Bug#554574: libstdc++6: apt segfaults on hppa

["John David Anglin" <dave@hiauly1.hia.nrc.ca>]

> test results for 4.4.2-1:
>    http://gcc.gnu.org/ml/gcc-testresults/2009-10/msg01919.html
> for 4.4.2-2:
>    http://gcc.gnu.org/ml/gcc-testresults/2009-11/msg00351.html
> 
> there are some differences, which are not seen in Dave's build:
>    http://gcc.gnu.org/ml/gcc-testresults/2009-11/msg00047.html

For a release, I wouldn't use cloog/ppl.  It seems to cause some
loop optimization bugs.  There's also an unresolved issue with
pch on the 4.4 branch.  I usually configure with --disable-libstdcxx-pch
on the 4.4 branch.  The problem seems to be fixed on head.

> there are some parisc scpecific changes:
> 
> 2009-10-23  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
>          Backport from mainline:
>          2009-08-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
>          * pa.md (reload_inhi, reload_outhi, reload_inqi, reload_outqi): New
>          patterns.
>          * pa.c (emit_move_sequence): Check if address of operand1 is valid
>          for mode mode of operand0 when doing secondary reload for SAR.
> 
> 2009-10-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
>          Backport from mainline:
>          2009-10-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
>          PR target/41702
>          * pa.md (casesi): Use sign extended index in call to
>          gen_casesi64p.
>          (casesi64p): Update pattern to reflect above.

I doubt either of these is the problem.  The latter is specific to
hppa64.  The former is to fix an ICE compiling recent linux kernels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)