Re: pgsql: Suppress some "variable might be clobbered by longjmp" warnings.

Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Tom Lane wrote:
> >> Suppress some "variable might be clobbered by longjmp" warnings.
> >>
> >> Seen with an older gcc version.  I'm not sure these represent any real
> >> risk factor, but still a bit scary.  Anyway we have lots of other
> >> volatile-marked variables in this code, so a couple more won't hurt.
>
> > I assume you saw my comment in basebackup.c:
>
> >      *  Some old compilers, e.g. gcc 2.95.3/x86, think that passing
> >      *  a struct in the same function as a longjump might clobber
> >      *  a variable.  bjm 2011-02-04
> >      *  http://lists.apple.com/archives/xcode-users/2003/Dec//msg00051.html
>
> Curious that you're getting different warnings with that than I get
> with HPPA 2.95.3.

Yes.  I just found the description at the URL interesting, stating the
gcc just gets confused.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +