GCC build failure, HEAD@157310 on native

[regress]

With your recent patch, GCC HEAD revision 157310 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 157305.

Log information for changes since the last build:
------------------------------------------------------------------------
r157310 | jvdelisle | 2010-03-09 06:41:17 -0800 (Tue, 09 Mar 2010) | 11 lines
Changed paths:
   M /trunk/libgfortran/ChangeLog
   M /trunk/libgfortran/io/io.h
   M /trunk/libgfortran/io/read.c
   M /trunk/libgfortran/io/transfer.c

2010-03-09  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/43265
	* io/read.c: Include fbuf.h and unix.h to enable lower level I/O for
	read_x. (read_x): Replace the use of read_sf with equivalent lower level
	I/O, eliminating unneeded code and handling EOF and EOR conditions.
	* io/io.h: Revise prototype for read_sf.
	* io/transfer.c (read_sf): Delete no_error parameter and all uses of it.
	(read_block_form): Likewise.
	(next_record_r): Delete wrong code call to hit_eof.

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

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

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/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    -g -O2 -m64 -O2  -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -Wa,-force_cpusubtype_ALL -pipe -mmacosx-version-min=10.4 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I. -I../../.././gcc -I/Users/regress/tbox/svn-gcc/libgcc -I/Users/regress/tbox/svn-gcc/libgcc/. -I/Users/regress/tbox/svn-gcc/libgcc/../gcc -I/Users/regress/tbox/svn-gcc/libgcc/../include  -DHAVE_CC_TLS -o _floatdidf.o -MT _floatdidf.o -MD -MP -MF _floatdidf.dep -DL_floatdidf -c /Users/regress/tbox/svn-gcc/libgcc/../gcc/libgcc2.c \
	  -fvisibility=hidden -DHIDE_EXPORTS
/Users/regress/tbox/svn-gcc/libgcc/../gcc/libgcc2.c:1526:1: internal compiler error: Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
{standard input}:0:End-of-File not at end of a line
{standard input}:416:End-of-File not at end of a line
{standard input}:unknown:Partial line at end of file ignored
make[5]: *** [_floatdisf.o] Error 1
make[5]: *** Waiting for unfinished jobs....
/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    -g -O2 -O2  -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -Wa,-force_cpusubtype_ALL -pipe -mmacosx-version-min=10.4 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I. -I../.././gcc -I/Users/regress/tbox/svn-gcc/libgcc -I/Users/regress/tbox/svn-gcc/libgcc/. -I/Users/regress/tbox/svn-gcc/libgcc/../gcc -I/Users/regress/tbox/svn-gcc/libgcc/../include  -DHAVE_CC_TLS -o _powisf2_s.o -MT _powisf2_s.o -MD -MP -MF _powisf2_s.dep -DSHARED -DL_powisf2 -c /Users/regress/tbox/svn-gcc/libgcc/../gcc/libgcc2.c
make[4]: *** [multi-do] Error 1
make[3]: *** [all-multi] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [all-stage1-target-libgcc] 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.)