[Bug libstdc++/46359] New: [4.6 Regression] symbol missing from 4.6 libstdc++

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46359

           Summary: [4.6 Regression] symbol missing from 4.6 libstdc++
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rguenth@gcc.gnu.org


When dynamically linking against current trunk libstdc++ on ppc[64]-linux
or s390x-linux a ppl library linked against gcc-4.5 branch libstdc++ I get

/usr/lib/libstdc++.so.6: undefined reference to `std::ostreambuf_iterator<char, 
std::char_traits<char> > std::num_put<char, std::ostreambuf_iterator<char,
std::
char_traits<char> > >::_M_insert_float<long
double>(std::ostreambuf_iterator<cha
r, std::char_traits<char> >, std::ios_base&, char, char, long double) const'
collect2: ld returned 1 exit status
make[3]: *** [lto1] Error 1

when linking lto1 (or cc1 or whatever).