"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]     -c rts/sm/GCAux.c -o rts/dist/build/sm/GCAux.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]     -c rts/sm/Sweep.c -o rts/dist/build/sm/Sweep.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] -c rts/sm/GCUtils.c -o rts/dist/build/sm/GCUtils.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] /sm/BlockAlloc.c -o rts/dist/build/sm/BlockAlloc.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]  rts/sm/MarkWeak.c -o rts/dist/build/sm/MarkWeak.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]    -O2    -c rts/sm/GC.c -o rts/dist/build/sm/GC.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]   -c rts/sm/Sanity.c -o rts/dist/build/sm/Sanity.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] O2    -c rts/sm/Evac.c -o rts/dist/build/sm/Evac.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] -c rts/sm/Storage.c -o rts/dist/build/sm/Storage.o
"inplace/bin/mkdirhier" rts/dist/build/eventlog//.
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] g/EventLog.c -o rts/dist/build/eventlog/EventLog.o
"inplace/bin/mkdirhier" rts/dist/build/posix//.
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...]  rts/posix/OSMem.c -o rts/dist/build/posix/OSMem.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] /posix/GetTime.c -o rts/dist/build/posix/GetTime.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector [...] ix/OSThreads.c -o rts/dist/build/posix/OSThreads.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes  [...] ild -Irts/dist/build/autogen           -O2    -c rts/posix/Itimer.c -o rts/dist/build/posix/Itimer.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes  [...] ist/build -Irts/dist/build/autogen           -O2    -c rts/posix/TTY.c -o rts/dist/build/posix/TTY.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes  [...] d -Irts/dist/build/autogen           -O2    -c rts/posix/Signals.c -o rts/dist/build/posix/Signals.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-Wmissing-declarations -optc-Winl [...] -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/posix/Select.c -o rts/dist/build/posix/Select.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-Wmissing-declarations -optc-Winline -optc-Waggregate-return -optc-Wpointer-arith -optc-Wmissing-noreturn -optc-Wnested-externs -optc-Wredundant-decls -optc-Iincludes -optc-Iincludes/dist -optc-Iincludes/dist-derivedconstants/header -optc-Iincludes/dist-ghcconstants/header -optc-Irts -optc-Irts/dist/build -optc-DCOMPILING_RTS -optc-DNOSMP -optc-DUSE_LIBFFI_FOR_ADJUSTORS -optc-fno-strict-aliasing -optc-fno-common -optc-DBE_CONSERVATIVE -optc-O2 -optc-fomit-frame-pointer -optc-DRtsWay=\"rts_v\" -static  -H32m -O -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -optc-DNOSMP -dcmm-lint      -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/posix/GetEnv.c -o rts/dist/build/posix/GetEnv.o
"inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wextra -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-Wmissing-declarations -optc-Winline -optc-Waggregate-return -optc-Wpointer-arith -optc-Wmissing-noreturn -optc-Wnested-externs -optc-Wredundant-decls -optc-Iincludes -optc-Iincludes/dist -optc-Iincludes/dist-derivedconstants/header -optc-Iincludes/dist-ghcconstants/header -optc-Irts -optc-Irts/dist/build -optc-DCOMPILING_RTS -optc-DNOSMP -optc-DUSE_LIBFFI_FOR_ADJUSTORS -optc-fno-strict-aliasing -optc-fno-common -optc-DBE_CONSERVATIVE -optc-O2 -optc-fomit-frame-pointer -optc-DRtsWay=\"rts_v\" -static  -H32m -O -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -optc-DNOSMP -dcmm-lint      -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/AdjustorAsm.S -o rts/dist/build/AdjustorAsm.o
"inplace/bin/ghc-stage1" -static  -H32m -O -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -optc-DNOSMP -dcmm-lint      -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/PrimOps.cmm -o rts/dist/build/PrimOps.o
ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 7.9.20140429 for powerpc64-unknown-linux):
	globalRegMaybe not defined for this platform

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

make[1]: *** [rts/dist/build/PrimOps.o] Error 1
make: *** [all] Error 2