The message I actually receive is:

runhaskell Setup.lhs build ....
.....

./Haq.hs:6:7:
      Could not find module `System.Environment':
          it is a member of a package base, which is hidden

BTW I haven't actually checked source in via darcs due to cygwin $PATH problems ...

vasya

On Nov 29, 2007 12:08 AM, Galchin Vasili < vigalchin@gmail.com> wrote:
Hello,

    I trying to get a library to build ... I am following  the instructions  in http://en.wikibooks.org/wiki/Haskell/Packaging. Under  the "Build your project" section in this web page, when I try to do an actual build (runhaskell Setup.lhs build), the imported module System.Environment cannot be found. I suspect that there is a "cygwin" ("Linux/Posix") environment variable that needs to be set to point to the Haskell libraries/packages. ??

Kind regards, Vasya