[Bug libstdc++/12189] New: abi_check fails to build

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

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12189

           Summary: abi_check fails to build
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: aj at gcc dot gnu dot org
        ReportedBy: drow at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i386-pc-linux-gnu
  GCC host triplet: mipsel-unknown-linux-gnu
GCC target triplet: mipsel-unknown-linux-gnu

Abi_check used to be disabled when build != host or with-cross-host.  It was
re-enabled, but it doesn't seem to work for --with-cross-host; at that point
CXX has to be a _C_ compiler, and nothing links in libstdc++.  If CXX is a C++
compiler it will try to link to the system libstdc++ instead of the just-built
one, anyway.

How is this supposed to work?

Regression from 3.3 to 3.3.1.