How about IN_RANGE and/or IN_SET options?
Where IN_RANGE takes two version numbers (low and high) and does the
equivalent of:
if ( (NOT ver VERSION_LESS low) AND (ver VERSION_LESS high) )
Or possibly even IN_RANGES with multiple ranges...
And IN_SET takes a list of explicit version numbers and looks for
exact matches among multiple choices...?
It's all pie in the sky until you reach up and pull one down. ;-)
D
On Fri, Oct 3, 2014 at 3:35 AM, Rolf Eike Beer <e...@sf-mail.de> wrote:
> find_package(foo 2.0 EXACT) means EXACT, i.e. only "2.0" is allowed. In most
> cases this behavior is not the one that one would expect or need. Most people
> would instead allow any 2.0.x version to match. This sort of selection is
> currently impossible without additional effort in every Find*.cmake that is
> used.
>
> I came over this when I tried converting FindLua5[01].cmake to use
> FindLua.cmake, but I can't do "find_package(Lua 5.0 EXACT)" in there because
> e.g. 5.0.1 would not be accepted then, and I neither can do "find_package(Lua
> 5.0)" because that may return e.g. 5.2 instead.
>
> Since we can't change this because of the usual backward compatibility
> concerns I think we should introduce a new version mode, e.g. EXACT_OR_MINOR
> (or any other naming you find more appropiate).
>
> In case this is aggreed on I would try to create a patch ASAP to be able to
> still land it in 3.1.
>
> Opinions?
>
> Eike
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