foo.cabal

Name:                projname
Version:             0.1
Synopsis:            Project Synopsis Here
Description:         Project Description Here
License:             AllRightsReserved
Author:              Author
Maintainer:          maintainer@example.com
Stability:           Experimental
Category:            Web
Build-type:          Simple
Cabal-version:       >=1.2

Flag old-base
  default: False
  manual: False

Executable projname
  hs-source-dirs: src
  main-is: Tutorial.lhs

  Build-depends:
    bytestring                >= 0.9.1   && < 0.11,
    MonadCatchIO-transformers >= 0.2.1   && < 0.4,
    mtl                       >= 2       && < 3,
    snap                      >= 0.11    && < 0.14,
    snap-core                 >= 0.9     && < 0.11,
    snap-server               >= 0.9     && < 0.11

  if flag(old-base)
    build-depends:
      base                      >= 4        && < 4.4,
      lens                      >= 3.7.6    && < 3.8
  else
    build-depends:
      base                      >= 4.4      && < 5,
      lens                      >= 3.7.6    && < 4.2

  if impl(ghc >= 6.12.0)
    ghc-options: -threaded -Wall -fwarn-tabs -funbox-strict-fields -O2
                 -fno-warn-unused-do-bind
  else
    ghc-options: -threaded -Wall -fwarn-tabs -funbox-strict-fields -O2