validate fails

[Isaac Dupree]

]./validate  #compiling ghc HEAD

...

../compiler/ghc-inplace -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-DCOMPILING_RTS -optc-fomit-frame-pointer -optc-I../gmp/gmpbuild 
-optc-fno-strict-aliasing -optc-w -H128m -O -fasm -optc-O2 -I../includes 
-I. -Iparallel -Ism -DCOMPILING_RTS -package-name rts -static 
-I../gmp/gmpbuild -I. -#include HCIncludes.h -dcmm-lint     -c 
RetainerProfile.c -o RetainerProfile.o
cc1: warnings being treated as errors
../includes/SMP.h: In function 'unlockTSO':

../includes/SMP.h:339:0:
      warning: passing argument 2 of 'unlockClosure' discards qualifiers 
from pointer target type
make[1]: *** [RaiseAsync.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [stage1] Error 1


]gcc --version
gcc (GCC) 4.2.2
]ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.8.2


Isaac