GCC build failure, HEAD@166944 on native

[regress]

With your recent patch, GCC HEAD revision 166944 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 166943.

Log information for changes since the last build:
------------------------------------------------------------------------
r166944 | jsm28 | 2010-11-19 05:30:38 -0800 (Fri, 19 Nov 2010) | 25 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/c-family/ChangeLog
   M /trunk/gcc/c-family/c-opts.c
   M /trunk/gcc/common.opt
   M /trunk/gcc/dwarf2out.c
   M /trunk/gcc/flag-types.h
   M /trunk/gcc/flags.h
   M /trunk/gcc/optc-gen.awk
   M /trunk/gcc/opth-gen.awk
   M /trunk/gcc/opts.c
   M /trunk/gcc/toplev.c
   M /trunk/gcc/toplev.h

	* common.opt (debug_struct_ordinary, debug_struct_generic): New
	Variable entries.
	* dwarf2out.c (matches_main_base, dump_struct_debug, DUMP_GSTRUCT,
	should_emit_struct_debug): Move from opts.c.
	* flag-types.h (enum debug_struct_file): Move from opts.c.
	* flags.h (should_emit_struct_debug): Remove.
	(base_of_path): Declare.
	(set_struct_debug_option): Add gcc_options parameter.
	* optc-gen.awk, opth-gen.awk: Handle array variables.
	* opts.c (enum debug_struct_file, debug_struct_ordinary,
	debug_struct_generic): Remove.
	(set_struct_debug_option): Add gcc_options parameter.
	(base_of_path): Remove static.
	(main_input_basename, main_input_baselength, matches_main_base,
	dump_struct_debug, DUMP_GSTRUCT, should_emit_struct_debug):
	Remove.
	* toplev.c (main_input_basename, main_input_baselength): Define
	here.
	* toplev.h (main_input_basename, main_input_baselength): Declare
	here.

c-family:
	* c-opts.c (c_common_handle_option): Update calls to
	set_struct_debug_option.

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

For more information, see <http://gcc.gnu.org/regtest/HEAD/>.

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makeinfo --split-size=5000000 --split-size=5000000 --split-size=5000000  -I /Users/regress/tbox/svn-gcc/libgomp/../gcc/doc/include -I /Users/regress/tbox/svn-gcc/libgomp -o libgomp.info /Users/regress/tbox/svn-gcc/libgomp/libgomp.texi
/bin/sh ./libtool --tag=CC   --mode=compile /Users/regress/tbox/native/build/./gcc/xgcc -B/Users/regress/tbox/native/build/./gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include    -DHAVE_CONFIG_H -I. -I/Users/regress/tbox/svn-gcc/libgomp  -I/Users/regress/tbox/svn-gcc/libgomp/config/bsd -I/Users/regress/tbox/svn-gcc/libgomp/config/posix -I/Users/regress/tbox/svn-gcc/libgomp  -Wall -Werror -Wc,-pthread -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c -o alloc.lo /Users/regress/tbox/svn-gcc/libgomp/alloc.c
/bin/sh ./libtool --tag=CC   --mode=compile /Users/regress/tbox/native/build/./gcc/xgcc -B/Users/regress/tbox/native/build/./gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include    -DHAVE_CONFIG_H -I. -I/Users/regress/tbox/svn-gcc/libgomp  -I/Users/regress/tbox/svn-gcc/libgomp/config/bsd -I/Users/regress/tbox/svn-gcc/libgomp/config/posix -I/Users/regress/tbox/svn-gcc/libgomp  -Wall -Werror -Wc,-pthread -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c -o barrier.lo /Users/regress/tbox/svn-gcc/libgomp/barrier.c
libtool: compile:  /Users/regress/tbox/native/build/./gcc/xgcc -B/Users/regress/tbox/native/build/./gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include -DHAVE_CONFIG_H -I. -I/Users/regress/tbox/svn-gcc/libgomp -I/Users/regress/tbox/svn-gcc/libgomp/config/bsd -I/Users/regress/tbox/svn-gcc/libgomp/config/posix -I/Users/regress/tbox/svn-gcc/libgomp -Wall -pthread -Werror -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c /Users/regress/tbox/svn-gcc/libgomp/alloc.c  -fno-common -DPIC -o .libs/alloc.o
libtool: compile:  /Users/regress/tbox/native/build/./gcc/xgcc -B/Users/regress/tbox/native/build/./gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include -DHAVE_CONFIG_H -I. -I/Users/regress/tbox/svn-gcc/libgomp -I/Users/regress/tbox/svn-gcc/libgomp/config/bsd -I/Users/regress/tbox/svn-gcc/libgomp/config/posix -I/Users/regress/tbox/svn-gcc/libgomp -Wall -pthread -Werror -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c /Users/regress/tbox/svn-gcc/libgomp/barrier.c  -fno-common -DPIC -o .libs/barrier.o
/Users/regress/tbox/svn-gcc/libgomp/barrier.c:41:1: internal compiler error: in decide_is_variable_needed, at varpool.c:338
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[5]: *** [barrier.lo] Error 1
make[5]: *** Waiting for unfinished jobs....
libtool: compile:  /Users/regress/tbox/native/build/./gcc/xgcc -B/Users/regress/tbox/native/build/./gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include -DHAVE_CONFIG_H -I. -I/Users/regress/tbox/svn-gcc/libgomp -I/Users/regress/tbox/svn-gcc/libgomp/config/bsd -I/Users/regress/tbox/svn-gcc/libgomp/config/posix -I/Users/regress/tbox/svn-gcc/libgomp -Wall -pthread -Werror -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c /Users/regress/tbox/svn-gcc/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
mv -f .deps/alloc.Tpo .deps/alloc.Plo
make[4]: *** [all-recursive] Error 1
make[3]: *** [all] Error 2
make[2]: *** [all-stage1-target-libgomp] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [bootstrap] Error 2
+ '[' -s .bad_compare ']'
+ exit 1
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-- 
Geoffrey Keating <geoffk@apple.com> 
(via an automated GCC regression-testing script.)