Mention that the user has to import GHC.Exts for Constraint
authorJoachim Breitner <mail@joachim-breitner.de>
Sun, 24 Nov 2013 19:38:08 +0000 (19:38 +0000)
committerJoachim Breitner <mail@joachim-breitner.de>
Sun, 24 Nov 2013 19:38:08 +0000 (19:38 +0000)
commit5c904ba055147e0a71d5b200c8886ef0b1a47794
tree5a18e1034bc2fe5486a076dfc0e15e8607e5c249
parentf438464754ad9abd885acf3529606ca57945edc2
Mention that the user has to import GHC.Exts for Constraint

(required judging from confusion on #haskell right now.)
docs/users_guide/glasgow_exts.xml