g_io_channel_seek_position() crashes on 64-bit machine but works fine on 32-bit one

[Dmitry Perov <shambricool90 gmail com>]

Hi everyone!
I'm developing a simple application using gtk+2 and use
g_io_channel_seek_position() in it. Earlier I worked under 32-bit Linux and
everything went perfectly fine, but then I switched to a 64-bit OS (the
same Linux distribution, only the architechture has changed).

I compile my code with gcc and use -m32 option both for compiling and
linking. The program builds fine, but it receives a segfault in above
mentioned function. The same code works fine under 32-bit OS. Here's the
output of the program.


> (main_1:17875): GLib-CRITICAL **: g_io_channel_seek_position: assertion
> `(error == NULL) || (*error == NULL)' failed
> (main_1:17875): GLib-WARNING **: g_io_channel_seek_position: unknown seek
> type
> Segmentation fault (core dumped)



 It's also strange that the program doesn't crash on the first warning and
that it complains about seek type when the seek type is G_SEEK_SET. And
*error is NULL on function call.

What am I missing here and what could be the issue?

Thank you in advance,
Dmitry