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[Bug target/40959] build fails - No rule to make target `/usr/ports/lang/gcc43/work/build/ia64-portbld-freebsd8.0/libgcc/crtfastmath.o', needed by `T_TARGET'. Stop.



------- Comment #17 from gerald at pfeifer dot com  2010-09-07 23:19 -------
(In reply to comment #9)
> unwind-ia64_s.o(.text+0x30b2): In function `uw_frame_state_for':
> ../.././../gcc-4.5-20091112/libgcc/../gcc/config/ia64/unwind-ia64.c:1788:
> undefined reference to `_Unwind_FindTableEntry'
> unwind-ia64_s.o(.text+0x7632): In function `_Unwind_FindEnclosingFunction':
> ../.././../gcc-4.5-20091112/libgcc/../gcc/config/ia64/unwind-ia64.c:1745:
> undefined reference to `_Unwind_FindTableEntry'
> /usr/bin/ld: ./libgcc_s.so.1.tmp: hidden symbol `_Unwind_FindTableEntry' isn't
> defined
> collect2: ld returned 1 exit status
> gmake[3]: *** [libgcc_s.so] Error 1
> gmake[3]: Leaving directory
> `/usr/ports/lang/gcc45/work/build/ia64-portbld-freebsd9.0/libgcc'
> gmake[2]: *** [all-stage1-target-libgcc] Error 2

After making the change to libgcc/config.host that is also described in
comment #5 I get the same.

libc indeed does feature  _Unwind_FindTableEntry() as I can easily verify
with the following program:

  void _Unwind_FindTableEntry();
  int main() { _Unwind_FindTableEntry(); }

Just, why do we then get this link failure?  Adding -v I see that 
/lib/libc.so.7 is explicitly part of the collect2 invocation.


-- 

gerald at pfeifer dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-09-07 23:19:36
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40959


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