Re: problem with exiting from a Glib::Thread

[Chris Vine <chris cvine freeserve co uk>]

On Sunday 26 June 2005 07:56, Yair Hershkovitz wrote:
> i'm using mandriva 2005, they suppose to have nptl (there is a
> /usr/include/nptl with headers) but i dont know how to link againts it.
> i also don't know to which threads library glib is linked.
>
> how can i check that?

Glib uses whatever thread library is compiled into glibc if you either 
compiled glib yourself or you are using the version of glib which comes with 
your distribution.  So the issue is really what thread library has been 
compiled into glibc.

From what you say this is almost certainly NPTL, but you can check this by 
doing:

  /lib/libc.so.6 --version

The resulting text will include a line:

  linuxthreads-0.10 by Xavier Leroy

if it uses linuxthreads, or a line:

  NPTL 0.60 by Ulrich Drepper

(or a later version of NPTL) if it uses NPTL.

If it uses NPTL then try running your program with the following environmental 
variable exported:

LD_ASSUME_KERNEL=2.4.19

In Redhat and Suse at least this forces NPTL to adopt Linuxthreads behaviour 
(that is, it prevents forced stack unwinding) and it probably does the same 
with your distribution, so if Glib::Thread::Exit works correctly with this 
variable set and exported then you have a NPTL issue.

Chris