[Boost-users] Re: boost::signals + pthreads = seg fault on Linux

From: Russell Hind (rhind_at_[hidden])
Date: 2004-01-08 13:00:08

Uwe Sander wrote:

> Hi,
> 
> I have a problem with boost::signals when I try to use them in multi threaded 
> projects. I have tried gcc 3.2.3 and gcc 3.3.2, on two different Linux boxes, 
> with the same result. The following test program works fine w/o threads and 
> crashes after the 17th call to connect if I add -pthread to the compile 
> command:
> 

The first pitfall I hit using signals in a multi-threaded environment is 
that the signals lib by default (on win32 anyway) builds a single 
threaded library, NOT multi-threaded.  You have to explicitly force a 
multi-threaded build for it using

<threading>multi

as a BUILD option of bjam.

HTH

Russell