Hi. This example is taken from the Cabal documentation: Name: TestPackage ... Library Build-Depends: HUnit Exposed-Modules: A, B, C Executable program1 Main-Is: Main.hs Hs-Source-Dirs: prog1 Other-Modules: A, B Executable program2 Main-Is: Main.hs Hs-Source-Dirs: prog2 Other-Modules: A, C, Utils Here I see a small problem. Why should I explicitly declare modules from the library that are used in the executables? I would like to do, instead ... Executable program1 Main-Is: Main.hs Hs-Source-Dirs: prog1 build-depends: TestPackage Executable program2 Main-Is: Main.hs Hs-Source-Dirs: prog2 build-depends: TestPackag Other-Modules: Utils I tried this, but configuration fails, since Cabal does not find the TestPackage. It is true that it does not yet exists, but we are going to build it! Should I fill a feature request ticket, or this is how it is supposed to work? Thanks Manlio