[kBuild/f20] Update to trunk HEAD version, have a fix for gcc >= 4.7 (http://trac.netlabs.org/kbuild/ticket/112)

[Sérgio Monteiro Basto]

Summary of changes:

  1e160e7... Update to trunk HEAD version, have a fix for gcc >= 4.7 (ht (*)

(*) This commit already existed in another branch; no separate mail sent