isolating builds within a module

[Lubos Lunak]

On Thursday 13 of November 2008, Alexander Neundorf wrote:
> On Thursday 13 November 2008, Aaron J. Seigo wrote:
> > On Wednesday 12 November 2008, Alexander Neundorf wrote:
> > > The time is not "wasted"...
> >
> > it absolutely is wasted. i spent 90+% of my build time yesterday waiting
> > for checks on non-libplasma. not one of those checks resulted in any
> > building of any other code that was being checked ..... because they
> > weren't changed!
>
> How should the buildsystem know without checking that ?
> The time is spent to ensure your build is correct.

 Given that it fails to install properly and as such it's not correct, that's 
probably one more reason to call it wasted. Just try 'make' and 'make 
install' in e.g. kdeui with kdecore modified, it will rebuild kdecore, but 
will not install it.

> > is there any way to tell cmake "always build this
> > component with /fast?" when i run cmake for the first time? then it
> > becomes
>
> You mean like a cmake switch to make the fast targets the default ones ?
> This doesn't exist currently.

 It would be nice to have, together with /slow, /full or whatever for doing a 
full check. I can handle the dependencies mostly myself, especially given 
that I have to anyway.

 Also, BTW, if 'make install/fast' is for 'make install', what is the /fast 
variant for 'make'? And please do not tell me it is 'make 
<insert_something_manually_here>/fast'. Since I'm pretty sure I don't see any 
all/fast in kwin's Makefile or elsewhere :(.

-- 
Lubos Lunak
KDE developer
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