Re: [boost] Problematic inclusion of "pthread.h".

Markus, I believe what you're seeing is the problem that prompted the GCC developers to unconditionally define _REENTRANT even when -pthread is not given (and which breaks Boost for GCC 3.4), see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11953

That's what I thought, but http://tinyurl.com/3lyr8 suggests that _REENTRANT *is* defined, even without -pthread (unless this is an artifact of including <iostream>). Confused yours, John.