GCC build failure, HEAD@191109 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 191109 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 191107.

Log information for changes since the last build:
------------------------------------------------------------------------
r191109 | drepper | 2012-09-09 07:22:10 -0700 (Sun, 09 Sep 2012) | 14 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/config/i386/cpuid.h
   M /trunk/gcc/config/i386/driver-i386.c
   M /trunk/libstdc++-v3/ChangeLog
   M /trunk/libstdc++-v3/src/c++11/random.cc

gcc/
        * config/i386/cpuid.h: Define signature_*_e[bcd]x macros for
        matching results of level 0 calls to __cpuid to processor
        manufacturers.
        * config/i386/driver-i386.c (vendor_signatures): Removed.
        (processor_signatures): Removed.
        (host_detect_local_cpu): Replace uses of now-removed SIG_*
        constants with the new signature_*_ebx constants.

libstdc++-v3/
        * src/c++11/random.cc (random_device::_M_init): Use new macro
        signature_INTEL_ebx to check for Intel processors.


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

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

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/bin/sh ../../libtool --tag CXX --tag disable-shared   --mode=compile /home/regress/tbox/native/build/./gcc/xgcc -shared-libgcc -B/home/regress/tbox/native/build/./gcc -nostdinc++ -L/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src -L/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src/.libs -B/home/regress/tbox/objs/i686-pc-linux-gnu/bin/ -B/home/regress/tbox/objs/i686-pc-linux-gnu/lib/ -isystem /home/regress/tbox/objs/i686-pc-linux-gnu/include -isystem /home/regress/tbox/objs/i686-pc-linux-gnu/sys-include    -I/home/regress/tbox/svn-gcc/libstdc++-v3/../libgcc -I/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu -I/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include -I/home/regress/tbox/svn-gcc/libstdc++-v3/libsupc++  -std=gnu++11 -prefer-pic -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi  -fdiagnostics-show-location=once   -ffunction-sections -fdata-sections  -fr!
 andom-seed=fstream-inst.lo -g -O2 -D_GNU_SOURCE -c -o fstream-inst.lo /home/regress/tbox/svn-gcc/libstdc++-v3/src/c++11/fstream-inst.cc
libtool: compile:  /home/regress/tbox/native/build/./gcc/xgcc -shared-libgcc -B/home/regress/tbox/native/build/./gcc -nostdinc++ -L/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src -L/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src/.libs -B/home/regress/tbox/objs/i686-pc-linux-gnu/bin/ -B/home/regress/tbox/objs/i686-pc-linux-gnu/lib/ -isystem /home/regress/tbox/objs/i686-pc-linux-gnu/include -isystem /home/regress/tbox/objs/i686-pc-linux-gnu/sys-include -I/home/regress/tbox/svn-gcc/libstdc++-v3/../libgcc -I/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu -I/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include -I/home/regress/tbox/svn-gcc/libstdc++-v3/libsupc++ -std=gnu++11 -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -frandom-seed=fstream-inst.lo -g -O2 -D_GNU_SOURCE -c /home/regress/tbox/s!
 vn-gcc/libstdc++-v3/src/c++11/fstream-inst.cc  -fPIC -DPIC -o fstream-inst.o
/tmp/cc3EXPNf.s: Assembler messages:
/tmp/cc3EXPNf.s:44: Error: no such instruction: `rdrand %eax'
make[6]: *** [random.lo] Error 1
make[6]: *** Waiting for unfinished jobs....
make[6]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src/c++11'
make[5]: *** [all-recursive] Error 1
make[5]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/src'
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.)