Hi, I think the problem with readline on Mac OS X might have been an re-occurring one. Browsing through the list archive for the past few months, however, I have not found much discussion about it. So I'd still raise the question again.. I am trying to have GHCi load a program which uses the util package. I noticed, on the GHC download page, that GNU readline has to be installed separately, so I compiled and installed it. However, GHCi says: Loading package util ... linking ... /usr/local/lib/ghc-6.0/HSutil.o: unknown symbol `___stginit_SystemziConsoleziReadline_' ghc-6.0: panic! (the `impossible' happened, GHC version 6.0): can't load package `util' Anyone knows what the problem might be? I also noticed some changes in the CVS log addressing the filename conflict of HSreadline. Could that be related? (Also, the compiled libreadline.dylib was installed in /usr/local/lib. For some reason, GHCi was not able to locate it, so I added a symbolic link under /usr/lib. I don't know whether I pointed GHCi to the wrong library.) Thank you very much. sincerely, Shin-Cheng Mu