On Mon, Mar 9, 2015 at 8:20 PM, Rustom Mody <rustompmody@gmail.com> wrote:

Under -fwarn-type-defaults:
says

Have the compiler warn/inform you where in your source the Haskell defaulting mechanism for numeric types kicks in.

Wheres the numeric here?

In GHCi, the type defaulting mechanism is extended beyond numerics. See https://downloads.haskell.org/~ghc/7.8.2/docs/html/users_guide/interactive-evaluation.html#extended-default-rules.