nevermind, pardon the noise On Sat, Oct 18, 2014 at 4:52 PM, Carter Schonwald < carter.schonwald@gmail.com> wrote:

hey all, when doing a devel1 build i got the following panic

"inplace/bin/genapply" >rts/dist/build/AutoApply.cmm"inplace/bin/ghc-stage1" -static -H64m -O -fasm -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -this-package-key rts -dcmm-lint -DDTRACE -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c rts/dist/build/AutoApply.cmm -o rts/dist/build/AutoApply.o"inplace/bin/ghc-stage1" -fPIC -dynamic -H64m -O -fasm -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -this-package-key rts -dcmm-lint -DDTRACE -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c rts/dist/build/AutoApply.cmm -o rts/dist/build/AutoApply.dyn_o"inplace/bin/ghc-stage1" -static -eventlog -H64m -O -fasm -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -this-package-key rts -dcmm-lint -DDTRACE -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c rts/dist/build/AutoApply.cmm -o rts/dist/build/AutoApply.l_o"inplace/bin/ghc-stage1" -static -optc-DDEBUG -ticky -DTICKY_TICKY -H64m -O -fasm -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -this-package-key rts -dcmm-lint -DDTRACE -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -O0 -c rts/dist/build/AutoApply.cmm -o rts/dist/build/AutoApply.debug_o*** Core Lint warnings : in result of Desugar (after optimization) ***{-# LINE 101 "libraries/ghc-prim/GHC/Classes.hs #-}: Warning: [RHS of $c/=_a1qs :: GHC.Types.Float -> GHC.Types.Float -> GHC.Types.Bool] INLINE binder is (non-rule) loop breaker: $c/=_a1qs{-# LINE 104 "libraries/ghc-prim/GHC/Classes.hs #-}: Warning: [RHS of $c/=_a1ql :: GHC.Types.Double -> GHC.Types.Double -> GHC.Types.Bool] INLINE binder is (non-rule) loop breaker: $c/=_a1ql{-# LINE 85 "libraries/ghc-prim/GHC/Classes.hs #-}: Warning: [RHS of $c/=_a1qZ :: forall a_a1X. GHC.Classes.Eq a_a1X => [a_a1X] -> [a_a1X] -> GHC.Types.Bool] INLINE binder is (non-rule) loop breaker: $c/=_a1qZ ghc-stage1: panic! (the 'impossible' happened) (GHC version 7.9.20141018 for x86_64-apple-darwin): tyConAppTyCon a_12 Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug

any ideas of how I could debug this? Or what it might be?