xenon wrote:By the way, is there a way to use those xdelta packages in Portage?
I tried, but was unsuccessful.
It seems the xdelta is against the tar file, not the tar.bz2 file.
So first, you have to unbzip2 the kdelibs-4.1.1.tar.bz2 file, apply the xdelta patch (I was successful to this point), and then re-bzip2 the product kdelibs-4.1.2.tar file.
Whenever I've used xdelta in the past, it's had checksums to insure the product was correct, and I was able to apply the xdelta patch without error.
But when I re-bzip2-ed the resulting tar file, my sha1 and sha256 sums did not match the values in the Manifest. Since there are a few tuning factors for bzip2, I guess you have to use exactly the same tuning factors to get the same checksum result.