Re: [Boost-users] regex __sync_fetch_and_add_4 issue when compiling to 32 bit Linux

Subject: Re: [Boost-users] regex __sync_fetch_and_add_4 issue when compiling to 32 bit Linux
From: Ákos Maróy (akos_at_[hidden])
Date: 2011-01-20 12:10:32

Bryce,

> Which gcc version? __sync_fetch_and_add_4 is a gcc intrinsic, and it's never
> called directly by Boost code (__sync_fetch_and_add is call, gcc expands that
> to a macro which selects the right version of __sync_fetch_and_add to invoke).
> 
> This sounds like a problem with your toolchain, not with Boost. You might be
> neglecting a flag to gcc to properly target 32bit.
>  
> I could be mistaken about this - the only place in boost that
> __sync_fetch_and_add is called is in smart_ptr and interprocess, so I'm
> assuming that your problem is in one of those calls.

actually, with boost 1.44.0, a simple code sample that only referst so
smart_ptr.hpp compiles & links fine. but a sample that refers to
boost::regex, it will fail with the same __sync_fetch_and_add_4 issue.
so, it seems in boost 1.44.0, this is indeed a regex related problem.

Akos