Hi all, I have two package A and B, and B depend A. I use below code snippets in package A: ------------------------------> code start <------------------------------ ... import Paths_manatee_ircclient import System.FilePath ... dir <- getDataDir let imagePath imageName = dir "icons" (imageName ++ ".png") ... ------------------------------> code end <------------------------------ Anyway, package A compile fine, but when i compile package B, i got below error: ------------------------------> error start <------------------------------ Linking dist/build/manatee/manatee ... /home/andy/.cabal/lib/manatee-ircclient-0.0.1/ghc-6.12.3/libHSmanatee-ircclient-0.0.1.a(Smile.o): In function `s6sP_info': (.text+0x3bea): undefined reference to `manateezmircclientzm0zi0zi1_Pathszumanateezuircclient_getDataDir3_closure' /home/andy/.cabal/lib/manatee-ircclient-0.0.1/ghc-6.12.3/libHSmanatee-ircclient-0.0.1.a(Smile.o): In function `s6sP_info': (.text+0x3bf0): undefined reference to `manateezmircclientzm0zi0zi1_Pathszumanateezuircclient_getDataDir2_closure' /home/andy/.cabal/lib/manatee-ircclient-0.0.1/ghc-6.12.3/libHSmanatee-ircclient-0.0.1.a(Smile.o): In function `s6Uf_info': (.text+0x560f): undefined reference to `__stginit_manateezmircclientzm0zi0zi1_Pathszumanateezuircclient_' /home/andy/.cabal/lib/manatee-ircclient-0.0.1/ghc-6.12.3/libHSmanatee-ircclient-0.0.1.a(Smile.o): In function `r5Mp_closure': (.data+0x9d8): undefined reference to `manateezmircclientzm0zi0zi1_Pathszumanateezuircclient_getDataDir3_closure' /home/andy/.cabal/lib/manatee-ircclient-0.0.1/ghc-6.12.3/libHSmanatee-ircclient-0.0.1.a(Smile.o): In function `r5Mp_closure': (.data+0x9e0): undefined reference to `manateezmircclientzm0zi0zi1_Pathszumanateezuircclient_getDataDir2_closure' collect2: ld returned 1 exit status cabal: Error: some packages failed to install: manatee-0.0.1 failed during the building phase. The exception was: ExitFailure 1 ------------------------------> error end <------------------------------ How to fix above error? Thanks! -- Andy Below is .cabal file for package A: ------------------------------> A.cabal start <------------------------------ name: manatee-ircclient version: 0.0.1 Cabal-Version: >= 1.6 license: GPL-3 license-file: LICENSE copyright: (c) 2009 ~ 2010 Andy Stewart synopsis: IRC client extension for Manatee. description: manatee-ircclient is IRC client extension for Manatee (Haskell/Gtk+ Integrated Live Environment) author: Andy Stewart maintainer: Andy Stewart stability: provisional category: Development, Other tested-with: GHC==6.12.3 build-type: Simple extra-source-files: Setup.lhs data-dir: icons data-files: angry.png confused.png crying.png embarrassed.png inlove.png kiss.png sleepy.png sad.png laugh.png smile.png surprised.png tired.png tongue.png whistling.png wink.png Library build-depends: base >= 4 && < 5, manatee-core >= 0.0.1, dbus-client >= 0.3 && < 0.4, stm >= 2.1.2.0, containers >= 0.3.0.0, gtk-serialized-event >= 0.11.0, gtk >= 0.11.0, text >= 0.7.1.0, bytestring >= 0.9.1.5, dbus-core, template-haskell, gtksourceview2 >= 0.11.0, unix >= 2.4.0.0, network, groom, fastirc >= 0.2.0, split >= 0.1.2, nano-md5 >= 0.1.2, filepath, regex-posix >= 0.94.1, array >= 0.3.0.0, GoogleTranslate >= 0.0.3, utf8-string, mtl, Cabal exposed-modules: Manatee.Extension.IrcClient Manatee.Extension.IrcClient.Types Manatee.Extension.IrcClient.DBus Manatee.Extension.IrcClient.Daemon Manatee.Extension.IrcClient.HighlightNick Manatee.Extension.IrcClient.IrcBuffer Manatee.Extension.IrcClient.IrcView Manatee.Extension.IrcClient.Smile other-modules: extensions: ghc-options: -O -fwarn-unused-matches -fwarn-unused-binds -fwarn-unused-imports -fwarn-overlapping-patterns -fwarn-duplicate-exports -threaded -fwarn-unrecognised-pragmas -fwarn-hi-shadowing Executable manatee-irc-daemon main-is: Main.hs ghc-options: -threaded ------------------------------> A.cabal end <------------------------------