GCC build failure, HEAD@191413 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 191413 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 191412.

Log information for changes since the last build:
------------------------------------------------------------------------
r191413 | fw | 2012-09-18 01:34:05 -0700 (Tue, 18 Sep 2012) | 13 lines
Changed paths:
   M /trunk/include/ChangeLog
   M /trunk/include/objalloc.h
   M /trunk/libiberty/ChangeLog
   M /trunk/libiberty/objalloc.c

PR other/54411: integer overflow in objalloc_alloc

2012-09-18  Florian Weimer  <fweimer@redhat.com>

	PR other/54411
	* objalloc.h (objalloc_alloc): Do not use fast path on wraparound.

2012-09-18  Florian Weimer  <fweimer@redhat.com>

	PR other/54411
	* objalloc.c (_objalloc_alloc): Add overflow check covering
	alignment and CHUNK_HEADER_SIZE addition.

------------------------------------------------------------------------

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

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checking whether NLS is requested... yes
checking for catalogs to be installed...  be ca da de el es fi fr id ja nl ru sr sv tr uk vi zh_CN zh_TW
checking for uchar... 
checking for ld used by GCC... ld
checking if the linker (ld) is GNU ld... yes
checking for shared library run path origin... done
checking for iconv... yes
checking for iconv declaration... install-shextern size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
configure: updating cache ./config.cache
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
config.status: executing depdir commands
mkdir -p -- .deps
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.)