Tosatti: Linux 2.4.18-rc4

Unfortunately something really bad (for some non-x86 archs) appeared up,
so here goes rc4.

http://www.kernel.org/pub/linux/kernel/people/marcelo/2.4/testing/patch-2.4.18-rc4.gz

rc4:

- Load code did not set personality for
  binaries without an interpreter: This was 
  breaking static apps on several archs         (Tom Gall)