RE: calling system gives exception, waitForProcess

2005-12-05 Thread Simon Marlow
On 28 November 2005 23:16, Neil Mitchell wrote: > On Windows XP, with GHC 6.4.1, I get the following error consistently > when calling "system", from the module System. I get this error on two > entirely different computers, one slow (750Mhz) system, and one fast > (3Ghz) system. > > Its easiest

Re: recommended build system

2005-12-05 Thread Frederik Eaton
Go figure... I suppose that fixes Cabal too, now. Thanks, Frederik On Mon, Dec 05, 2005 at 10:51:19AM -, Simon Peyton-Jones wrote: > Simon fixed this recently. The GHC HEAD build will not re-link with > --make if none of the object files have changed. > > Simon ___

RE: recommended build system

2005-12-05 Thread Simon Peyton-Jones
Simon fixed this recently. The GHC HEAD build will not re-link with --make if none of the object files have changed. Simon | -Original Message- | From: [EMAIL PROTECTED] [mailto:glasgow-haskell-users- | [EMAIL PROTECTED] On Behalf Of Frederik Eaton | Sent: 04 December 2005 00:46 | To: gl

Re: recommended build system

2005-12-05 Thread Malcolm Wallace
Frederik Eaton <[EMAIL PROTECTED]> writes: > I'm looking for a build system for my projects which will correctly > handle all of ghc's dependencies. I.e. every time I ask it to rebuild > an output file, it will only do the minimum amount of compilation > necessary. 'hmake' is pretty good at what

RE: Data.Typeable and default instances

2005-12-05 Thread Simon Peyton-Jones
Jim You've found a strange corner case. Here's a cut-down example, which fails in exactly the same way. class Baz v x where foo :: x -> x-- Notice that v is not mentioned foo y = y instance Baz Int Int But it succeeds if you put the instance expli

RE: GHCI and archive libraries.

2005-12-05 Thread Simon Peyton-Jones
I believe that it ought to be fairly straightforward to modify GHCi's linker (which is written in C) to understand .a files. Would someone like to try? Failing that, it'd be great if someone would feel able to write a few paras to summarise this thread, for us to add to the documentation. Simon