Hello, I am having trouble loading the unix package. I am not sure what I am doing wrong. I have just installed it from hackage. As you can see below, the error message complains about an unknown symbol 'lstat', which is not in libc. [1]$ ghci -package unix ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.6, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. Loading package base ... linking ... done. ghc-6.6: /home/frederik/lib/unix-2.0/ghc-6.6/HSunix-2.0.o: unknown symbol `lstat' Loading package unix-2.0 ... linking ... ghc-6.6: unable to load package `unix-2.0' [1]$ nm -D /lib/libc-2.5.so | grep -w lstat [1]$ This is an unstable Debian installation. When I try the same on a system with ghc 6.4.2 and unix-1.0, there is no problem. That system has libc 2.3.6, which also lacks an 'lstat' symbol. Thank you for your help. Frederik