*Bump*
Especially as there is now a version of the Haskell Platform based
around GHC-7.4.1, I would appreciate it if this behaviour could be
clarified.
On 20 April 2012 15:25, Ivan Lazar Miljenovic
Has there been a change in the behaviour/requirement of TypeSynonymInstances as of GHC-7.4.1? (Not sure if this behaviour occurs with 7.2.1 as I don't have it installed)
I had an instance for String for a class which ghc accepted whilst using FlexibleInstances; however, when trying to load it in 7.0.* it stated that TypeSynonymInstances was needed (which I forgot to add since it didn't seem to need it).
All I could find in the release notes was that as of 7.2.1, both extensions were needed, not that one implied the other: http://www.haskell.org/ghc/docs/7.4.1/html/users_guide/release-7-2-1.html#id...
Is this behaviour deliberate, or a bug?
-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com http://IvanMiljenovic.wordpress.com
-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com http://IvanMiljenovic.wordpress.com