Building kdelibs

Duncan 1i5t5.duncan at
Fri Jun 17 15:53:29 BST 2011

David Doria posted on Fri, 17 Jun 2011 08:44:54 -0400 as excerpted:

> I am trying to build kdelibs. I ran cmake, and it told me that I needed
> Automoc4 (part of KDE Support). I built automoc, and then it said I
> needed Phonon (also part of KDE Support). Is there a way to build all of
> KDE Support without doing it one package at a time? I see on this page:
> that it says
> they are separate modules and should be bulit separately, but isn't this
> quite an involved process just to build a prerequisite for kdelibs? Can
> you please just let me know if I am going about it correctly?

FWIW, I'm a Gentooer.  Gentoo builds from source using buildscripts 
called ebuilds that list required dependencies and handle optional 
dependencies using what Gentoo calls USE flags.

As a result, I've been able to help a number of people trying to build kde 
manually by simply querying the Gentoo build system for kde's various 
dependencies.  One guy (James Tyrer) in particular runs Linux from 
Scratch, and builds KDE for it as updates come out, updating their KDE 
documentation for others as he does so.  I've been able to help him 
resolve missing dependencies on a number of occasions.

That leaves you with a number of potentially useful resources to choose 
from.  Of course you could switch to Gentoo if you like, and get most of 
the building automated thru the various scripts without losing a whole 
lot since they still expose most of the build-time options as USE flags.  
But even if you're not doing Gentoo, you can either post questions here 
and I can check dependencies, or you could download a Gentoo build tree 
and check them yourself, or simply check their sources on the web.

Alternatively and probably easier to follow as the basics will already 
have been distilled into a reasonably nice set of instructions to follow, 
you can find and follow the LFS kde building instructions as maintained 
by James Tyrer, with the caveat that as every minor version (4.5, 4.6, 
4.7...) comes out, it takes some days/weeks for their build instructions 
to be fully updated.

FWIW, the gentoo/kde project has live builds that they try to keep in 
sync with kde upstream, so most of the updates are already understood 
when an update comes out, it's just a matter of actually transferring 
them from the live build scripts to the specific version scripts.  Given 
that kde makes the new tarballs available to the various distributions 
several days before public release, by public release, the scripts are 
generally already updated in the gentoo/kde project overlay, which I 
follow, and moved to the general kde tree within another week or so after 
final testing... kde sometimes updates one of the tarballs after release 
to the distributions so the final checksums need to be updated, etc.  So 
they move to the general kde tree pretty fast, tho unmasking to arch-
testing can take a bit longer and moving to full stable can take months 
-- they just stabilized 4.6.2, before which the latest gentoo kde stable 
was 4.4.5, IIRC.  But the initial masked-for-testing ebuilds are 
generally in the gentoo/kde overlay before upstream public release, and 
in the main gentoo tree within days of release.

James, the LFS guy, doesn't appear to follow the pre-releases or live-
builds, so he's typically some days to weeks behind Gentoo's move of the 
build-scripts to the general tree.  I believe he tends to finally get the 
4.x.0 instructions up about time kde upstream 4.x.1 comes out a month 
later.  But after the initial minor-release update, the rest in the 
series are far easier as they're much smaller bumps with far fewer 
changes.  So in general, 4.x.1 thru 4.x.5 can continue to use the 4.x.0 
instructions.  It's only with the bump to 4.y.0 that serious changes 
occur, forcing changes to the LFS build instructions that again take a 
month, perhaps six weeks, to work their way thru.

So... if you'd like me to post the gentoo dependency list for kdelibs, 
let me know.  As I said, such things have helped James and occasionally 
others work out dependencies for their builds, occasionally.  Or you can 
look them up yourself, checking the gentoo/kde public sources, but it 
might take a bit of extra digging to figure out the notation they use.

Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

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