RE: Deriving regression or bad code?

2010-04-12 Thread Simon Peyton-Jones
It's really a bug. I've fixed it in my tree, but I'm at 2.8 and don't have time to validate etc. So I'm doubtful that I'll be in time to get a fix into 6.12.1, alas. Well, maybe I can build a patch and send it to Simon/Ian for testing. I'll try to do that if it's important to you. it's bit

Re: Deriving regression or bad code?

2010-04-12 Thread Ron Alford
I was getting a similar error with standalone deriving (already attached to that bug), but I didn't try it through-out. I'll let you know how it goes. -Ron On Mon, Apr 12, 2010 at 6:01 AM, Simon Peyton-Jones simo...@microsoft.com wrote: It's really a bug. I've fixed it in my tree, but I'm at

RE: Deriving regression or bad code?

2010-04-12 Thread Simon Peyton-Jones
The standalone deriving decl you need is the one for (Data (a :+: b)), not for Expr Simon | -Original Message- | From: glasgow-haskell-users-boun...@haskell.org [mailto:glasgow-haskell- | users-boun...@haskell.org] On Behalf Of Ron Alford | Sent: 12 April 2010 11:09 | To: Simon

Advice on Multiple GHC installations

2010-04-12 Thread Bradford Larsen
I would like to have several versions of ghc installed simultaneously, on the handful of Ubuntu systems I work on. In the past, I have had just a single version of ghc installed on each system, usually the most recent stable generic Linux binary installation. Three questions: 1. Does there

Re: Advice on Multiple GHC installations

2010-04-12 Thread Marc Weber
Excerpts from Bradford Larsen's message of Mon Apr 12 23:28:53 +0200 2010: I would like to have several versions of ghc installed simultaneously, on the handful of Ubuntu systems I work on. In the past, I have had just a single version of ghc installed on each system, usually the most recent

Re: Advice on Multiple GHC installations

2010-04-12 Thread Sean Leather
I would like to have several versions of ghc installed simultaneously, on the handful of Ubuntu systems I work on. In the past, I have had just a single version of ghc installed on each system, usually the most recent stable generic Linux binary installation. I just recently announced