[Development] [cmake-developers] Installing Qt5Config.cmake from the Qt repo?

[Stephen Kelly]

On Friday, October 28, 2011 07:58:25 Clinton Stimpson wrote:
> On Friday, October 28, 2011 06:21:23 am Stephen Kelly wrote:
> > On Friday, October 28, 2011 13:56:20 Thiago Macieira wrote:
> > > On Friday, 28 de October de 2011 13:13:20 Stephen Kelly wrote:
> > > > * If you want to be easily found for others to depend on, you
> > > > write a
> > > > 
> > > >     <Package>Config.cmake file and install it to a location
> > > >     CMake
> > > >     will use>
> > > > 
> > > > to   find things like that. I assume this is similar to how
> > > > pkgconfig
> > > > works, but I have never used pkgconfig.
> > > 
> > > Just like pkgconfig, I'd recommend that we make it one file per
> > > library, not one global Qt5Config.cmake.
> > 
> > What I want to investigate (I haven't yet, but I'm confident it will
> > work) is if we can have both. We could have Qt5Core.cmake, Qt5Gui.cmake
> > etc, and Qt5Config would be an aggregate which include()s the other
> > configs based on the FIND_COMPONENTS.
> > 
> > find_package(Qt5 COMPONENTS QtCore)
> > or
> > find_package(Qt5 COMPONENTS QtGui)
> > 
> > for example.
> > 
> > > Alternatively, let's be very clear: it's Qt5EssentialsConfig.cmake
> > > and it includes NO other Qt addon. For those addons, they need to
> > > provide the Config files themselves.
> > 
> > Can you remind me where to find out what Qt5Essentials is or where I can
> > find out? Searching in http://wiki.qt-project.org/ isn't throwing up
> > anything. Is it roughly the contents of qtbase.git? Or does it include
> > qtdeclarative.git too?
> > 
> > Details like what would be included in Qt5Config could be discussed once
> > there's some prototyping happening. I don't really feel strongly about
> > it
> > as long as it's roughly equivalent to what was made available by
> > FindQt4.cmake.
> > 
> > I'll wait a bit for other objections before prototyping though anyway.
> > Then we can start looking at the real details.
> > 
> > Thanks,
> 
> Absolutely no objections from me.  I'm glad to see this happening, and am
> glad to see the new open governance in Qt.
> 
> Thank you.

Cool, you're welcome. I've pushed my work in progress now to gitorious and 
will send an email about it shortly. 

> 
> Lately, there has been more work in FindQt4.cmake to make it more complete.
> For example, there has been recent support for building with static plugins
> and easy deployment with cpack.
> 
> Have you thought about taking it that far?

Yes, that is in scope for the CMake files in Qt I think, but I haven't worked 
on it yet.

> 
> If you'd like, I can offer some review or input based on my experience
> maintaining FindQt4.cmake.

Thanks, I'll certainly get in touch when it's getting closer to ready. In the 
mean-time you can look at what I've done so far in the link in my next email.

Thanks,

-- 
Stephen Kelly <stephen at kdab.com> | Software Engineer
KDAB (Deutschland) GmbH & Co.KG, a KDAB Group Company
www.kdab.com || Germany +49-30-521325470 || Sweden (HQ) +46-563-540090
KDAB - Qt Experts - Platform-Independent Software Solutions
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