[RFA:] Make ix86-pc-linux-gnulibc1 buildable [fixinc fix included]

[Benjamin Kosnik]

>libstdc++-v3:
>	* testsuite/testsuite_hooks.cc (__set_testsuite_memlimit): Use
>	__typeof__ (r.rlim_cur), not rlim_t in declaration of limit.

This is fine. Also, this shoud probably go into the branch, as this is a
regression.

thanks,
benjamin