OpenSolaris 2009.6 updated to Build 134 is the current target platform of the project hosted here; it delivers KDE 4.4.3 in the form of specfiles which can be used to build IPS packages and an IPS repository as well.
The entire software stack, from stdcxx (scheduled to be integrated in build nv122) through Boost to Qt to KDE4 itself, is included here. That means one collection of specfiles and one collection of IPS packages. As things are integrated into newer builds the number of packages that need to be build from this repository shrinks.
There are several Mercurial repositories of note for this project; we clone off a new one for each KDE release and leave the old one behind with all of the supporting software stack. Since each one carries the whole history of development, you can go back to significant milestones.
KDE SC 4.5.0 is the working repository, to deliver KDE 4.5.0 (scheduled for late 2010) packages.
KDE SC 4.4.3 is the stable repository, delivered for the KDE 4.4 series, currently at KDE SC 4.4.3.
Note that all of these repositories are publicly writable if you check out over HTTPS. That means that contributing is as easy as hg clone ; hg commit ; hg push, but we strongly suggest you join up in #kde4-solaris on Freenode IRC (there is also #kde-solaris, which is for the Solaris10-oriented project).
This is the tarball and patch hosting site for an offshoot of the KDE4-Solaris project (a project we believe is defunct).
There are source and patch tarballs that were useful for the KDE4-Solaris project when it was aimed at Solaris 10; the sources are for a variety of third-party software, and the patches apply to those pristine sources. There are (SysV-style) packages here. There are source tarballs here. You may be able to use the deprecated Solaris10 specfile repository to build these packages, or unpack the tarballs to ~/packages/PKGS and run this:
/opt/dtbld/bin/pkgtool --without-nas \ --download --autodeps \ --specdirs=`pwd`/include:`pwd` \ --patchdirs=`pwd`/patches install-pkgs KDEconsolidation.spec