Dan Sully <[EMAIL PROTECTED]> writes:
>* Nick Ing-Simmons <[EMAIL PROTECTED]> shaped the electrons to say...
>
>> I have seen weird fails like this when varying large file support
>> and 64/32 bit IV Configure options.
>>
>> What happens is that 'offset' (your variable) is wrong size for Off_t
>> and PerlIO_seek mis-interprets what it gets in its incoming args.
>>
>> You seem to have a small-file 32-bit perl (from -V output below).
>
>That is correct. And yes, the 'offset' is really a 'ogg_int64_t'. Although
>it's certainly not a 64bit value.
'ogg' ??
How big is it.
>I've tried casting it to a Off_t to no effect.
Hmm, perhaps Off_t itself is off.
Did you pass same -D flags to your compile as perl build?
For 32-bit build perl uses off_t as Off_t - which is all very well
but Linux at least varies size of off_t based
on -D options of _your_ compile.
So if your command line or one of headers included by your XS code
defines (say) __USE_FILE_OFFSET64 things get confused.
>
>Suggestions here?
Add some diagnostics to XS code e.g.
warn("Passing offset size=%d Off_t=%d",sizeof(offset),sizeof(Off_t));
Can I/we see:
A. Your declaration of "offset"
B. Typedef(s) of types involved from any system/library .h files?
C. CPP-ed code of call to PerlIO_seek().
You can get (C) by
make Foo.i
where you have a Foo.xs
>This is something that needs to really work on at the very
>least Linux/*BSD, Win32 & OSX.
>
>thanks.
>
>-D
