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Couple of new issues in mainline

Hi all, hi Benjamin,

in mainline we have a couple of new (unrelated) issues.

The first one is a warning regression, due to a warning recently added to the C++ front:

In file included from ../../../../trunk/libstdc++-v3/src/
/home/paolo/Gcc/svn-dirs/trunk-build/i686-pc-linux-gnu/libstdc++-v3/include/ext/mt_allocator.h:155: warning
: type qualifiers ignored on function return type

I think that, for various reasons (the function is not exported + the type qualifier is indeed ignored), it's safe to simply remove the const qualifier, as in the below, which I'm finishing testing and mean to apply later today.

The other one seems more tricky: between 2006-11-28 and 2006-11-29, check-abi started failing on gnu-linux systems because of this:

2 incompatible symbols
std::ctype<char>::widen(char const*, char const*, char*) const
version status: incompatible
type: function
status: added

1 _ZNKSt5ctypeIcE5widenEc std::ctype<char>::widen(char) const version status: incompatible GLIBCXX_3.4 type: function status: added

Essentially, we are now exporting @GLIBCXX_3.4 two additional symbols. Before starting on the tedious work of splitting out the gnu.ver entry:



   # Names inside the 'extern' block are demangled names.
   extern "C++"


which ultimately makes this kind of problem possible, I'm wondering whether something went slightly, unexpectedly, wrong with Benjamin's doxygen changes around the same time, or, more generally, whether we should tackle the problem in another way... Thanks in advance for any feedback!


2006-12-01  Paolo Carlini  <>

	* include/ext/mt_allocator.h (__pool_base::_M_get_align): Remove
	redundant const qualifier on the return type.
Index: include/ext/mt_allocator.h
--- include/ext/mt_allocator.h	(revision 119401)
+++ include/ext/mt_allocator.h	(working copy)
@@ -151,7 +151,7 @@
     _M_get_binmap(size_t __bytes)
     { return _M_binmap[__bytes]; }
-    const size_t
+    size_t
     { return _M_options._M_align; }

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