Automatically configure when running haddock
Automatically configure when running haddock

Fixes #2275

rimmington/cabal,thomie/cabal,Heather/cabal,x-y-z/cabal,ghc-android/cabal,enolan/cabal,edsko/cabal,eric-stanley/cabal,martinvlk/cabal,x-y-z/cabal,kolmodin/cabal,headprogrammingczar/cabal,gridaphobe/cabal,themoritz/cabal,sopvop/cabal,lukexi/cabal,plow-technologies/cabal,gbaz/cabal,edsko/cabal,headprogrammingczar/cabal,themoritz/cabal,enolan/cabal,ian-ross/cabal,mightybyte/cabal,ghc-android/cabal,rimmington/cabal,gridaphobe/cabal,Peaker/cabal,trskop/cabal,themoritz/cabal,trskop/cabal,mightybyte/cabal,gbaz/cabal,thoughtpolice/cabal,beni55/cabal,Heather/cabal,fugyk/cabal,valderman/cabal,garetxe/cabal,randen/cabal,eric-stanley/cabal,mydaum/cabal,garetxe/cabal,thoughtpolice/cabal,valderman/cabal,plow-technologies/cabal,Peaker/cabal,thomie/cabal,bennofs/cabal,anton-dessiatov/cabal,mmakowski/cabal,lukexi/cabal,mydaum/cabal,fugyk/cabal,kolmodin/cabal,anton-dessiatov/cabal,randen/cabal,mmakowski/cabal,ian-ross/cabal,sopvop/cabal,sopvop/cabal,bennofs/cabal,beni55/cabal,martinvlk/cabal