PR libstdc++/22109

	* src/compatibility.cc (_GLIBCXX_SYMVER_COMPATIBILITY): Remove.
	(istreambuf_iterator, basic_fstream, basic_ifstream, basic_ofstream,
	_M_copy, _M_move, _M_assign, _M_disjunct, _M_check_length,
	_M_set_length_and_sharable, ignore, eq): Define to XX suffixed
	variants.
	(ignore (streamsize)): Remove _W prefixed aliases.
	(_GLIBCXX_3_4_SYMVER_SPECIAL, _GLIBCXX_3_4_5_SYMVER_SPECIAL,
	_GLIBCXX_APPLY_SYMVER_SPECIAL): Remove.
	(_GLIBCXX_3_4_SYMVER, _GLIBCXX_3_4_5_SYMVER): Add XXname argument.
	Use #XXname instead of #name as the alias argument.
	* config/abi/compatibility.h: Replace uses of
	_GLIBCXX_APPLY_SYMVER_SPECIAL with _GLIBCXX_APPLY_SYMVER.  Always
	pass 2 arguments to the _GLIBCXX_APPLY_SYMVER macro.
	* include/bits/char_traits.h (char_traits::eq): Revert 2005-06-15
	change.
	* acinclude.m4: Decrease glibcxx_min_gnu_ld_version back to 21400.
	* configure: Rebuilt.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101273 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 16 insertions, 42 deletions

diff --git a/libstdc++-v3/src/compatibility.cc b/libstdc++-v3/src/compatibility.cc
index 380649d8f18..1deb56c3f30 100644
--- a/libstdc++-v3/src/compatibility.cc
+++ b/libstdc++-v3/src/compatibility.cc
@@ -31,7 +31,18 @@
 #include <bits/c++config.h>
 
 #if defined(_GLIBCXX_SYMVER) && defined(PIC)
-# define _GLIBCXX_SYMVER_COMPATIBILITY 1
+#define istreambuf_iterator istreambuf_iteratorXX
+#define basic_fstream basic_fstreamXX
+#define basic_ifstream basic_ifstreamXX
+#define basic_ofstream basic_ofstreamXX
+#define _M_copy(a, b, c) _M_copyXX(a, b, c)
+#define _M_move(a, b, c) _M_moveXX(a, b, c)
+#define _M_assign(a, b, c) _M_assignXX(a, b, c)
+#define _M_disjunct(a) _M_disjunctXX(a)
+#define _M_check_length(a, b, c) _M_check_lengthXX(a, b, c)
+#define _M_set_length_and_sharable(a) _M_set_length_and_sharableXX(a)
+#define ignore ignoreXX
+#define eq eqXX
 #endif
 
 #include <string>
@@ -42,27 +53,6 @@
 namespace std
 {
   // std::istream ignore explicit specializations.
-#if defined(_GLIBCXX_SYMVER) && defined(PIC)
-  template<>
-    basic_istream<char>&
-    basic_istream<char>::ignore(streamsize __n) 
-#ifdef _GLIBCXX_PTRDIFF_T_IS_INT
-    asm ("_W_ZNSi6ignoreEi");
-#else
-    asm ("_W_ZNSi6ignoreEl");
-#endif
-
-#ifdef _GLIBCXX_USE_WCHAR_T
-  template<>
-    basic_istream<wchar_t>&
-    basic_istream<wchar_t>::ignore(streamsize __n)
-#ifdef _GLIBCXX_PTRDIFF_T_IS_INT
-     asm ("_W_ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreEi");
-#else
-     asm ("_W_ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreEl");
-#endif
-#endif
-#endif // _GLIBCXX_SYMVER && PIC
 
   template<>
     basic_istream<char>&
@@ -347,43 +337,27 @@ namespace std
 // In the future, GLIBCXX_ABI > 6 should remove all uses of
 // _GLIBCXX_*_SYMVER macros in this file.
 
-#define _GLIBCXX_3_4_SYMVER(name) \
-   extern "C" void \
-   _X##name() \
-   __attribute__ ((alias(#name))); \
-   asm (".symver " "_X" #name "," #name "@GLIBCXX_3.4");
-
-#define _GLIBCXX_3_4_5_SYMVER(name) \
-   extern "C" void \
-   _Y##name() \
-   __attribute__ ((alias(#name))); \
-   asm (".symver " "_Y" #name  "," #name "@@GLIBCXX_3.4.5");
-
-#define _GLIBCXX_3_4_SYMVER_SPECIAL(name) \
+#define _GLIBCXX_3_4_SYMVER(XXname, name) \
    extern "C" void \
    _X##name() \
-   __attribute__ ((alias("_W" #name))); \
+   __attribute__ ((alias(#XXname))); \
    asm (".symver " "_X" #name "," #name "@GLIBCXX_3.4");
 
-#define _GLIBCXX_3_4_5_SYMVER_SPECIAL(name) \
+#define _GLIBCXX_3_4_5_SYMVER(XXname, name) \
    extern "C" void \
    _Y##name() \
-   __attribute__ ((alias("_W" #name))); \
+   __attribute__ ((alias(#XXname))); \
    asm (".symver " "_Y" #name  "," #name "@@GLIBCXX_3.4.5");
 
 #define _GLIBCXX_ASM_SYMVER(cur, old, version) \
    asm (".symver " #cur "," #old "@@" #version);
 
 #define _GLIBCXX_APPLY_SYMVER _GLIBCXX_3_4_SYMVER
-#define _GLIBCXX_APPLY_SYMVER_SPECIAL _GLIBCXX_3_4_SYMVER_SPECIAL
 #include <bits/compatibility.h>
 #undef _GLIBCXX_APPLY_SYMVER
-#undef _GLIBCXX_APPLY_SYMVER_SPECIAL
 
 #define _GLIBCXX_APPLY_SYMVER _GLIBCXX_3_4_5_SYMVER
-#define _GLIBCXX_APPLY_SYMVER_SPECIAL _GLIBCXX_3_4_5_SYMVER_SPECIAL
 #include <bits/compatibility.h>
 #undef _GLIBCXX_APPLY_SYMVER
-#undef _GLIBCXX_APPLY_SYMVER_SPECIAL
 
 #endif