NPTL auto detection

[Vincent Béron]

erwin wolff a écrit:
> The solution of this NPTL problem is somehow solved by the guys of
> apache. since 2.0.44 the configure script can autodetect nptl. So if you
> want to implement this feature you can "borrow" it from apache.

Alexandre's goal is not only to detect it at compile-time (I'd think 
that it could be somewhat easy to do that). The trickiest part is to 
have a binary that can run with or without NPTL, with or without 
LD_KERNEL_ASSUME, etc.

Vincent