GCC build failure, HEAD@190805 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 190805 had problems on:
native: build (about the same as the previous build)
Attached is build output for those targets.
The previous build was of revision 190800.

Log information for changes since the last build:
------------------------------------------------------------------------
r190805 | bkoz | 2012-08-30 08:58:52 -0700 (Thu, 30 Aug 2012) | 3 lines
Changed paths:
   M /trunk/libstdc++-v3/ChangeLog
   M /trunk/libstdc++-v3/testsuite/util/testsuite_abi.cc

2012-08-30  Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.18.
------------------------------------------------------------------------

For more information, see <http://glutton.geoffk.org/HEAD/>.

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                 from /home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/bits/stl_algo.h:67,
                 from /home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/algorithm:63,
                 from /home/regress/tbox/svn-gcc/libstdc++-v3/include/precompiled/stdc++.h:65:
/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/bits/random.h: In constructor 'std::random_device::random_device(const string&)':
/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/bits/random.h:1590:36: error: returning a value from a constructor
     { return _M_init_pretr1(__token); }
                                    ^
make[5]: *** [i686-pc-linux-gnu/bits/stdc++.h.gch/O2ggnu++0x.gch] Error 1
make[5]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3'
make[2]: *** [all-stage1-target-libstdc++-v3] Error 2
make[2]: Leaving directory `/home/regress/tbox/native/build'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/home/regress/tbox/native/build'
make: *** [bootstrap] Error 2
+ '[' -s .bad_compare ']'
+ exit 1
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-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)