[cmake-developers] set(CACHE) and the local scope

[Nagger]

Am 10.12.2015 um 21:26 schrieb Brad King:
> Alternatively the option() or set(CACHE) commands could also set a 
> local variable to the same value as the cache entry. 

I would vote for that.
Maybe optional arguments to set(CACHE) could be introduced to switch the 
behavior.
Like set(... CACHED ... [UNSET_LOCAL] [OVERWRITE_LOCAL] [KEEP_LOCAL]).

What about locals in parent scopes, overwrite all of them?


Bug https://public.kitware.com/Bug/view.php?id=15448 is kind of related, 
and also shows some weird effects of the current implementation.


Marc