pbulk-0.26:
Add first pile of patches for cross-compiling support.
This still depends on the packages being pre-installed to
the normal prefix, but otherwise works. Cross-compiling
needs pkg_install-20080126. While here, simplify configuration
and allow using one pkg_install installation for everything.
As a side effect remove the pkgdb limitation for NetBSD builds.
Add a message that tells users to check the configuration file
on updates.

(joerg)