@ -41,15 +41,15 @@
  *
  */
 
-#ifndef _CPP_BACKWARD_SLIST_H
-#define _CPP_BACKWARD_SLIST_H 1
+#ifndef _BACKWARD_SLIST_H
+#define _BACKWARD_SLIST_H 1
 
 #include "backward_warning.h"
 #include <ext/slist>
 
 using __gnu_cxx::slist;
 
-#endif /* _CPP_BACKWARD_SLIST_H */
+#endif /* _BACKWARD_SLIST_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/stack.h b/libstdc++-v3/include/backward/stack.h
index 6f602936630..0ff53a43572 100644
--- a/libstdc++-v3/include/backward/stack.h
+++ b/libstdc++-v3/include/backward/stack.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_STACK_H
-#define _CPP_BACKWARD_STACK_H 1
+#ifndef _BACKWARD_STACK_H
+#define _BACKWARD_STACK_H 1
 
 #include "backward_warning.h"
 #include "vector.h"
@@ -65,7 +65,7 @@
 
 using std::stack;
 
-#endif /* _CPP_BACKWARD_STACK_H */
+#endif /* _BACKWARD_STACK_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/stream.h b/libstdc++-v3/include/backward/stream.h
index 21a851decd8..8371b056a13 100644
--- a/libstdc++-v3/include/backward/stream.h
+++ b/libstdc++-v3/include/backward/stream.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_STREAM_H
-#define _CPP_BACKWARD_STREAM_H 1
+#ifndef _BACKWARD_STREAM_H
+#define _BACKWARD_STREAM_H 1
 
 #include "backward_warning.h"
 #include "iostream.h"
diff --git a/libstdc++-v3/include/backward/streambuf.h b/libstdc++-v3/include/backward/streambuf.h
index aef863ff133..35a3c672dd2 100644
--- a/libstdc++-v3/include/backward/streambuf.h
+++ b/libstdc++-v3/include/backward/streambuf.h
@@ -25,8 +25,8 @@
 // invalidate any other reasons why the executable file might be covered by
 // the GNU General Public License.
 
-#ifndef _CPP_BACKWARD_STREAMBUF_H
-#define _CPP_BACKWARD_STREAMBUF_H 1
+#ifndef _BACKWARD_STREAMBUF_H
+#define _BACKWARD_STREAMBUF_H 1
 
 #include "backward_warning.h"
 #include <streambuf>
diff --git a/libstdc++-v3/include/backward/tempbuf.h b/libstdc++-v3/include/backward/tempbuf.h
index f47e707808a..75b9b8bbe45 100644
--- a/libstdc++-v3/include/backward/tempbuf.h
+++ b/libstdc++-v3/include/backward/tempbuf.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_TEMPBUF_H
-#define _CPP_BACKWARD_TEMPBUF_H 1
+#ifndef _BACKWARD_TEMPBUF_H
+#define _BACKWARD_TEMPBUF_H 1
 
 #include "backward_warning.h"
 #include "pair.h"
@@ -71,7 +71,7 @@ using std::get_temporary_buffer;
 using std::return_temporary_buffer;
 using __gnu_cxx::temporary_buffer;
 
-#endif /* _CPP_BACKWARD_TEMPBUF_H */
+#endif /* _BACKWARD_TEMPBUF_H */
 
 // Local Variables:
 // mode:C++
diff --git a/libstdc++-v3/include/backward/tree.h b/libstdc++-v3/include/backward/tree.h
index f3ee6525b88..ca3ff897594 100644
--- a/libstdc++-v3/include/backward/tree.h
+++ b/libstdc++-v3/include/backward/tree.h
@@ -41,8 +41,8 @@
  *
  */
 
-#ifndef _CPP_EXT_TREE
-#define _CPP_EXT_TREE 1
+#ifndef _BACKWARD_TREE
+#define _BACKWARD_TREE 1
 
 #include "backward_warning.h"
 #include <ext/rb_tree>
diff --git a/libstdc++-v3/include/backward/vector.h b/libstdc++-v3/include/backward/vector.h
index 77880686f0d..961f41a7840 100644
--- a/libstdc++-v3/include/backward/vector.h
+++ b/libstdc++-v3/include/backward/vector.h
@@ -53,8 +53,8 @@
  * purpose.  It is provided "as is" without express or implied warranty.
  */
 
-#ifndef _CPP_BACKWARD_VECTOR_H
-#define _CPP_BACKWARD_VECTOR_H 1
+#ifndef _BACKWARD_VECTOR_H
+#define _BACKWARD_VECTOR_H 1
 
 #include "backward_warning.h"
 #include "algobase.h"
@@ -63,7 +63,7 @@
 
 using std::vector;
 
-#endif /* _CPP_BACKWARD_VECTOR_H */
+#endif /* _BACKWARD_VECTOR_H */
 
 // Local Variables:
 // mode:C++