Validate fails for HEAD on OS X

[Manuel M T Chakravarty]

> /Users/chak/Code/ghc-test/ghc/stage1-inplace/ghc -optc-Werror -optc- 
> Wall -optc-W -optc-Wstrict-prototypes -optc-Wmissing-prototypes - 
> optc-Wmissing-declarations -optc-Winline -optc-Waggregate-return - 
> optc-I../includes -optc-I. -optc-Iparallel -optc-Ism -optc-Ieventlog  
> -optc-DCOMPILING_RTS -optc-fomit-frame-pointer -optc-I../gmp/ 
> gmpbuild -optc-I../libffi/build/include -optc-fno-strict-aliasing  - 
> Werror -H64m -O0 -fasm -optc-O2 -I../includes -I. -Iparallel -Ism - 
> Ieventlog -DCOMPILING_RTS -package-name rts -static  -I../gmp/ 
> gmpbuild -I../libffi/build/include -I. -dcmm-lint  -hisuf thr_hi - 
> hcsuf thr_hc -osuf thr_o -optc-DTHREADED_RTS   -c posix/OSThreads.c - 
> o posix/OSThreads.thr_o
>
> posix/OSThreads.c: In function 'setThreadAffinity':
>
> posix/OSThreads.c:213:0:  warning: unused parameter 'n'
>
> posix/OSThreads.c:213:0:  warning: unused parameter 'm'

Do you guys need a box to run validate runs on OS X?  I can offer one.

Manuel