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problem with cabal-install-1.16.0 and Cabal-1.16.0.1 on Haskell Platform for OS X
by Derrell Piper 09 Oct '12

09 Oct '12

Hi, New Haskell user here. I have the latest Haskell Platform 2012.2.0.0 for Mac OS X, 64 bit installed. I have not installed any additional packages. Believe me, the Prelude hurts enough. Anyways, seeing the big update to cabal, I decided to install it and did a: cabal install cabal-install-1.16.0 Cabal-1.16.0.1 ...per the announcement. The installation seemingly went well (log attached) but I'm left with a symlink farm that's still pointing at the old version. NB: I did the installation in my own account (ddp), not via sudo which looks like what was probably expected given the ownerships I do see. Here's what I'm left with: % which cabal /usr/bin/cabal % ls -la /usr/bin/cabal lrwxr-xr-x 1 root wheel - 26 Oct 8 16:42 /usr/bin/cabal -> /Library/Haskell/bin/cabal % ls -la /Library/Haskell/bin/cabal* lrwxr-xr-x 1 ddp wheel - 10 Oct 8 16:42 /Library/Haskell/bin/cabal -> cabal.wrap lrwxr-xr-x 1 ddp wheel - 37 Oct 8 16:42 /Library/Haskell/bin/cabal.real -> ../lib/cabal-install-0.14.0/bin/cabal -rwxr-xr-x 1 root admin - 4197 May 27 12:37 /Library/Haskell/bin/cabal.wrap I find that it actually installed itself here: % ls -la ~/Library/Haskell/bin/cabal* lrwxr-xr-x 1 ddp staff - 47 Oct 8 20:45 /Users/ddp/Library/Haskell/bin/cabal -> ../ghc-7.4.1/lib/cabal-install-1.16.0/bin/cabal So I guess my questions are: 1) did I miss some step along the way? 2) what's the correct way to fix this? Just change the cabal.real symlink to point to where it actually is? 3) which, if any, directories should I have in my PATH in general: /Library/Haskell/bin, ~/Library/Haskell/bin, neither or both? Thanks, Derrell Installation log: fluffy512% cabal --version cabal-install version 0.14.0 using version 1.14.0 of the Cabal library fluffy513% cabal update Downloading the latest package list from hackage.haskell.org Note: there is a new version of cabal-install available. To upgrade, run: cabal install cabal-install fluffy514% cabal install cabal-install-1.16.0 Cabal-1.16.0.1 Resolving dependencies... [ 1 of 65] Compiling Distribution.Compat.Exception ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Compat/Exception.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Compat/Exception.o ) [ 2 of 65] Compiling Distribution.Compat.TempFile ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Compat/TempFile.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Compat/TempFile.o ) [ 3 of 65] Compiling Distribution.Compat.CopyFile ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Compat/CopyFile.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Compat/CopyFile.o ) [ 4 of 65] Compiling Distribution.GetOpt ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/GetOpt.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/GetOpt.o ) [ 5 of 65] Compiling Distribution.Compat.ReadP ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Compat/ReadP.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Compat/ReadP.o ) [ 6 of 65] Compiling Distribution.Text ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Text.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Text.o ) [ 7 of 65] Compiling Distribution.Version ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Version.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Version.o ) [ 8 of 65] Compiling Language.Haskell.Extension ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Language/Haskell/Extension.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Language/Haskell/Extension.o ) [ 9 of 65] Compiling Distribution.TestSuite ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/TestSuite.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/TestSuite.o ) [10 of 65] Compiling Distribution.System ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/System.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/System.o ) [11 of 65] Compiling Distribution.Simple.PreProcess.Unlit ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/PreProcess/Unlit.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/PreProcess/Unlit.o ) [12 of 65] Compiling Distribution.ReadE ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/ReadE.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/ReadE.o ) [13 of 65] Compiling Distribution.Verbosity ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Verbosity.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Verbosity.o ) [14 of 65] Compiling Distribution.Package ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Package.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Package.o ) [15 of 65] Compiling Distribution.ModuleName ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/ModuleName.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/ModuleName.o ) [16 of 65] Compiling Distribution.Simple.Utils ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Utils.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Utils.o ) [17 of 65] Compiling Distribution.Simple.Program.Types ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Types.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Types.o ) [18 of 65] Compiling Distribution.Simple.Program.Builtin ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Builtin.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Builtin.o ) [19 of 65] Compiling Distribution.Simple.Program.Db ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Db.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Db.o ) [20 of 65] Compiling Distribution.Simple.Program.Run ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Run.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Run.o ) [21 of 65] Compiling Distribution.Simple.Program ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program.o ) [22 of 65] Compiling Distribution.Simple.Program.Ar ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Ar.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Ar.o ) [23 of 65] Compiling Distribution.Simple.Program.Hpc ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Hpc.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Hpc.o ) [24 of 65] Compiling Distribution.Simple.Program.Ld ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Ld.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Ld.o ) [25 of 65] Compiling Distribution.Simple.Program.Script ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/Script.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/Script.o ) [26 of 65] Compiling Distribution.License ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/License.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/License.o ) [27 of 65] Compiling Distribution.Compiler ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Compiler.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Compiler.o ) [28 of 65] Compiling Distribution.PackageDescription ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/PackageDescription.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/PackageDescription.o ) [29 of 65] Compiling Distribution.PackageDescription.Configuration ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/PackageDescription/Configuration.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/PackageDescription/Configuration.o ) [30 of 65] Compiling Distribution.PackageDescription.Check ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/PackageDescription/Check.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/PackageDescription/Check.o ) [31 of 65] Compiling Distribution.ParseUtils ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/ParseUtils.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/ParseUtils.o ) [32 of 65] Compiling Distribution.InstalledPackageInfo ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/InstalledPackageInfo.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/InstalledPackageInfo.o ) [33 of 65] Compiling Distribution.Simple.PackageIndex ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/PackageIndex.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/PackageIndex.o ) [34 of 65] Compiling Distribution.Simple.GHC.IPI642 ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/GHC/IPI642.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/GHC/IPI642.o ) [35 of 65] Compiling Distribution.Simple.GHC.IPI641 ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/GHC/IPI641.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/GHC/IPI641.o ) [36 of 65] Compiling Distribution.PackageDescription.Parse ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/PackageDescription/Parse.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/PackageDescription/Parse.o ) [37 of 65] Compiling Distribution.Simple.Command ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Command.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Command.o ) [38 of 65] Compiling Distribution.Simple.Compiler ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Compiler.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Compiler.o ) [39 of 65] Compiling Distribution.Simple.Program.HcPkg ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/HcPkg.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/HcPkg.o ) [40 of 65] Compiling Distribution.Simple.InstallDirs ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/InstallDirs.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/InstallDirs.o ) [41 of 65] Compiling Distribution.Simple.Setup ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Setup.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Setup.o ) [42 of 65] Compiling Distribution.Simple.LocalBuildInfo ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/LocalBuildInfo.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/LocalBuildInfo.o ) [43 of 65] Compiling Distribution.Simple.Build.Macros ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Build/Macros.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Build/Macros.o ) [44 of 65] Compiling Distribution.Simple.BuildPaths ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/BuildPaths.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/BuildPaths.o ) [45 of 65] Compiling Distribution.Simple.Build.PathsModule ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Build/PathsModule.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Build/PathsModule.o ) [46 of 65] Compiling Distribution.Simple.LHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/LHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/LHC.o ) [47 of 65] Compiling Distribution.Simple.Hpc ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Hpc.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Hpc.o ) [48 of 65] Compiling Distribution.Simple.JHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/JHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/JHC.o ) [49 of 65] Compiling Distribution.Simple.NHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/NHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/NHC.o ) [50 of 65] Compiling Distribution.Simple.UHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/UHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/UHC.o ) [51 of 65] Compiling Distribution.Simple.Test ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Test.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Test.o ) [52 of 65] Compiling Distribution.Simple.PreProcess ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/PreProcess.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/PreProcess.o ) [53 of 65] Compiling Distribution.Simple.Hugs ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Hugs.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Hugs.o ) [54 of 65] Compiling Distribution.Simple.SrcDist ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/SrcDist.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/SrcDist.o ) [55 of 65] Compiling Distribution.Simple.UserHooks ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/UserHooks.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/UserHooks.o ) [56 of 65] Compiling Distribution.Simple.Bench ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Bench.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Bench.o ) [57 of 65] Compiling Distribution.Simple.Program.GHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Program/GHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Program/GHC.o ) [58 of 65] Compiling Distribution.Simple.GHC ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/GHC.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/GHC.o ) [59 of 65] Compiling Distribution.Simple.Configure ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Configure.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Configure.o ) [60 of 65] Compiling Distribution.Simple.Install ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Install.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Install.o ) [61 of 65] Compiling Distribution.Simple.Register ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Register.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Register.o ) [62 of 65] Compiling Distribution.Simple.Build ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Build.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Build.o ) [63 of 65] Compiling Distribution.Simple.Haddock ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple/Haddock.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple/Haddock.o ) [64 of 65] Compiling Distribution.Simple ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Distribution/Simple.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Distribution/Simple.o ) [65 of 65] Compiling Main ( /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/Setup.hs, /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/Main.o ) Linking /var/folders/sm/f2yb5sp11490bcy5k6t46v200000gn/T/Cabal-1.16.0.1-48304/Cabal-1.16.0.1/dist/setup/setup ... Configuring Cabal-1.16.0.1... Building Cabal-1.16.0.1... Preprocessing library Cabal-1.16.0.1... [ 1 of 67] Compiling Paths_Cabal ( dist/build/autogen/Paths_Cabal.hs, dist/build/Paths_Cabal.o ) [ 2 of 67] Compiling Distribution.TestSuite ( Distribution/TestSuite.hs, dist/build/Distribution/TestSuite.o ) [ 3 of 67] Compiling Distribution.Simple.PreProcess.Unlit ( Distribution/Simple/PreProcess/Unlit.hs, dist/build/Distribution/Simple/PreProcess/Unlit.o ) [ 4 of 67] Compiling Distribution.GetOpt ( Distribution/GetOpt.hs, dist/build/Distribution/GetOpt.o ) [ 5 of 67] Compiling Distribution.Compat.Exception ( Distribution/Compat/Exception.hs, dist/build/Distribution/Compat/Exception.o ) [ 6 of 67] Compiling Distribution.Compat.TempFile ( Distribution/Compat/TempFile.hs, dist/build/Distribution/Compat/TempFile.o ) [ 7 of 67] Compiling Distribution.Compat.CopyFile ( Distribution/Compat/CopyFile.hs, dist/build/Distribution/Compat/CopyFile.o ) [ 8 of 67] Compiling Distribution.Compat.ReadP ( Distribution/Compat/ReadP.hs, dist/build/Distribution/Compat/ReadP.o ) [ 9 of 67] Compiling Distribution.ReadE ( Distribution/ReadE.hs, dist/build/Distribution/ReadE.o ) [10 of 67] Compiling Distribution.Verbosity ( Distribution/Verbosity.hs, dist/build/Distribution/Verbosity.o ) [11 of 67] Compiling Distribution.Text ( Distribution/Text.hs, dist/build/Distribution/Text.o ) [12 of 67] Compiling Distribution.ModuleName ( Distribution/ModuleName.hs, dist/build/Distribution/ModuleName.o ) [13 of 67] Compiling Distribution.System ( Distribution/System.hs, dist/build/Distribution/System.o ) [14 of 67] Compiling Language.Haskell.Extension ( Language/Haskell/Extension.hs, dist/build/Language/Haskell/Extension.o ) [15 of 67] Compiling Distribution.Version ( Distribution/Version.hs, dist/build/Distribution/Version.o ) [16 of 67] Compiling Distribution.License ( Distribution/License.hs, dist/build/Distribution/License.o ) [17 of 67] Compiling Distribution.Package ( Distribution/Package.hs, dist/build/Distribution/Package.o ) [18 of 67] Compiling Distribution.Simple.Utils ( Distribution/Simple/Utils.hs, dist/build/Distribution/Simple/Utils.o ) [19 of 67] Compiling Distribution.Simple.Program.Types ( Distribution/Simple/Program/Types.hs, dist/build/Distribution/Simple/Program/Types.o ) [20 of 67] Compiling Distribution.Simple.Program.Run ( Distribution/Simple/Program/Run.hs, dist/build/Distribution/Simple/Program/Run.o ) [21 of 67] Compiling Distribution.Simple.Program.Ar ( Distribution/Simple/Program/Ar.hs, dist/build/Distribution/Simple/Program/Ar.o ) [22 of 67] Compiling Distribution.Simple.Program.Ld ( Distribution/Simple/Program/Ld.hs, dist/build/Distribution/Simple/Program/Ld.o ) [23 of 67] Compiling Distribution.Simple.Program.Hpc ( Distribution/Simple/Program/Hpc.hs, dist/build/Distribution/Simple/Program/Hpc.o ) [24 of 67] Compiling Distribution.Simple.Program.Script ( Distribution/Simple/Program/Script.hs, dist/build/Distribution/Simple/Program/Script.o ) [25 of 67] Compiling Distribution.Simple.Program.Builtin ( Distribution/Simple/Program/Builtin.hs, dist/build/Distribution/Simple/Program/Builtin.o ) [26 of 67] Compiling Distribution.Simple.Program.Db ( Distribution/Simple/Program/Db.hs, dist/build/Distribution/Simple/Program/Db.o ) [27 of 67] Compiling Distribution.Simple.Program ( Distribution/Simple/Program.hs, dist/build/Distribution/Simple/Program.o ) [28 of 67] Compiling Distribution.Compiler ( Distribution/Compiler.hs, dist/build/Distribution/Compiler.o ) [29 of 67] Compiling Distribution.ParseUtils ( Distribution/ParseUtils.hs, dist/build/Distribution/ParseUtils.o ) [30 of 67] Compiling Distribution.InstalledPackageInfo ( Distribution/InstalledPackageInfo.hs, dist/build/Distribution/InstalledPackageInfo.o ) [31 of 67] Compiling Distribution.Simple.PackageIndex ( Distribution/Simple/PackageIndex.hs, dist/build/Distribution/Simple/PackageIndex.o ) [32 of 67] Compiling Distribution.Simple.GHC.IPI642 ( Distribution/Simple/GHC/IPI642.hs, dist/build/Distribution/Simple/GHC/IPI642.o ) [33 of 67] Compiling Distribution.Simple.GHC.IPI641 ( Distribution/Simple/GHC/IPI641.hs, dist/build/Distribution/Simple/GHC/IPI641.o ) [34 of 67] Compiling Distribution.Simple.Command ( Distribution/Simple/Command.hs, dist/build/Distribution/Simple/Command.o ) [35 of 67] Compiling Distribution.PackageDescription ( Distribution/PackageDescription.hs, dist/build/Distribution/PackageDescription.o ) [36 of 67] Compiling Distribution.PackageDescription.Configuration ( Distribution/PackageDescription/Configuration.hs, dist/build/Distribution/PackageDescription/Configuration.o ) [37 of 67] Compiling Distribution.PackageDescription.Parse ( Distribution/PackageDescription/Parse.hs, dist/build/Distribution/PackageDescription/Parse.o ) [38 of 67] Compiling Distribution.PackageDescription.PrettyPrint ( Distribution/PackageDescription/PrettyPrint.hs, dist/build/Distribution/PackageDescription/PrettyPrint.o ) [39 of 67] Compiling Distribution.PackageDescription.Check ( Distribution/PackageDescription/Check.hs, dist/build/Distribution/PackageDescription/Check.o ) [40 of 67] Compiling Distribution.Simple.Compiler ( Distribution/Simple/Compiler.hs, dist/build/Distribution/Simple/Compiler.o ) [41 of 67] Compiling Distribution.Simple.Program.HcPkg ( Distribution/Simple/Program/HcPkg.hs, dist/build/Distribution/Simple/Program/HcPkg.o ) [42 of 67] Compiling Distribution.Simple.InstallDirs ( Distribution/Simple/InstallDirs.hs, dist/build/Distribution/Simple/InstallDirs.o ) [43 of 67] Compiling Distribution.Simple.Setup ( Distribution/Simple/Setup.hs, dist/build/Distribution/Simple/Setup.o ) [44 of 67] Compiling Distribution.Make ( Distribution/Make.hs, dist/build/Distribution/Make.o ) [45 of 67] Compiling Distribution.Simple.Program.GHC ( Distribution/Simple/Program/GHC.hs, dist/build/Distribution/Simple/Program/GHC.o ) [46 of 67] Compiling Distribution.Simple.LocalBuildInfo ( Distribution/Simple/LocalBuildInfo.hs, dist/build/Distribution/Simple/LocalBuildInfo.o ) [47 of 67] Compiling Distribution.Simple.BuildPaths ( Distribution/Simple/BuildPaths.hs, dist/build/Distribution/Simple/BuildPaths.o ) [48 of 67] Compiling Distribution.Simple.JHC ( Distribution/Simple/JHC.hs, dist/build/Distribution/Simple/JHC.o ) [49 of 67] Compiling Distribution.Simple.NHC ( Distribution/Simple/NHC.hs, dist/build/Distribution/Simple/NHC.o ) [50 of 67] Compiling Distribution.Simple.UHC ( Distribution/Simple/UHC.hs, dist/build/Distribution/Simple/UHC.o ) [51 of 67] Compiling Distribution.Simple.Build.Macros ( Distribution/Simple/Build/Macros.hs, dist/build/Distribution/Simple/Build/Macros.o ) [52 of 67] Compiling Distribution.Simple.Build.PathsModule ( Distribution/Simple/Build/PathsModule.hs, dist/build/Distribution/Simple/Build/PathsModule.o ) Distribution/Simple/Build/PathsModule.hs:210:19: Warning: Pattern match(es) are non-exhaustive In a case alternative: Patterns not matched: PPC PPC64 Sparc Arm ... [53 of 67] Compiling Distribution.Simple.GHC ( Distribution/Simple/GHC.hs, dist/build/Distribution/Simple/GHC.o ) [54 of 67] Compiling Distribution.Simple.LHC ( Distribution/Simple/LHC.hs, dist/build/Distribution/Simple/LHC.o ) [55 of 67] Compiling Distribution.Simple.Hpc ( Distribution/Simple/Hpc.hs, dist/build/Distribution/Simple/Hpc.o ) [56 of 67] Compiling Distribution.Simple.Test ( Distribution/Simple/Test.hs, dist/build/Distribution/Simple/Test.o ) [57 of 67] Compiling Distribution.Simple.PreProcess ( Distribution/Simple/PreProcess.hs, dist/build/Distribution/Simple/PreProcess.o ) [58 of 67] Compiling Distribution.Simple.UserHooks ( Distribution/Simple/UserHooks.hs, dist/build/Distribution/Simple/UserHooks.o ) [59 of 67] Compiling Distribution.Simple.Bench ( Distribution/Simple/Bench.hs, dist/build/Distribution/Simple/Bench.o ) [60 of 67] Compiling Distribution.Simple.SrcDist ( Distribution/Simple/SrcDist.hs, dist/build/Distribution/Simple/SrcDist.o ) [61 of 67] Compiling Distribution.Simple.Hugs ( Distribution/Simple/Hugs.hs, dist/build/Distribution/Simple/Hugs.o ) [62 of 67] Compiling Distribution.Simple.Register ( Distribution/Simple/Register.hs, dist/build/Distribution/Simple/Register.o ) [63 of 67] Compiling Distribution.Simple.Configure ( Distribution/Simple/Configure.hs, dist/build/Distribution/Simple/Configure.o ) [64 of 67] Compiling Distribution.Simple.Install ( Distribution/Simple/Install.hs, dist/build/Distribution/Simple/Install.o ) [65 of 67] Compiling Distribution.Simple.Build ( Distribution/Simple/Build.hs, dist/build/Distribution/Simple/Build.o ) [66 of 67] Compiling Distribution.Simple.Haddock ( Distribution/Simple/Haddock.hs, dist/build/Distribution/Simple/Haddock.o ) [67 of 67] Compiling Distribution.Simple ( Distribution/Simple.hs, dist/build/Distribution/Simple.o ) [ 1 of 67] Compiling Paths_Cabal ( dist/build/autogen/Paths_Cabal.hs, dist/build/Paths_Cabal.p_o ) [ 2 of 67] Compiling Distribution.TestSuite ( Distribution/TestSuite.hs, dist/build/Distribution/TestSuite.p_o ) [ 3 of 67] Compiling Distribution.Simple.PreProcess.Unlit ( Distribution/Simple/PreProcess/Unlit.hs, dist/build/Distribution/Simple/PreProcess/Unlit.p_o ) [ 4 of 67] Compiling Distribution.GetOpt ( Distribution/GetOpt.hs, dist/build/Distribution/GetOpt.p_o ) [ 5 of 67] Compiling Distribution.Compat.Exception ( Distribution/Compat/Exception.hs, dist/build/Distribution/Compat/Exception.p_o ) [ 6 of 67] Compiling Distribution.Compat.TempFile ( Distribution/Compat/TempFile.hs, dist/build/Distribution/Compat/TempFile.p_o ) [ 7 of 67] Compiling Distribution.Compat.CopyFile ( Distribution/Compat/CopyFile.hs, dist/build/Distribution/Compat/CopyFile.p_o ) [ 8 of 67] Compiling Distribution.Compat.ReadP ( Distribution/Compat/ReadP.hs, dist/build/Distribution/Compat/ReadP.p_o ) [ 9 of 67] Compiling Distribution.ReadE ( Distribution/ReadE.hs, dist/build/Distribution/ReadE.p_o ) [10 of 67] Compiling Distribution.Verbosity ( Distribution/Verbosity.hs, dist/build/Distribution/Verbosity.p_o ) [11 of 67] Compiling Distribution.Text ( Distribution/Text.hs, dist/build/Distribution/Text.p_o ) [12 of 67] Compiling Distribution.ModuleName ( Distribution/ModuleName.hs, dist/build/Distribution/ModuleName.p_o ) [13 of 67] Compiling Distribution.System ( Distribution/System.hs, dist/build/Distribution/System.p_o ) [14 of 67] Compiling Language.Haskell.Extension ( Language/Haskell/Extension.hs, dist/build/Language/Haskell/Extension.p_o ) [15 of 67] Compiling Distribution.Version ( Distribution/Version.hs, dist/build/Distribution/Version.p_o ) [16 of 67] Compiling Distribution.License ( Distribution/License.hs, dist/build/Distribution/License.p_o ) [17 of 67] Compiling Distribution.Package ( Distribution/Package.hs, dist/build/Distribution/Package.p_o ) [18 of 67] Compiling Distribution.Simple.Utils ( Distribution/Simple/Utils.hs, dist/build/Distribution/Simple/Utils.p_o ) [19 of 67] Compiling Distribution.Simple.Program.Types ( Distribution/Simple/Program/Types.hs, dist/build/Distribution/Simple/Program/Types.p_o ) [20 of 67] Compiling Distribution.Simple.Program.Run ( Distribution/Simple/Program/Run.hs, dist/build/Distribution/Simple/Program/Run.p_o ) [21 of 67] Compiling Distribution.Simple.Program.Ar ( Distribution/Simple/Program/Ar.hs, dist/build/Distribution/Simple/Program/Ar.p_o ) [22 of 67] Compiling Distribution.Simple.Program.Ld ( Distribution/Simple/Program/Ld.hs, dist/build/Distribution/Simple/Program/Ld.p_o ) [23 of 67] Compiling Distribution.Simple.Program.Hpc ( Distribution/Simple/Program/Hpc.hs, dist/build/Distribution/Simple/Program/Hpc.p_o ) [24 of 67] Compiling Distribution.Simple.Program.Script ( Distribution/Simple/Program/Script.hs, dist/build/Distribution/Simple/Program/Script.p_o ) [25 of 67] Compiling Distribution.Simple.Program.Builtin ( Distribution/Simple/Program/Builtin.hs, dist/build/Distribution/Simple/Program/Builtin.p_o ) [26 of 67] Compiling Distribution.Simple.Program.Db ( Distribution/Simple/Program/Db.hs, dist/build/Distribution/Simple/Program/Db.p_o ) [27 of 67] Compiling Distribution.Simple.Program ( Distribution/Simple/Program.hs, dist/build/Distribution/Simple/Program.p_o ) [28 of 67] Compiling Distribution.Compiler ( Distribution/Compiler.hs, dist/build/Distribution/Compiler.p_o ) [29 of 67] Compiling Distribution.ParseUtils ( Distribution/ParseUtils.hs, dist/build/Distribution/ParseUtils.p_o ) [30 of 67] Compiling Distribution.InstalledPackageInfo ( Distribution/InstalledPackageInfo.hs, dist/build/Distribution/InstalledPackageInfo.p_o ) [31 of 67] Compiling Distribution.Simple.PackageIndex ( Distribution/Simple/PackageIndex.hs, dist/build/Distribution/Simple/PackageIndex.p_o ) [32 of 67] Compiling Distribution.Simple.GHC.IPI642 ( Distribution/Simple/GHC/IPI642.hs, dist/build/Distribution/Simple/GHC/IPI642.p_o ) [33 of 67] Compiling Distribution.Simple.GHC.IPI641 ( Distribution/Simple/GHC/IPI641.hs, dist/build/Distribution/Simple/GHC/IPI641.p_o ) [34 of 67] Compiling Distribution.Simple.Command ( Distribution/Simple/Command.hs, dist/build/Distribution/Simple/Command.p_o ) [35 of 67] Compiling Distribution.PackageDescription ( Distribution/PackageDescription.hs, dist/build/Distribution/PackageDescription.p_o ) [36 of 67] Compiling Distribution.PackageDescription.Configuration ( Distribution/PackageDescription/Configuration.hs, dist/build/Distribution/PackageDescription/Configuration.p_o ) [37 of 67] Compiling Distribution.PackageDescription.Parse ( Distribution/PackageDescription/Parse.hs, dist/build/Distribution/PackageDescription/Parse.p_o ) [38 of 67] Compiling Distribution.PackageDescription.PrettyPrint ( Distribution/PackageDescription/PrettyPrint.hs, dist/build/Distribution/PackageDescription/PrettyPrint.p_o ) [39 of 67] Compiling Distribution.PackageDescription.Check ( Distribution/PackageDescription/Check.hs, dist/build/Distribution/PackageDescription/Check.p_o ) [40 of 67] Compiling Distribution.Simple.Compiler ( Distribution/Simple/Compiler.hs, dist/build/Distribution/Simple/Compiler.p_o ) [41 of 67] Compiling Distribution.Simple.Program.HcPkg ( Distribution/Simple/Program/HcPkg.hs, dist/build/Distribution/Simple/Program/HcPkg.p_o ) [42 of 67] Compiling Distribution.Simple.InstallDirs ( Distribution/Simple/InstallDirs.hs, dist/build/Distribution/Simple/InstallDirs.p_o ) [43 of 67] Compiling Distribution.Simple.Setup ( Distribution/Simple/Setup.hs, dist/build/Distribution/Simple/Setup.p_o ) [44 of 67] Compiling Distribution.Make ( Distribution/Make.hs, dist/build/Distribution/Make.p_o ) [45 of 67] Compiling Distribution.Simple.Program.GHC ( Distribution/Simple/Program/GHC.hs, dist/build/Distribution/Simple/Program/GHC.p_o ) [46 of 67] Compiling Distribution.Simple.LocalBuildInfo ( Distribution/Simple/LocalBuildInfo.hs, dist/build/Distribution/Simple/LocalBuildInfo.p_o ) [47 of 67] Compiling Distribution.Simple.BuildPaths ( Distribution/Simple/BuildPaths.hs, dist/build/Distribution/Simple/BuildPaths.p_o ) [48 of 67] Compiling Distribution.Simple.JHC ( Distribution/Simple/JHC.hs, dist/build/Distribution/Simple/JHC.p_o ) [49 of 67] Compiling Distribution.Simple.NHC ( Distribution/Simple/NHC.hs, dist/build/Distribution/Simple/NHC.p_o ) [50 of 67] Compiling Distribution.Simple.UHC ( Distribution/Simple/UHC.hs, dist/build/Distribution/Simple/UHC.p_o ) [51 of 67] Compiling Distribution.Simple.Build.Macros ( Distribution/Simple/Build/Macros.hs, dist/build/Distribution/Simple/Build/Macros.p_o ) [52 of 67] Compiling Distribution.Simple.Build.PathsModule ( Distribution/Simple/Build/PathsModule.hs, dist/build/Distribution/Simple/Build/PathsModule.p_o ) Distribution/Simple/Build/PathsModule.hs:210:19: Warning: Pattern match(es) are non-exhaustive In a case alternative: Patterns not matched: PPC PPC64 Sparc Arm ... [53 of 67] Compiling Distribution.Simple.GHC ( Distribution/Simple/GHC.hs, dist/build/Distribution/Simple/GHC.p_o ) [54 of 67] Compiling Distribution.Simple.LHC ( Distribution/Simple/LHC.hs, dist/build/Distribution/Simple/LHC.p_o ) [55 of 67] Compiling Distribution.Simple.Hpc ( Distribution/Simple/Hpc.hs, dist/build/Distribution/Simple/Hpc.p_o ) [56 of 67] Compiling Distribution.Simple.Test ( Distribution/Simple/Test.hs, dist/build/Distribution/Simple/Test.p_o ) [57 of 67] Compiling Distribution.Simple.PreProcess ( Distribution/Simple/PreProcess.hs, dist/build/Distribution/Simple/PreProcess.p_o ) [58 of 67] Compiling Distribution.Simple.UserHooks ( Distribution/Simple/UserHooks.hs, dist/build/Distribution/Simple/UserHooks.p_o ) [59 of 67] Compiling Distribution.Simple.Bench ( Distribution/Simple/Bench.hs, dist/build/Distribution/Simple/Bench.p_o ) [60 of 67] Compiling Distribution.Simple.SrcDist ( Distribution/Simple/SrcDist.hs, dist/build/Distribution/Simple/SrcDist.p_o ) [61 of 67] Compiling Distribution.Simple.Hugs ( Distribution/Simple/Hugs.hs, dist/build/Distribution/Simple/Hugs.p_o ) [62 of 67] Compiling Distribution.Simple.Register ( Distribution/Simple/Register.hs, dist/build/Distribution/Simple/Register.p_o ) [63 of 67] Compiling Distribution.Simple.Configure ( Distribution/Simple/Configure.hs, dist/build/Distribution/Simple/Configure.p_o ) [64 of 67] Compiling Distribution.Simple.Install ( Distribution/Simple/Install.hs, dist/build/Distribution/Simple/Install.p_o ) [65 of 67] Compiling Distribution.Simple.Build ( Distribution/Simple/Build.hs, dist/build/Distribution/Simple/Build.p_o ) [66 of 67] Compiling Distribution.Simple.Haddock ( Distribution/Simple/Haddock.hs, dist/build/Distribution/Simple/Haddock.p_o ) [67 of 67] Compiling Distribution.Simple ( Distribution/Simple.hs, dist/build/Distribution/Simple.p_o ) In-place registering Cabal-1.16.0.1... Running Haddock for Cabal-1.16.0.1... Preprocessing library Cabal-1.16.0.1... Warning: The documentation for the following packages are not installed. No links will be generated to these packages: rts-1.0 Haddock coverage: 0% ( 0 / 4) in 'Paths_Cabal' 22% ( 2 / 9) in 'Distribution.TestSuite' 100% ( 3 / 3) in 'Distribution.Simple.PreProcess.Unlit' 100% ( 10 / 10) in 'Distribution.GetOpt' 14% ( 1 / 7) in 'Distribution.Compat.Exception' 40% ( 2 / 5) in 'Distribution.Compat.TempFile' 0% ( 0 / 4) in 'Distribution.Compat.CopyFile' 98% ( 40 / 41) in 'Distribution.Compat.ReadP' 44% ( 4 / 9) in 'Distribution.ReadE' 17% ( 2 / 12) in 'Distribution.Verbosity' 25% ( 1 / 4) in 'Distribution.Text' 86% ( 6 / 7) in 'Distribution.ModuleName' 40% ( 4 / 10) in 'Distribution.System' 57% ( 4 / 7) in 'Language.Haskell.Extension' 83% ( 35 / 42) in 'Distribution.Version' 67% ( 2 / 3) in 'Distribution.License' 71% ( 12 / 17) in 'Distribution.Package' 69% ( 53 / 77) in 'Distribution.Simple.Utils' 90% ( 9 / 10) in 'Distribution.Simple.Program.Types' 33% ( 3 / 9) in 'Distribution.Simple.Program.Run' 100% ( 3 / 3) in 'Distribution.Simple.Program.Ar' 100% ( 2 / 2) in 'Distribution.Simple.Program.Ld' 33% ( 1 / 3) in 'Distribution.Simple.Program.Hpc' 100% ( 4 / 4) in 'Distribution.Simple.Program.Script' 13% ( 4 / 31) in 'Distribution.Simple.Program.Builtin' 76% ( 19 / 25) in 'Distribution.Simple.Program.Db' 43% ( 34 / 79) in 'Distribution.Simple.Program' 62% ( 5 / 8) in 'Distribution.Compiler' 12% ( 7 / 58) in 'Distribution.ParseUtils' 9% ( 1 / 11) in 'Distribution.InstalledPackageInfo' 89% ( 31 / 35) in 'Distribution.Simple.PackageIndex' 25% ( 2 / 8) in 'Distribution.Simple.GHC.IPI642' 67% ( 2 / 3) in 'Distribution.Simple.GHC.IPI641' 64% ( 27 / 42) in 'Distribution.Simple.Command' 70% ( 47 / 67) in 'Distribution.PackageDescription' 44% ( 4 / 9) in 'Distribution.PackageDescription.Configuration' 32% ( 7 / 22) in 'Distribution.PackageDescription.Parse' 100% ( 3 / 3) in 'Distribution.PackageDescription.PrettyPrint' 90% ( 9 / 10) in 'Distribution.PackageDescription.Check' 60% ( 12 / 20) in 'Distribution.Simple.Compiler' 62% ( 8 / 13) in 'Distribution.Simple.Program.HcPkg' 55% ( 11 / 20) in 'Distribution.Simple.InstallDirs' 14% ( 10 / 69) in 'Distribution.Simple.Setup' 57% ( 4 / 7) in 'Distribution.Make' 14% ( 1 / 7) in 'Distribution.Simple.Program.GHC' 65% ( 13 / 20) in 'Distribution.Simple.LocalBuildInfo' 40% ( 6 / 15) in 'Distribution.Simple.BuildPaths' 43% ( 3 / 7) in 'Distribution.Simple.JHC' 71% ( 5 / 7) in 'Distribution.Simple.NHC' 14% ( 1 / 7) in 'Distribution.Simple.UHC' 50% ( 1 / 2) in 'Distribution.Simple.Build.Macros' 67% ( 2 / 3) in 'Distribution.Simple.Build.PathsModule' 50% ( 7 / 14) in 'Distribution.Simple.GHC' 50% ( 5 / 10) in 'Distribution.Simple.LHC' 71% ( 5 / 7) in 'Distribution.Simple.Hpc' 92% ( 11 / 12) in 'Distribution.Simple.Test' 38% ( 6 / 16) in 'Distribution.Simple.PreProcess' 75% ( 3 / 4) in 'Distribution.Simple.UserHooks' 100% ( 2 / 2) in 'Distribution.Simple.Bench' 92% ( 11 / 12) in 'Distribution.Simple.SrcDist' 57% ( 4 / 7) in 'Distribution.Simple.Hugs' 50% ( 4 / 8) in 'Distribution.Simple.Register' 64% ( 9 / 14) in 'Distribution.Simple.Configure' 100% ( 2 / 2) in 'Distribution.Simple.Install' 75% ( 3 / 4) in 'Distribution.Simple.Build' 33% ( 1 / 3) in 'Distribution.Simple.Haddock' 91% ( 20 / 22) in 'Distribution.Simple' Warning: Distribution.Compat.ReadP: could not find link destinations for: Distribution.Compat.ReadP.Parser Distribution.Compat.ReadP.P Warning: Distribution.ReadE: could not find link destinations for: Distribution.ReadE.ErrorMsg Warning: Distribution.Compiler: could not find link destinations for: Distribution.Compiler.classifyCompilerFlavor Warning: Distribution.PackageDescription.Parse: could not find link destinations for: Distribution.PackageDescription.Parse.TestSuiteStanza Documentation created: dist/doc/html/Cabal/index.html Installing library in /Users/ddp/Library/Haskell/ghc-7.4.1/lib/Cabal-1.16.0.1/lib Registering Cabal-1.16.0.1... Configuring cabal-install-1.16.0... Building cabal-install-1.16.0... Preprocessing executable 'cabal' for cabal-install-1.16.0... [ 1 of 65] Compiling Distribution.Client.Haddock ( Distribution/Client/Haddock.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Haddock.o ) [ 2 of 65] Compiling Distribution.Client.JobControl ( Distribution/Client/JobControl.hs, dist/build/cabal/cabal-tmp/Distribution/Client/JobControl.o ) [ 3 of 65] Compiling Distribution.Client.BuildReports.Types ( Distribution/Client/BuildReports/Types.hs, dist/build/cabal/cabal-tmp/Distribution/Client/BuildReports/Types.o ) [ 4 of 65] Compiling Distribution.Client.Dependency.Modular.Version ( Distribution/Client/Dependency/Modular/Version.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Version.o ) [ 5 of 65] Compiling Distribution.Client.Dependency.Modular.PSQ ( Distribution/Client/Dependency/Modular/PSQ.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/PSQ.o ) [ 6 of 65] Compiling Distribution.Client.Dependency.Modular.Package ( Distribution/Client/Dependency/Modular/Package.hs, 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Distribution/Client/PackageIndex.hs, dist/build/cabal/cabal-tmp/Distribution/Client/PackageIndex.o ) [14 of 65] Compiling Distribution.Client.Init.Licenses ( Distribution/Client/Init/Licenses.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Init/Licenses.o ) [15 of 65] Compiling Distribution.Client.Init.Types ( Distribution/Client/Init/Types.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Init/Types.o ) [16 of 65] Compiling Distribution.Compat.Exception ( Distribution/Compat/Exception.hs, dist/build/cabal/cabal-tmp/Distribution/Compat/Exception.o ) [17 of 65] Compiling Distribution.Client.Types ( Distribution/Client/Types.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Types.o ) [18 of 65] Compiling Distribution.Client.Init.Heuristics ( Distribution/Client/Init/Heuristics.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Init/Heuristics.o ) [19 of 65] Compiling Distribution.Client.InstallPlan ( Distribution/Client/InstallPlan.hs, dist/build/cabal/cabal-tmp/Distribution/Client/InstallPlan.o ) [20 of 65] Compiling Distribution.Client.Dependency.Types ( Distribution/Client/Dependency/Types.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Types.o ) [21 of 65] Compiling Distribution.Client.Dependency.Modular.Flag ( Distribution/Client/Dependency/Modular/Flag.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Flag.o ) [22 of 65] Compiling Distribution.Client.Dependency.Modular.Dependency ( Distribution/Client/Dependency/Modular/Dependency.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Dependency.o ) [23 of 65] Compiling Distribution.Client.Dependency.Modular.Tree ( Distribution/Client/Dependency/Modular/Tree.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Tree.o ) [24 of 65] Compiling Distribution.Client.Dependency.Modular.Index ( Distribution/Client/Dependency/Modular/Index.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Index.o ) [25 of 65] Compiling Distribution.Client.Dependency.Modular.IndexConversion ( Distribution/Client/Dependency/Modular/IndexConversion.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/IndexConversion.o ) [26 of 65] Compiling Distribution.Client.Dependency.Modular.Builder ( Distribution/Client/Dependency/Modular/Builder.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Builder.o ) [27 of 65] Compiling Distribution.Client.Dependency.Modular.Message ( Distribution/Client/Dependency/Modular/Message.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Message.o ) [28 of 65] Compiling Distribution.Client.Dependency.Modular.Log ( Distribution/Client/Dependency/Modular/Log.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency/Modular/Log.o ) [29 of 65] Compiling Distribution.Client.Dependency.Modular.Preference ( 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Distribution/Client/BuildReports/Anonymous.hs, dist/build/cabal/cabal-tmp/Distribution/Client/BuildReports/Anonymous.o ) [46 of 65] Compiling Distribution.Client.BuildReports.Upload ( Distribution/Client/BuildReports/Upload.hs, dist/build/cabal/cabal-tmp/Distribution/Client/BuildReports/Upload.o ) [47 of 65] Compiling Distribution.Client.BuildReports.Storage ( Distribution/Client/BuildReports/Storage.hs, dist/build/cabal/cabal-tmp/Distribution/Client/BuildReports/Storage.o ) [48 of 65] Compiling Distribution.Client.Win32SelfUpgrade ( Distribution/Client/Win32SelfUpgrade.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Win32SelfUpgrade.o ) [49 of 65] Compiling Distribution.Client.Init ( Distribution/Client/Init.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Init.o ) [50 of 65] Compiling Distribution.Client.Check ( Distribution/Client/Check.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Check.o ) [51 of 65] Compiling Distribution.Client.Update ( Distribution/Client/Update.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Update.o ) [52 of 65] Compiling Distribution.Client.Targets ( Distribution/Client/Targets.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Targets.o ) [53 of 65] Compiling Distribution.Client.Dependency ( Distribution/Client/Dependency.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Dependency.o ) [54 of 65] Compiling Distribution.Client.Setup ( Distribution/Client/Setup.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Setup.o ) [55 of 65] Compiling Distribution.Client.Config ( Distribution/Client/Config.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Config.o ) [56 of 65] Compiling Distribution.Client.SetupWrapper ( Distribution/Client/SetupWrapper.hs, dist/build/cabal/cabal-tmp/Distribution/Client/SetupWrapper.o ) Distribution/Client/SetupWrapper.hs:51:12: Warning: In the use of `ghcVerbosityOptions' (imported from Distribution.Simple.GHC): Deprecated: "Use the GhcOptions record instead" [57 of 65] Compiling Distribution.Client.Upload ( Distribution/Client/Upload.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Upload.o ) [58 of 65] Compiling Distribution.Client.List ( Distribution/Client/List.hs, dist/build/cabal/cabal-tmp/Distribution/Client/List.o ) [59 of 65] Compiling Distribution.Client.Configure ( Distribution/Client/Configure.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Configure.o ) [60 of 65] Compiling Distribution.Client.Fetch ( Distribution/Client/Fetch.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Fetch.o ) [61 of 65] Compiling Distribution.Client.SrcDist ( Distribution/Client/SrcDist.hs, dist/build/cabal/cabal-tmp/Distribution/Client/SrcDist.o ) [62 of 65] Compiling Distribution.Client.Unpack ( Distribution/Client/Unpack.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Unpack.o ) [63 of 65] Compiling Distribution.Client.InstallSymlink ( Distribution/Client/InstallSymlink.hs, dist/build/cabal/cabal-tmp/Distribution/Client/InstallSymlink.o ) [64 of 65] Compiling Distribution.Client.Install ( Distribution/Client/Install.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Install.o ) [65 of 65] Compiling Main ( Main.hs, dist/build/cabal/cabal-tmp/Main.o ) Linking dist/build/cabal/cabal ... Warning: No documentation was generated as this package does not contain a library. Perhaps you want to use the --executables flag. Installing executable(s) in /Users/ddp/Library/Haskell/ghc-7.4.1/lib/cabal-install-1.16.0/bin Updating documentation index /Users/ddp/Library/Haskell/doc/index.html

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ANN: cabal-install-1.16.0 (and Cabal-1.16.0.1)
by Johan Tibell 09 Oct '12

09 Oct '12

On the behalf of the many contributors to cabal, I'm proud to present cabal-install-1.16.0. This release contains almost a year worth of patches. Highlights include: * Parallel installs (cabal install -j) * Several improvements to the dependency solver. * Lots of bugfixes We're also simultaneously releasing Cabal-1.16.0.1, which address a few bugs. To install: cabal update cabal install cabal-install-1.16.0 Cabal-1.16.0.1 Complete list of changes in cabal-install-1.16.0: * Bump cabal-install version number to 1.16.0 * Extend the unpack command for the .cabal file updating * On install, update the .cabal file with the one from the index * Make compatible with `network-2.4` API * Update ZLIB_VER in bootstrap.sh for ghc-7.6 compatibility * cabal-install.cabal: add Distribution.Client.JobControl and Distribution.Compat.Time * Adapt bootstrap.sh to ghc-7.6 changes * Move comment that was missed in a refactoring * cabal-install: Adapt for GHC 7.6 * Ensure that the cabal-install logfile gets closed * Make cabal-install build with Cabal-1.16. * Initialise the 'jobs' config file setting with the current number of CPU cores. * Update version bounds for directory. * Update bootstrap.sh to match platform 2012.2.0.0 * Relax dependency on containers. * Bump versions. * Better output for parallel install. * Fix warnings. * Remove 'tryCachedSetupExecutable'. * Redundant import. * Use a lock instead of 'JobControl 1'. * Comments, cosmetic changes. * Implement the setup executable cache. * Add the missing JobControl module * Fix missing import after merge of par build patches * Fix impl of PackageIndex.allPackagesByName * Drop the "ghc-options: -rtsopts" on cabal-install. We do not need it. * Parallelise the install command This is based on Mikhail Glushenkov's patches. * InstallPlan: Add a Processing package state. * Add a '-j' flag for the 'install' command. * Add -threaded and -rtsopts to cabal-install's ghc-options. * Fix typos. * Fix warnings. * 80-col violation. * Spelling. * Fix warnings. * Extended a comment. * Force the log for the error to be printed in parallel with the complete trace. * Remove goal choice nodes after reordering is completed. * Make modular solver handle manual flags properly. * Store manual flag info in search tree. * Maintain info about manual flags in modular solver. * Fix cabal-install build. * Merge pull request #6 from pcapriotti/master * Adapt to change in GHC package db flags. * Merge pull request #1 from iustin/master * Add support for Apache 2.0 license to cabal-install * Handle test and bench stanzas without dependencies properly in modular solver. * Updated repo location in cabal files. * last-minute README changes * updated copyright year for Duncan * updated changelog * added deepseq to bootstrap.sh * handling the solver options properly in config file * handling the "optimization" option properly in config file * Update cabal-install bootstrap.sh * treat packages that are unknown no longer as an "internal error" in modular solver * minor wording change when printing install plans * no longer pre-filter broken packages for modular solver * for empty install plans, print the packages that are installed * make the reinstall check less noisy * disable line-wrapping for solver debug output * adding a solver flag for shadowing of installed packages * adding the possibility for index-disabled packages * choose default solver based on compiler version * Added a comment * Use the new --package-db flag stuff in cabal-install * head cabal-install requires head Cabal * Fix ticket #731 * Add brief description of PVP to cabal init generated .cabal files * Bump versions to 1.15 and 0.15 This is the head branch, the 1.14.x and 0.14.x are in the 1.14 branch. * init: guess at filling in deps in the build-depends: field * init: see whether source directory 'src' exists. * init: improve prompt: enclose y/n in parens * init: improve prompt: 'homepage' field is not for repos. * bootstrap with --global should still respect $PREFIX * Update cabal-install boostrap.sh package versions * Fix 'cabal configure --enable-{tests,benchmarks}'. 'cabal configure' was not adding optional stanza constraints when checking dependencies, causing '--enable-{tests,benchmarks}' to be silently ignored. * added missing error message * Don't try to run test suites where none exist. * Fixed non-exhaustive pattern matches with new InstallOutcome. * Automatically run test suites when invoked with 'cabal install --enable-tests'. Do not install if tests fail. * make test and bench available as user constraints * let --reinstall imply --force-reinstalls for targets * stanza support in modular solver * show optional stanzas when printing install plans * Added a missing case. * Enable tests and benchmarks in cabal-install without modifications to the Cabal library. * Don't build benchmarks, even if installing benchmark dependencies. * Update types in modular dependency solver to compile with new test/benchmark dependency constraints. * Handle test and benchmark dependencies through the resolver properly. * updating dependencies in bootstrap.sh * fix compilation with ghc-7.4 * Added a comment. * removing trailing whitespace * removing datatype contexts * Now require mtl-2 Complete list of changes in Cabal-1.16.0.1: * Bump Cabal version number to 1.16.0.1 * Fix failing test * Do not pass -XHaskell98 to older compilers (fixes #1016) * don't test --disable-library-vanilla for now * Fix logic for building dynamic executables with TemplateHaskell * Fix the logic for building profiled executables with TemplateHaskell. * add test for non-vanilla profiling and dynamic builds with Template Haskell * Build Setup executables without HPC. Fixes #1012. * Make 'viewAsFieldDescr' a total function. Cheers, Johan & Bryan

12 17

Re: [Haskell-cafe] Long pauses / idle time in a Haskell TCP server
by Jamie Turner 09 Oct '12

09 Oct '12

> I'm seeing long pauses in a server based on the 'scalable-server' > package from Hackage, version 0.2.2 [1]. It normally performs very > well, about 100-150 micro-secs client latency over the loopback > interface, but a fair number of requests are much slower, 38-40 > milli-secs, making the mean latency and throughput quite bad. Hi Alex--author of scalable-server here. 38ms sounds like Nagle's algorithm. (http://en.wikipedia.org/wiki/Nagle's_algorithm) In short, the socket is waiting on sending a small amount of data to see if the application wants to send more data. If so, the kernel can repack the data together so that it all can be switched in one TCP packet. You need to set NoDelay (TCP_NODELAY) if you want to disable this behavior; scalable-server doesn't currently have a flag to configure this, but I'm open to pull requests! (Also, are you using hackage scalable-server, or the "new" scalable server based on conduit on github? I'd recommend switching to the github version if not. A few key bugs exist in the older implementation.) - Jamie

2 1

ghc-mtl, hint, mueval for ghc-7.6 ?
by Johannes Waldmann 08 Oct '12

08 Oct '12

While porting some code to 7.6, I'm stuck here: Preprocessing library ghc-mtl-1.0.1.1... [1 of 1] Compiling Control.Monad.Ghc ( Control/Monad/Ghc.hs, dist/build/Control/Monad/Ghc.o ) Control/Monad/Ghc.hs:29:48: No instance for (DynFlags.HasDynFlags Ghc) this seems to block hint and mueval. Is there a known workaround for this problem, or a sugggested replacement package? Thanks - J.W.

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Panic loading network on windows (GHC 7.6.1)
by JP Moresmau 08 Oct '12

08 Oct '12

Hello, I've installed Cabal and cabal-install 1.16 (which required network) on a new GHC 7.6.1 install and everything went well, except now when building a package requiring network I get: Loading package network-2.4.0.1 ... ghc.exe: Unknown PEi386 section name `.idata $4' (while processing: c:/ghc/ghc-7.6.1/mingw/lib\libws2_32.a) ghc.exe: panic! (the 'impossible' happened) (GHC version 7.6.1 for i386-unknown-mingw32): loadArchive "c:/ghc/ghc-7.6.1/mingw/lib\\libws2_32.a": failed I have done something wrong while building network on my Windows XP machine? What can I check? Thanks! -- JP Moresmau http://jpmoresmau.blogspot.com/

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Long pauses / idle time in a Haskell TCP server
by Alex Iliev 08 Oct '12

08 Oct '12

Hello, I'm seeing long pauses in a server based on the 'scalable-server' package from Hackage, version 0.2.2 [1]. It normally performs very well, about 100-150 micro-secs client latency over the loopback interface, but a fair number of requests are much slower, 38-40 milli-secs, making the mean latency and throughput quite bad. The server is a simple version of a memory cache, with operations to "put" a key-value mapping, and to "get" the value for a key, using a data map. I've tried with the strict versions of 'unordered-containers' and the 'containers' package for the data map implementation, with similar results. I've tried it with ghc 7.4.1 and with 7.6.1 with similar results. Runtime info I got shows: - GC report: GC time is much less than the total time of the slow responses, so does not explain them. - CPU profile: Idle time is very high, and would explain the slow responses. By idle time I mean the part of wall time which is not included in the profile report's "total time". For example, when running a test for 5 minutes, the profile report has total time = 0.05 secs. 'top' output is consistent - quite low CPU usage during such a test. Apart from this there is nothing notable in the profile, most time is spent in the network input and output processing (network-enumerator etc.). One observation is that the pauses seem correlated with overwriting entries in the data map. If I'm mostly adding new keys (as well as reading), the throughput is much better, and the idle time in the CPU profile is lower (though the time spent in GC increases a lot). I've removed all concurrency from the program (including my version of scalable-server) to eliminate that factor, but the problem persists. I tried it on two fairly different Linux machines, with similar results. The client I use to benchmark is a simple C program, so I don't suspect it of causing the pauses. Looking at the timestamps on the network traffic confirms that the pauses are at the server. Any idea what might be causing the idle time? The long pauses are consistently 38-40ms, maybe that points to some aspect of CPU scheduling, leaving the program idle for some time? I can put the code on github if it would help. Many thanks! Alex [1] http://hackage.haskell.org/package/scalable-server-0.2.2

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ANNOUNCE: test-framework-golden-1.1
by Roman Cheplyaka 08 Oct '12

08 Oct '12

I am glad to announce the first public release of test-framework-golden — a golden testing library. Hackage: http://hackage.haskell.org/package/test-framework-golden GitHub: https://github.com/feuerbach/test-framework-golden Golden tests are similar to unit tests (as implemented in HUnit), but the idea is to store the expected result in files (called «golden» files). I was introduced to the idea of golden testing by Bohdan Vlasyuk at ZuriHac in 2010. Since then I've discovered that this is a nice approach and it is already used in variety of projects (e.g. ghc, haddock). Surprisingly, not much is written about golden testing, and I've been unable to find any golden testing libraries for Haskell or any other programming language. Every project has its own ad-hoc implementation in Haskell/Python/Shell/etc. The closest match on the market is Simon Michael's shelltestrunner. But to use it you have to expose the tested functionality via command line, which may be inconvenient. So this is my attempt at a general golden testing library. It consists of two modules. Test.Golden has a simple interface that helps you get started very quickly. Test.Golden.Advanced provides a very generic testing function that you can use to implement the testing system you dream about. The library is integrated with test-framework, so you can use golden tests in addition to SmallCheck/QuickCheck/HUnit tests. In future there's a plan to support some golden test management capabilities. Roman

5 14

a parallel mapM?
by Greg Fitzgerald 07 Oct '12

07 Oct '12

I'm new to concurrent programming in Haskell. I'm looking for a drop-in replacement for 'mapM' to parallelize a set of independent IO operations. I hoped 'mapConcurrently' might be it, but I need something that will only spawn as many threads as I have CPUs available [1]. I also tried Control.Parallel.Strategies [2]. While that route works, I had to use unsafePerformIO. Considering that IO is for sequencing effects and my IO operation doesn't cause any side-effects (besides hogging a file handle), is this a proper use of unsafePerformIO? Attempt 1 -------------- import System.Process(readProcess) import Control.Concurrent.Async(mapConcurrently) main :: IO [String] main = mapConcurrently (\n -> readProcess "echo" ["test: " ++ show n] "") [0..1000] $ ghc --version The Glorious Glasgow Haskell Compilation System, version 7.6.1 $ runghc test.hs test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: runInteractiveProcess: pipe: Too many open files test.hs: echo: createProcess: resource exhausted (Too many open files) Attempt 2 -------------- import System.Process(readProcess) import Control.Parallel.Strategies(parMap, rpar) import System.IO.Unsafe(unsafePerformIO) main :: IO [String] main = myMapConcurrently (\n -> readProcess "echo" ["test: " ++ show n] "") [0..1000] where myMapConcurrently f = return . parMap rpar (unsafePerformIO . f) $ runghc test.hs > /dev/null && echo Success Success Thanks, Greg

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Cabal dependencies
by José Lopes 06 Oct '12

06 Oct '12

Hello, I'm trying to understand Cabal dependencies. Why does the following situation happen? # cabal install xmobar --dry-run Resolving dependencies... In order, the following would be installed: parsec-3.1.3 (reinstall) changes: mtl-2.1.1 -> 2.0.1.0 xmobar-0.15 (new package) Warning: The following packages are likely to be broken by the reinstalls: texmath-0.6.1.1 regex-tdfa-1.1.8 Unixutils-1.50 network-2.4.0.1 HTTP-4000.2.5 network-2.3.0.14 sendfile-0.7.6 happstack-server-7.0.7 happstack-hsp-7.1.0 happstack-7.0.0 hslogger-1.1.5 citeproc-hs-0.3.4 acid-state-0.6.4 HTTP-4000.2.3 ltk-0.12.1.0 json-0.5 highlighting-kate-0.5.1 Use --force-reinstalls if you want to install anyway. Best regards, José -- José António Branquinho de Oliveira Lopes Instituto Superior Técnico Technical University of Lisbon

4 8

Am I the only one having problems with RWH?
by Janek S. 06 Oct '12

06 Oct '12

I began learning Haskell 9 months ago. I still consider myself a beginner, but I'm progressing towards more advanced concepts. I read scientific papers (simpler ones) and books about Haskell and functional programming. Right now I'm reading Pearls of Functional Algorithm Design, Introduction to Functional Programming, Implementation of Functional Programming Languages and Real World Haskell. RWH is causing me a lot of trouble though. This leads me to frustration because book covers rather basic material. I just spent another 1,5 hour reading chapter 10 again and trying to understand how presented parsing functions work. Even if I am barely able to grasp what is going on I feel that I wouldn't know how to write such code by myself. Am I the only one having such problems with RWH? Jan

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