Dear GHC hackers, I would like to experiment with the GHC API. However I get link errors when using it. For example: --------------------------------------------------------------------- $ ghci -package ghc ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.6, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. Loading package base ... linking ... done. Loading package template-haskell ... linking ... done. Loading package readline-1.0 ... linking ... done. Loading package unix-1.0 ... linking ... done. Loading package Cabal-1.1.6 ... linking ... done. Loading package regex-base-0.71 ... linking ... done. Loading package regex-posix-0.71 ... linking ... done. Loading package regex-compat-0.71 ... linking ... done. Loading package haskell98 ... linking ... done. ghc-6.6: /usr/lib/ghc-6.6/HSghc.o: unknown symbol `Cabalzm1zi1zi6_DistributionziPackage_a_closure' Loading package ghc-6.6 ... linking ... ghc-6.6: unable to load package `ghc-6.6' --------------------------------------------------------------------- I also get this when compiling for example the following module testGHC.hs: --------------------------------------------------------------------- module Main where import qualified GHC import DynFlags (defaultDynFlags) main = GHC.defaultErrorHandler defaultDynFlags $ putStrLn "Hello World" --------------------------------------------------------------------- --------------------------------------------------------------------- $ ghc -package ghc --make testGHC [1 of 1] Compiling Main ( testGHC.hs, testGHC.o ) Linking testGHC ... /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `r6iZ_info': : undefined reference to `Cabalzm1zi1zi6_LanguageziHaskellziExtension_optional_info' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `s6r9_info': : undefined reference to `Cabalzm1zi1zi6_LanguageziHaskellziExtension_zdwshowsPrec_info' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `s6sJ_info': : undefined reference to `Cabalzm1zi1zi6_DistributionziCompiler_lvl31_info' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `s6sN_info': : undefined reference to `Cabalzm1zi1zi6_DistributionziCompiler_zddEq_closure' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `s6ID_0_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziCompiler_polyzugo_info' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o): In function `s6IG_0_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziCompiler_polyzugo1_info' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o):(.rodata+0x0): undefined reference to `Cabalzm1zi1zi6_LanguageziHaskellziExtension_optional_closure' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o):(.rodata+0x1cc): undefined reference to `Cabalzm1zi1zi6_LanguageziHaskellziExtension_zdwshowsPrec_closure' /usr/lib/ghc-6.6/libHSghc.a(HeaderInfo.o):(.rodata+0x1dc): undefined reference to `Cabalzm1zi1zi6_DistributionziCompiler_lvl31_closure' /usr/lib/ghc-6.6/libHSghc.a(PackageConfig.o): In function `s23t_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s77S_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s79E_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s7i7_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s7vI_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s7yi_info': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_zeze_info' /usr/lib/ghc-6.6/libHSghc.a(Packages.o): In function `s7GC_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Linker.o): In function `s8TZ_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Linker.o): In function `s8Vv_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' /usr/lib/ghc-6.6/libHSghc.a(Finder.o): In function `s7l2_1_alt': : undefined reference to `Cabalzm1zi1zi6_DistributionziPackage_a_closure' collect2: ld returned 1 exit status --------------------------------------------------------------------- I would like to know what is causing this and how I can fix it? Also, should I file a bugreport? Greetings, Bas van Dijk