Hello fellow hackers. Here is a helpful package I wrote to ease the development of projects using cabal. It includes a :cabalset ghci command to set ghci options for your project, and a cabal-ghci executable to launch ghci with those options. Do you get errors when loading your project into ghci? Prelude> a ← return 1 <interactive>:1:3: Not in scope: `←' Prelude> :load Main Could not find module `Main': it is not a module in the current program, or in any known package. cabalset fixes these problems for you. Prelude> :cabalset :set "-i/home/atnnn/up1/src/dist/build/autogen" :set "-i/home/atnnn/up1/src/web" :set "-XUnicodeSyntax" :set "-Wall" Prelude> a ← return 1 <interactive>:1:12: Warning: Defaulting the following constraint(s) to type `Integer' (Num t0) arising from the literal `1' Prelude> :load Main Ok, modules loaded: Main, Application, Handlers. This works from any sub-directory of your project and accepts the following arguments: -fflag enable flag -f-flag disable flag exec load options for the exec executable To install: $ cabal update $ cabal install cabal-ghci $ cat >> ~/.ghci :m + Distribution.Dev.Interactive :def cabalset cabalSet :cabalset :m - Distribution.Dev.Interactive ^D Etienne Laurin