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[strict-aliasing] warning message contains compiler-generated symbols

g++-current generates messages which
1) contains compiler generated symbols
2) refers to gcc internal header (stl_tree.h)

[root@localhost gcc_err]# g++ -Wall -c -O3 test.cpp
test.cpp: In member function 'void
test::bar(std::_List_iterator<KeyPairPtr<int, int> >&)':
test.cpp:14: warning: dereferencing pointer '__x.13' does break
strict-aliasing rules
/usr/local/gcc_current/lib/gcc/i686-pc-linux-gnu/4.4.0/include/c++/bits/stl_tree.h:530:
note: initialized from here
test.cpp:14: warning: dereferencing pointer '__x.13' does break
strict-aliasing rules
/usr/local/gcc_current/lib/gcc/i686-pc-linux-gnu/4.4.0/include/c++/bits/stl_tree.h:530:
note: initialized from here

[root@localhost gcc_err]# g++ -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++ :
(reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion : (reconfigured) ../gcc_current/configure
--prefix=/usr/local/gcc_current --enable-shared --enable-threads=posix
--enable-checking=release --enable-__cxa_atexit
--enable-version-specific-runtime-libs --enable-languages=c,c++
--no-create --no-recursion
Thread model: posix
gcc version 4.4.0 20081210 (experimental) [trunk revision 142645] (GCC)

[root@localhost gcc_err]# uname -a
Linux localhost.localdomain 2.6.26.6-49.fc8 #1 SMP Fri Oct 17 15:59:36
EDT 2008 i686 i686 i386 GNU/Linux

[root@localhost gcc_err]# cat test.cpp
#include <set>
#include <list>

template<class Key, class Info>
class KeyPairPtr
{
public:
    typedef typename std::pair< const Key, Info > Pair;
    Pair *pair_ptr;
};

template<class Key, class Info>
bool operator <( const KeyPairPtr<Key, Info> &left, const
KeyPairPtr<Key, Info> &right ) {
    return left.pair_ptr < right.pair_ptr;
}

typedef KeyPairPtr<int,int> key_val;

class test
{
    test();
    void bar( std::list<key_val>::iterator &ci );

    std::set<key_val> foo;
};

void test::bar( std::list<key_val>::iterator &ci )
{
    test ctx;
    ctx.foo.insert( *ci );
}
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