Re: cmake versioning issue (was: Re: [hatari-devel] readline ?)

[Thomas Huth <th.huth@xxxxxxxxx>]

Am Sun, 13 Dec 2020 02:07:09 +0200
schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:
[...] 
> > If I run into more issues, I'll update my distro.  But you really
> > ought to change readme.txt, it's wrong.  
> 
> Will do, once I know I know what's needed.
> Minimum required CMake version being
> 2.8 < x <= 3.13 is too vague. :-/

Looking through the CMake changes a little bit, I think the commit that
introduced the new behavior (between Something_FOUND and
SOMETHING_FOUND) was the following one here:

 https://gitlab.kitware.com/cmake/cmake/-/commit/d1a6d15bcd4df3d3e3

That was released with CMake v3.3.

So I think we should either:

a) Bump our minimum required CMake version to 3.3

b) Try to work-around by renaming FindReadline.cmake to
FindREADLINE.cmake etc. and reverting commit 13dc63566ab73541d24e

I tend to option a), since it's less effort, CMake 3.3 has been
released since 5 years already, so it should be well-established
already and since there might be other issues lurking around in those
very old versions of CMake which we are not aware of yet.

Other opinions?

 Thomas