November 2002 - Glasgow-haskell-users

RE: emacs "hangs" in haskell mode
by Simon Marlow 06 Nov '02

06 Nov '02

> yeah, the mode needs to be updated. edit your haskell-ghci.el file , > namely the line which begins "(setq comint-prompt-regexp" to: > > (setq comint-prompt-regexp "^[\*_a-zA-Z0-9\. ]*>") > > The problem is that ghc changed a bit what it outputs. The sources had been fixed some time ago, but I didn't get around to rolling a new version. Anyway, you'll now find version 1.44 of the emacs haskell mode on haskell.org: http://www.haskell.org/haskell-mode/ which works with recent GHCis. Cheers, Simon

1 0

emacs "hangs" in haskell mode
by Konst Sushenko 06 Nov '02

06 Nov '02

hello, when i press C-c C-l to load my file into ghci, emacs stops responding. task manager shows ghc.exe process running, so it happens some time after the ghci buffer is created. my setup: - emacs on windows xp, version 21.1.1 - GHC package version 5.04.1 - haskell editing mode version 1.43 - relevant .emacs lines: (add-to-list 'load-path "c:/programs/emacs-21.1/site-lisp/haskell-mode") (add-to-list 'auto-mode-alist '("\\.hs$" . haskell-mode)) (add-to-list 'auto-mode-alist '("\\.lhs$" . literate-haskell-mode)) (autoload 'haskell-mode "haskell-mode") (autoload 'literate-haskell-mode "haskell-mode") (setq haskell-ghci-program-name "c:/ghc/ghc-5.04.1/bin/ghci.exe") (add-hook 'haskell-mode-hook 'turn-on-haskell-decl-scan) (add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode) (add-hook 'haskell-mode-hook 'turn-on-haskell-font-lock) (add-hook 'haskell-mode-hook 'turn-on-haskell-ghci) (add-hook 'haskell-mode-hook 'turn-on-haskell-indent) would appreciate any help! konst

2 1

Extensible records in Haskell
by Nicolas Oury 05 Nov '02

05 Nov '02

Hello, is there something like extensible records in ghc? Is it planed to? Can anyone help? Best regards, Nicolas Oury

2 1

RE: ghc 5 for Solaris 2.6
by Seth Kurtzberg 05 Nov '02

05 Nov '02

I have it working on Solaris 2.8, bootstrapped from 4.08 as Simon describes. The same procedure should work on 2.6. If you have problems I can send you the contents of the directory after compilation. I think the compiled directory from 2.8 would run on 2.6, as long as 64 bit mode isn't used. On Tue, 2002-11-05 at 03:01, Simon Marlow wrote: > > I need to run ghc 5.02 or later on Solaris 2.6. I don't have > > any version > > of ghc on the machine. Are there binaries for 2.6 still? > > Alternatively, > > is it possible to build it without ghc? > > You might find that the 2.7 binaries work on your system. Failing that, > you'll need to bootstrap GHC from .hc files, starting from version > 4.08.2. Instructions are here: > > > http://www.haskell.org/ghc/docs/latest/html/building/sec-porting-ghc.htm > l > > Cheers, > Simon > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users(a)haskell.org > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users -- Seth Kurtzberg M. I. S. Corp 480-661-1849 Pager 888-605-9296, or 6059296(a)skytel.com

1 0

RE: ghc 5 for Solaris 2.6
by Simon Marlow 05 Nov '02

05 Nov '02

> I need to run ghc 5.02 or later on Solaris 2.6. I don't have > any version > of ghc on the machine. Are there binaries for 2.6 still? > Alternatively, > is it possible to build it without ghc? You might find that the 2.7 binaries work on your system. Failing that, you'll need to bootstrap GHC from .hc files, starting from version 4.08.2. Instructions are here: http://www.haskell.org/ghc/docs/latest/html/building/sec-porting-ghc.htm l Cheers, Simon

1 0

RE: -Wall with recursive functions
by Simon Peyton-Jones 05 Nov '02

05 Nov '02

This is a long-standing bug which is rather tiresome to fix in general. What I've done is to commit a fix that finds the unused bindings you give, but does not find transitive ones. For example Module Foo() where f x = f t x t = 3 Here f is used, and therefore so is t. The quick fix will find the first but not the second. Ah well, it's an improvement Simon | -----Original Message----- | From: Hal Daume III [mailto:hdaume@ISI.EDU] | Sent: 04 November 2002 18:02 | To: GHC Users Mailing List | Subject: -Wall with recursive functions | | If I complile the code: | | > module Wall () where | > f x = f x | | With -Wall, I do *not* get a "defined by not used" warning on f, which I | think I should. The same thing happens for mutually-recursive functions: | | > module Wall () where | > g x = h x | > h x = g x | | does not yield warnings for unused definitions... | | Is there a reason for this (i.e., is the common behavior in other | compilers)? | | - Hal | | -- | Hal Daume III | | "Computer science is no more about computers | hdaume(a)isi.edu | than astronomy is about telescopes." -Dijkstra | www.isi.edu/~hdaume | | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users(a)haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

1 0

ghc 5 for Solaris 2.6
by Mark Alexander Wotton 05 Nov '02

05 Nov '02

I need to run ghc 5.02 or later on Solaris 2.6. I don't have any version of ghc on the machine. Are there binaries for 2.6 still? Alternatively, is it possible to build it without ghc? mrak -- call no man happy till he dies -- Solon the Lawgiver, via Tom Waits

1 0

-Wall with recursive functions
by Hal Daume III 04 Nov '02

04 Nov '02

If I complile the code: > module Wall () where > f x = f x With -Wall, I do *not* get a "defined by not used" warning on f, which I think I should. The same thing happens for mutually-recursive functions: > module Wall () where > g x = h x > h x = g x does not yield warnings for unused definitions... Is there a reason for this (i.e., is the common behavior in other compilers)? - Hal -- Hal Daume III "Computer science is no more about computers | hdaume(a)isi.edu than astronomy is about telescopes." -Dijkstra | www.isi.edu/~hdaume

1 0

AW: -parallel and error"failed to load interface for ..."
by Khamenia, Valery 04 Nov '02

04 Nov '02

> Valery: You unfortunately cannot just use -parallel with the > normal GHC compiler. You need to download one which is actually meant > to be used in parallel (namely GPH). You can find information about it here: > http://www.cee.hw.ac.uk/~dsg/gph/ aha, the flavor is clear, but this link leads to the same ghc! does anyone see here the true gph alive and in free form? :) > GHC Folk: I think a better error message is in order here. good idea. thank you for help, --------------------------------------------------------------------------- Valery A.Khamenya Bioinformatics Department BioVisioN AG, Hannover

1 0

-parallel and error"failed to load interface for ..."
by Khamenia, Valery 04 Nov '02

04 Nov '02

Hi ghc world, why option -parallel leads to error while without this option everything was compiled OK? --------------------Custom Tool: ghc-------------------- Command : D:\pkg\ghc\ghc-5.04.1\bin\ghc.exe -parallel -package concurrent "Examples.hs" -o a.exe Directory : "C:\tmp\Haskell\try" Examples.hs:2: failed to load interface for `Prelude': Could not find interface file for `Prelude' Examples.hs:5: failed to load interface for `Parallel': Could not find interface file for `Parallel' --------------------------------------------------------------------------- regards, Valery A.Khamenya Bioinformatics Department BioVisioN AG, Hannover

2 1