I am trying to migrate some old code to cabal. It uses c2hs. Now I wasn't sure I had c2hs installed so I ran cabal anyway. 1. Why isn't configure telling me where c2hs is? It tells me where hsc2hs is! 2. Why is cabal telling me it can't find a source when the source is present? Thanks, Dominic. Here's ping.cabal: Name: Ping Version: 0.0 License: BSD3 Author: Dominic Steinitz Synopsis: The Haskell equivalent of ping Executable: ping Main-Is: test.hs Other-modules: IP_ICMP.chs When I run ./Setup configure, I didn't see any message saying whether c2hs was installed and when I run ./Setup build I get the following: [dom@tility ping]$ ./Setup build Preprocessing executables for Ping-0.0... can't find source for IP_ICMP.chs in ["."] But the source is there: [dom@tility ping]$ ls codes.hs dist/ ip_icmp.h ping.cabal Setup* Setup.hs test.hs CVS/ IP_ICMP.chs Makefile ping.cabal~ Setup.hi Setup.o