[Bug bootstrap/20166] New: Bootstrap failure due to lack of fixinclude of pthread problem

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The fix to PR19333 uncovered a problem in the Debian (only?) shipped pthread.h
file which breaks bootstrapping on this platform:

./xgcc -B./ -B/home/rguenth/x86_64/gcc4.0-230205/x86_64-unknown-linux-gnu/bin/
-isystem /home/rguenth/x86_64/gcc4.0-230205/x86_64-unknown-linux-gnu/include
-isystem /home/rguenth/x86_64/gcc4.0-230205/x86_64-unknown-linux-gnu/sys-include
-L/tmp/gcc-obj/gcc/../ld -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED 
-I. -I. -I/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc
-I/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/.
-I/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/../include
-I/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/../libcpp/include 
-fvisibility=hidden -DHIDE_EXPORTS -fexceptions -c
/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/unwind-dw2-fde-glibc.c -o
libgcc/./unwind-dw2-fde-glibc.o
In file included from /net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/gthr-posix.h:43,
                 from ./gthr-default.h:1,
                 from /net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/gthr.h:114,
                 from /net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/unwind-dw2.c:42:
/usr/include/pthread.h:655: error: array type has incomplete element type
In file included from /net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/gthr-posix.h:43,
                 from ./gthr-default.h:1,
                 from /net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/gthr.h:114,
                 from
/net/alwazn/home/rguenth/src/gcc/gcc4.0/gcc/unwind-dw2-fde-glibc.c:50:
/usr/include/pthread.h:655: error: array type has incomplete element type
make[3]: *** [libgcc/./unwind-dw2-fde-glibc.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [libgcc/./unwind-dw2.o] Error 1

where the code in pthread.h:655 is really invalid:


/* Function used in the macros.  */
struct __jmp_buf_tag;
extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROW;

because __jmp_buf_tag is incomplete (and is defined in setjmp.h).

-- 
           Summary: Bootstrap failure due to lack of fixinclude of pthread
                    problem
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20166