from http://aur.archlinux.org/packages.php?ID=23087 kjslag wrote: I can't compile with profiling. I'm not sure if that's a bug. $ cat test.hs import Data.Tuple.HT main = print $ mapFst id (1,1) $ ghc -prof -auto-all -v test.hs Glasgow Haskell Compiler, Version 7.0.3, for Haskell 98, stage 2 booted by GHC version 7.0.2 Using binary package database: /usr/lib/ghc-7.0.3/package.conf.d/package.cache wired-in package ghc-prim mapped to ghc-prim-0.2.0.0-d9df11f804556f362beb0ea4e67261ba wired-in package integer-gmp mapped to integer-gmp-0.2.0.3-298c59ba68b7aaa7e76ae5b1fe5e876e wired-in package base mapped to base-4.3.1.0-c33a1741503ded8a0170884e8a2e4fa2 wired-in package rts mapped to builtin_rts wired-in package template-haskell mapped to template-haskell-2.5.0.0-957162165c2e6480a35f6d14f7e5220f wired-in package dph-seq not found. wired-in package dph-par not found. Hsc static flags: -fscc-profiling -static *** Chasing dependencies: Chasing modules from: *test.hs test.hs:1:8: Could not find module `Data.Tuple.HT': Perhaps you haven't installed the profiling libraries for package `utility-ht-0.0.7'? locations searched: Data/Tuple/HT.hs Data/Tuple/HT.lhs /usr/lib/ghc-7.0.3/site-local/utility-ht-0.0.7/Data/Tuple/HT.p_hi *** Deleting temp files: Deleting: *** Deleting temp dirs: Deleting: --- If you no longer wish to receive notifications about this package, please go the the above package page and click the UnNotify button.