Re: configure speedup proposal: add --assume-c99 and --assume-posix2008 flags

[Rhys Ulerich]

> Wouldn't it be time to
> think about moving autoconf to a more parallel logic, where N tests
> could run in parallel in sub-processes?

I only find the configure process to be frustratingly slow when run
against compilers with license keys or with checks accessing network
storage.  Running those in parallel would do nothing but block on the
license servers and beat up already sluggish file servers.

- Rhys