At nixos.org we're stabilizing a branch containing glibc-2.17. The problem is that the C type __swblk_t has been removed.
I made a quick fix by removing the (def-c-type __swblk_t) line from modules/bindings/glibc/linux.lisp, which made it build (clisp-2.49 with patched <bits/ipctypes.h> usage).
Is this a correct way? Are you going solve this problem as well?