Sat Dec 15 11:36:50 PST 2007 Duncan Coutts * Make all command line flags and flag collection types monoids And specify command flags in a way that allows converting from or two strings. So not only can we parse command lines into the various flag types, we can convert back. This is crucial in cabal-install so that we can call Setup.hs scripts with all the various args, and override certain flags in a typed way rather than just representing them all as strings. M ./Distribution/Make.hs -15 +16 M ./Distribution/Simple.hs -45 +43 M ./Distribution/Simple/Build.hs -6 +6 M ./Distribution/Simple/Command.hs -36 +122 M ./Distribution/Simple/Configure.hs -27 +38 M ./Distribution/Simple/GHC.hs -6 +6 M ./Distribution/Simple/Haddock.hs -14 +18 M ./Distribution/Simple/Install.hs -3 +5 M ./Distribution/Simple/Register.hs -14 +15 M ./Distribution/Simple/Setup.hs -442 +875 M ./Distribution/Simple/SrcDist.hs -2 +4