Hi, I noticed that the ebuild of sys-apps/util-linux includes the patches from the international crypto kernel, which add crypto support to the loop device. I think it is unfortunate that these patches are applied unconditionally, because I for instance prefer loop-aes (http://sourceforge.net/projects/loop-aes/) over the international patches and the two seem to be mutually exclusive. Hence I cannot use ebuild to keep my util-linux up-to-date. Would it be possible to include _both_ patches in the ebuild and the apply either one (or none of them) depending on some USE setting?
Be on the lookout for util-linux-2.11r-r1 (or something like it). It should get into the tree sometimes tomorrow with ability to control whetever the crypto patch get applied with the USE setting. Please try it and report here.
I looked at the new package, but as far as I can tell, the emerge file supports the international kernel patches _only_; hence there is no trivial way for me to bbuild it with loop-aes support, right?
Not automatically no. Check out http://www.gentoo.org/doc/faq.html and the title "I want to perform the ./configure step myself. Can I?".