Re: Problems on AMD64 with Glib module

[Jacek Konieczny <jajcus bnet pl>]

On Fri, Jan 09, 2004 at 12:51:58PM -0500, muppet wrote:
> from your error message, it sounds like the version of perl you are using is
> trying to interpret the file descriptor as a reference.  is it really a
> reference, or is it an integer?

It seems it is undef.

> try uncommenting the Data::Dumper print on line 76 of t/9.t and running the
> script directly (e.g., perl -I blib/lib -I blib/arch t/9.t).  on my system, it
> prints:
>
>   $VAR1 = [
>             6,
>             bless( do{\(my $o = 1)}, 'Glib::IOCondition' )
>           ];

Here it is:

$VAR1 = [
          undef,
          bless( do{\(my $o = 1)}, 'Glib::IOCondition' )
        ];

> that test  exercises the log message stuff, and therefore counts warnings, and
> you're probably getting extra ones.  if you would be so kind, please run that
> test directly (as above) and post its output.

1..14
ok 1
ok 2
ok 3 # running in eval
ok 4 # idle one-shot
ok 5 # another idle, but this one dies
ok 6 # in __DIE__ handler
ok 7 #
ok 8
ok 9 # running in eval
ok 10 # dying with 'waugh'
ok 11 # killing loop from exception handler
ok 12
ok 13 # running in eval
$VAR1 = [
          undef,
          bless( do{\(my $o = 1)}, 'Glib::IOCondition' )
        ];
Use of uninitialized value in ref-to-glob cast at t/9.t line 80, <IN>
chunk 1.
ok 14 # eof, dying with 'done\n'

> > Compiler doesn't warn me any more, but the test still doesn't pass, so
> > probably the problem is somhere else. Any hints?
>
> there are probably bits of code which assume pointer/int samesizeness but
> which do not trigger compiler warnings.  are you using the "-Wall -W" flags to
> GCC?  (GCC will warn about nearly every xsub having an unused parameter named
> "cv", but that's unavoidable.)

No -Wall here. I think at least part of those warnings could be
generated only on 64-bit platforms ("converting pointer to incompatible
integer" or something like that).

> > My warning-killer patch is attached.
>
> thanks.  doubtless, you will find similar problems in all of the Gtk2-Perl
> modules, once you get past Glib.

This sentence doesn't make me happy... ;-)

Greets,
        Jacek