[Bug c++/13693] New: build failure in mipsisa64-elf

["echristo at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Building mipsisa64-elf in tree-ssa failed building libstdc++-v3. stevenb reduced
the original testcase to this which fails when:

./cc1plus foo.ii

namespace std{  template<class _CharT>    struct char_traits;}namespace std{ 
template<typename _CharT, typename _Traits = char_traits<_CharT> >    class
basic_istream;} namespace std{  class ios_base  {  protected:    virtual
~ios_base();  };}namespace std{  template<typename _CharT, typename _Traits>   
class basic_ios : public ios_base    {    };}  namespace std{  template<typename
_CharT, typename _Traits>    class basic_istream : virtual public
basic_ios<_CharT, _Traits>    {    };}namespace std{  class istrstream : public
basic_istream<char>  {  public:    virtual ~istrstream();  };}namespace std{ 
istrstream::~istrstream() { }}

-- 
           Summary: build failure in mipsisa64-elf
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: echristo at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: mipsisa64-unknown-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13693