[Bug bootstrap/43858] New: [4.6 Regression] Bootstrap failure for powerpc-apple-darwin9: cannot compute suffix of object files

["dominiq at lps dot ens dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

Between revisions 158628 and 158636, bootstrapping gcc on powerpc-apple-darwin9
has started to fail. Since revision 158643, it fails with (see
http://gcc.gnu.org/ml/gcc-regression/2010-04/msg00214.html ):

... 
checking for powerpc-apple-darwin9-gcc... /opt/gcc/darwin_buildw/./gcc/xgcc
-B/opt/gcc/darwin_buildw/./gcc/ -B/opt/gcc/gcc4.6w/powerpc-apple-darwin9/bin/
-B/opt/gcc/gcc4.6w/powerpc-apple-darwin9/lib/ -isystem
/opt/gcc/gcc4.6w/powerpc-apple-darwin9/include -isystem
/opt/gcc/gcc4.6w/powerpc-apple-darwin9/sys-include   
checking for suffix of object files... configure: error: in
`/opt/gcc/darwin_buildw/powerpc-apple-darwin9/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
make[2]: *** [configure-stage2-target-libgcc] Error 1

The relevant part of config.log is:

...
configure:3020: /opt/gcc/darwin_buildw/./gcc/xgcc
-B/opt/gcc/darwin_buildw/./gcc/ -B/opt/gcc/gcc4.6w/powerpc-apple-darwin9/bin/
-B/opt/gcc/gcc4.6w/pow
erpc-apple-darwin9/lib/ -isystem /opt/gcc/gcc4.6w/powerpc-apple-darwin9/include
-isystem /opt/gcc/gcc4.6w/powerpc-apple-darwin9/sys-include    -o conf
test -g -O2   conftest.c  >&5
cc1: 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.
configure:3023: $? = 1
configure:3211: checking for suffix of object files
configure:3233: /opt/gcc/darwin_buildw/./gcc/xgcc
-B/opt/gcc/darwin_buildw/./gcc/ -B/opt/gcc/gcc4.6w/powerpc-apple-darwin9/bin/
-B/opt/gcc/gcc4.6w/pow
erpc-apple-darwin9/lib/ -isystem /opt/gcc/gcc4.6w/powerpc-apple-darwin9/include
-isystem /opt/gcc/gcc4.6w/powerpc-apple-darwin9/sys-include    -c -g -
O2  conftest.c >&5
cc1: 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.
configure:3237: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/";
| /* end confdefs.h.  */
|
| int
| main ()| {
|
|   ;
|   return 0;
| }
configure:3251: error: in
`/opt/gcc/darwin_buildw/powerpc-apple-darwin9/libgcc':
configure:3254: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
...

The ICE occurs with 

/opt/gcc/darwin_buildw/gcc/xgcc -B/opt/gcc/darwin_buildw/gcc/ -O1 conftest.c

and conftest.c

 /* confdefs.h */
 #define PACKAGE_NAME "GNU C Runtime Library"
 #define PACKAGE_TARNAME "libgcc"
 #define PACKAGE_VERSION "1.0"
 #define PACKAGE_STRING "GNU C Runtime Library 1.0"
 #define PACKAGE_BUGREPORT ""
 #define PACKAGE_URL "http://www.gnu.org/software/libgcc/";
 /* end confdefs.h.  */

 int
 main ()
 {

   ;
   return 0;
 }


-- 
           Summary: [4.6 Regression] Bootstrap failure for powerpc-apple-
                    darwin9: cannot compute suffix of object files
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr
 GCC build triplet: powerpc-apple-darwin9
  GCC host triplet: powerpc-apple-darwin9
GCC target triplet: powerpc-apple-darwin9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43858