[CMake] open source project for CMake ports?

[Philip Lowman]

On Thu, Feb 19, 2009 at 3:38 PM, Alexander Neundorf <a.neundorf-work at gmx.net
> wrote:

> On Wednesday 18 February 2009, Philip Lowman wrote:
>  > This is an interesting idea.
> >
> > One thought I had was the potential of new features creeping into the
> CMake
> > module you're downloading that aren't yet available in the CMake version
> > that you're using.  One example of this as of late is the HINTS feature.
> > There are still many people out there using CMake 2.4.x and plenty of
> Find
> > Modules which now support HINTS (which obviously doesn't work in 2.4.x).
> >
> > My point is by pointing your source tree off to some URL you immediately
> > assume that the module located there will ALWAYS work with the current
> > trunk of your software (from now until the end of time) when this may not
> > necessarily be the case.
>
> I agree with that.
> And once you have found out that a cmake module you need exists somewhere,
> you
> can also bundle it with your software. Then you also know what you have and
> can fix it if something breaks.
>
> Beside that, at least starting with cmake 2.6.3 it should be recommended to
> put a cmake_minimum_required(VERSION ... ) in such cmake modules, so they
> will fail with an appropriate error if it's not good enough.
> (with cmake 2.6.0 to 2.6.2 there is an issue with this: if you do this in a
> cmake module, it also sets the cmake policies to this version, and these
> policies are then applied to the including file. With 2.6.3 by default the
> different policies don't "escape" that file) (hope I got that right).


Thanks for sharing that.  I always wondered what might happen if I set
cmake_minimum_required() in a module.  I figured it would be global so never
tried.  Glad to hear this has been fixed.  It should be useful come 2.8 if
there are any really cool new features. ;)


-- 
Philip Lowman
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