[Development] Adding support for version number comparisons

[Thiago Macieira]

Em ter 13 maio 2014, às 17:47:59, Oswald Buddenhagen escreveu:
> On Tue, May 13, 2014 at 07:43:18AM -0700, Thiago Macieira wrote:
> > Em ter 13 maio 2014, às 11:58:15, Oswald Buddenhagen escreveu:
> > > what is the added value of hard-coding arbitrary policies (and
> > > thereby restricting possible use cases) instead of providing a
> > > minimalistic solution (or two, one for semver and one for strings) and
> > > putting a few recipes for common schemes into the documentation?
> > 
> > What's the point of providing a minimalistic solution for cookies which
> > just respects the original Netscape spec and the RFC?
> > 
> > Both have the same answer: it depends on how well it deals with the real
> > world.
> 
> the analogy is entirely bogus. the thresholds for usefulness and the
> user's ability to manipulate the input into something the qt code can
> work with are entirely different.

We disagree.

> > > policy in the classes was always considered a very un-qt thing. the one
> > > counterexample i can come up with is qlibraryinfo, and it is in fact a
> > > constant pita.
> > 
> > QLibraryInfo is not about policy, either. It's just reporting what Qt's
> > settings are.
> 
> it's reporting our installation directory layout policy. unfortunately,
> that policy (which is basically FHS) doesn't match the ideal layout of
> mac os bundles at all.
> also, the implementation sucks. but that's a different discussion.

QLibraryInfo is *reporting* what was configured. The policy / semantic decision 
was made at configure time. If we change the way we lay out our files by 
changing configure, QLibraryInfo will report it.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center