[Zope] gotcha for zope on solaris2.7 - make sure you use pthreads.

If you're running a Zope on Solaris2.7 and you're seeing strange behaviour, make sure that your python executable's been built and linked with pthreads, not solaris threads. I've just had a horrible time figuring out why I was seeing very strange behaviour on Solaris until I noticed this. ldd `which python` should show /usr/lib/libpthread.so, NOT /usr/lib/libthread.so. Anthony, bitter and twisted at Sun.