Thanks.  Indeed, in parallel, I randomly tried that and indeed it’s going again now. 

· But why is dll-split running at all on Linux? Ben says: “I believe dll-split is run to ensure that the module list remains consistent, even when developers are building on non-Windows platforms”.  That makes sense; but it would be good to document it.

· I’m puzzled by why my branch might have changed the transitive dependencies from DynFlags.  But you can’t really help with that!

Anyway, by simply removing those two, the pipe is unblocked. I hope it’s the right thing to do.  Thanks!

Simon

From: Alan & Kim Zimmerman [mailto:alan.zimm@gmail.com]
Sent: 27 October 2015 09:12
To: Simon Peyton Jones
Cc: ghc-devs@haskell.org; Ben Gamari
Subject: Re: dll-split

I think you need to remove Ctype and Lexer from https://github.com/ghc/ghc/blob/master/compiler/ghc.mk#L498

On 27 Oct 2015 11:06 AM, "Simon Peyton Jones" <simonpj@microsoft.com> wrote:

It’s just not my day.

Now, on Linux, on my branch wip/spj-wildcard-refactor, I get a failure in dll-split!  Should dll-split be running at all on Linux????

The output it produces is below.

I’m totally stuck.  Help desperately needed.

Simon

inplace/bin/dll-split compiler/stage2/build/.depend-v-p-dyn.haskell "DynFlags" "Annotations ApiAnnotation Avail Bag BasicTypes Binary BooleanFormula BreakArray BufWrite Class CmdLineParser CmmType CoAxiom ConLike Coercion Config Constants CoreArity CoreFVs CoreSubst CoreSyn CoreTidy CoreUnfold CoreUtils CoreSeq CoreStats CostCentre Ctype DataCon Demand Digraph DriverPhases DynFlags Encoding ErrUtils Exception FamInstEnv FastFunctions FastMutInt FastString FastStringEnv FieldLabel Fingerprint FiniteMap ForeignCall Hooks HsBinds HsDecls HsDoc HsExpr HsImpExp HsLit PlaceHolder HsPat HsSyn HsTypes HsUtils HscTypes IOEnv Id IdInfo IfaceSyn IfaceType InstEnv Kind Lexeme Lexer ListSetOps Literal Maybes MkCore MkId Module MonadUtils Name NameEnv NameSet OccName OccurAnal OptCoercion OrdList Outputable PackageConfig Packages Pair Panic PatSyn PipelineMonad Platform PlatformConstants PprCore PrelNames PrelRules Pretty PrimOp RdrName Rules Serialized SrcLoc StaticFlags StringBuffer TcEvidence TcRnTypes TcType TrieMap TyCon Type TypeRep TysPrim TysWiredIn Unify UniqFM UniqSet UniqSupply Unique Util Var VarEnv VarSet Bitmap BlockId ByteCodeAsm ByteCodeInstr ByteCodeItbls CLabel Cmm CmmCallConv CmmExpr CmmInfo CmmMachOp CmmNode CmmSwitch CmmUtils CodeGen.Platform CodeGen.Platform.ARM CodeGen.Platform.ARM64 CodeGen.Platform.NoRegs CodeGen.Platform.PPC CodeGen.Platform.PPC_Darwin CodeGen.Platform.SPARC CodeGen.Platform.X86 CodeGen.Platform.X86_64 Hoopl Hoopl.Dataflow InteractiveEvalTypes MkGraph PprCmm PprCmmDecl PprCmmExpr Reg RegClass SMRep StgCmmArgRep StgCmmClosure StgCmmEnv StgCmmLayout StgCmmMonad StgCmmProf StgCmmTicky StgCmmUtils StgSyn Stream"

Reachable modules from DynFlags out of date

Please fix compiler/ghc.mk, or building DLLs on Windows may break (#7780)

Redundant modules: Ctype Lexer      

simonpj@cam-05-unx:~/5builds/HEAD-2$

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