[PATCH] kdeplasma-addons - only build rss/news plasmoids if rss dataengine is guessed to be available

[Maciej Mrozowski]

On Wednesday 05 of May 2010 08:10:06 Thiago Macieira wrote:
> Em Quarta-feira 5. Maio 2010, às 03.11.42, Maciej Mrozowski escreveu:
> > Ok to commit?
> 
> I'd say no. A runtime dependency could be installed after the code is
> built, so your change is technically wrong.
> 
> Instead of trying to detect kdepimlibs as a proxy to having the engine,
> just add an option to enable/disable the plasmoids you don't want. That
> way, you can fine-tune control what gets built and what doesn't.

I agree, however it causes following problems:
- a bit of CMake variable maintenance burden (many new variables added)
- it's a bit against how it's handled currently - for instance LIBATTICA_FOUND 
already guards ocs dataengine (which has Attica as build dependency) and also 
guards two opendesktop plasmoids (that don't need Attica directly but rely on 
ocs dataengine)
- disabling certain applets should disable their corresponding 
libs/dataengines (like in case of lancelot or rememberthemilk) - so another 
maintenance burden I think everyone would prefer to avoid

Of  course it's fine to do it clean way (like you suggest) but it brings 
enormous future maintenance cost (and I think unnecessary since kdeplasma-
addons is relatively small package and usually it's not even split in 
distributions). It would look like  something along the lines of attachment 
(it's more complex and even doesn't work yet since some inter-CMake-target 
dependencies are not set and should).

That being said my previous patch is lousy but compromise.

-- 
regards
MM
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