hallgren bef7f8b053 Setup.hs: improved langs=... option ...

Instead of just giving an explicit list of languages to compile, you can
now also add and remove languages from the default list by using langs=+...
or langs=-...

Examples:

	cabal build langs=Eng,Swe,Ger   -- as before, compile the given 3 langs
	cabal build langs=-Fin          -- use default languages, but omit Fin 
	cabal build langs=+Urd		-- use default languages + Urd

("cabal build ..." is the same as "runhaskell Setup.hs build ...")

2010-11-30 16:49:15 +00:00

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