Re: -O vs. -O2

2010-05-07 Thread Simon Marlow
On 05/05/2010 12:24, Roman Leshchinskiy wrote: Whenever I do cabal sdist on one of my projects, I get this warning: Distribution quality warnings: 'ghc-options: -O2' is rarely needed. Check that it is giving a real benefit and not just imposing longer compile times on your users. This finally

Re: segmentation fault in Gtk2Hs callbacks

2010-05-07 Thread Simon Marlow
On 06/05/2010 09:15, Axel Simon wrote: Good morning, I'm looking at ticket http://hackage.haskell.org/trac/ghc/ticket/4038 and wonder who is to blame: - this segmentation fault occurs in Gtk2Hs' callbacks (i.e. a Haskell function pointer is being passed to C land) and in a signal (where a

RE: strong type derivation in ghc 6.12 compared to 6.12

2010-05-07 Thread Simon Peyton-Jones
See my comment http://hackage.haskell.org/trac/ghc/ticket/4028#comment:4 Simon | -Original Message- | From: glasgow-haskell-users-boun...@haskell.org [mailto:glasgow-haskell-users- | boun...@haskell.org] On Behalf Of Seyed Hosein Attarzadeh Niaki | Sent: 27 April 2010 20:41 | To: