September 2005 - Glasgow-haskell-users

RE: ANNOUNCE: Visual Haskell version 0.0
by Simon Marlow 28 Sep '05

28 Sep '05

> > A quick note about the license: this is a binary release with a BSD > > license. We changed the license at the last minute, and > didn't have > > time to re-roll the installer. You have the option of using Visual > > Haskell either under the click-through license in the installer (a > > Microsoft shared source license for non-commercial use) or the more > > liberal BSD license in the documentation. > > Will you be coming out with another installer? I'm not > comfortable clicking "accept" on the MSR license... Yes, the next version of the installer will contain the BSD license in place of the MSR license. I can't say for sure when, but sooner rather than later. Cheers, Simon

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ANNOUNCE: Visual Haskell version 0.0
by Simon Marlow 27 Sep '05

27 Sep '05

The Visual Haskell team are proud to announce the first preview release of Visual Haskell, version 0.0. Visual Haskell is a complete development environment for Haskell software, based on Microsoft's Visual Studio platform. Visual Haskell integrates with the Visual Studio editor to provide interactive features to aid Haskell development, and it enables the construction of projects consisting of multiple Haskell modules, using the Cabal building/packaging infrastructure. Visual Haskell is a complete system in one download: it includes a full GHC installation with libraries, and various tools including Haddock, Happy, and Alex. In order to use Visual Haskell, you need an x86 machine running Windows, and Visual Studio .NET 2003. Downloads, screenshots and documentation here: http://www.haskell.org/visualhaskell/ Please note that this is a preview release - please download and try it out, but don't expect a production quality experience. We'll be grateful for any feedback you have. A quick note about the license: this is a binary release with a BSD license. We changed the license at the last minute, and didn't have time to re-roll the installer. You have the option of using Visual Haskell either under the click-through license in the installer (a Microsoft shared source license for non-commercial use) or the more liberal BSD license in the documentation. Enjoy! Simon Marlow Krasimir Angelov (with thanks to the others who have contributed to Visual Haskell in the past and to the huge amount of external software on which it relies).

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GHC-6.4.1 on FreeBSD-amd64 still not ported
by wb＠arb-phys.uni-dortmund.de 25 Sep '05

25 Sep '05

Though I have reported some sort of success on this in the last days, I was too early. The ghc-inplace does not work on the target system. It compiled because I have been too lax in following the instructions. Here is the report, where the crossport fails on the i386host system: tar czf ghc-6.4.1-x86_64-unknown-freebsd-hc.tar.gz `cat hc-files-to-go` tar: ghc-6.4.1/ghc/rts/PrimOps.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/StgStartup.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/StgStdThunks.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/Updates.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/Apply.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/Exception.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/HeapStackCheck.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/ghc/rts/StgMiscClosures.hc: Cannot stat: No such file or directory tar: ghc-6.4.1/libraries/haskell-src/Language/Haskell/Parser.hs: Cannot stat: No such file or directory gmake: *** [hc-file-bundle] Fehler 1 bash-2.05b$ (cd ghc/rts; gmake PrimOps.o ) ../../ghc/compiler/ghc-inplace -H16m -O -H32m -keep-hc-files -static -I. -#include Prelude.h -#include Rts.h -#include RtsFlags.h -#include RtsUtils.h -#include StgRun.h -#include Schedule.h -#include Printer.h -#include Sanity.h -#include STM.h -#include Storage.h -#include SchedAPI.h -#include Timer.h -#include Itimer.h -#include ProfHeap.h -#include LdvProfile.h -#include Profiling.h -#include Apply.h -fvia-C -dcmm-lint -c PrimOps.cmm -o PrimOps.o In file included from PrimOps.cmm:28: /home/wb/Haskell/fptools-i386amd64/ghc-6.4.1/ghc/includes/Cmm.h:288:2: #error mp_limb_t != StgWord: assumptions in PrimOps.cmm are now false gmake: *** [PrimOps.o] Fehler 1 Similar messages for attemps to make other of the failing .hc files. Perhaps crossporting from a 64bit system is easier. I presume that once a working ghc is available, life is much easier, as Fedora Linux-64 does not report problems. -- Dipl.-Math. Wilhelm Bernhard Kloke Institut fuer Arbeitsphysiologie an der Universitaet Dortmund Ardeystrasse 67, D-44139 Dortmund, Tel. 0231-1084-257

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ANNOUNCE: GHC 6.4.1 binary package for Mac OS X
by Wolfgang Thaller 23 Sep '05

23 Sep '05

My GHC 6.4.1 packages for Mac OS X are finally ready. Mac OS X 10.3.9 (Panther) and 10.4.x (Tiger) ==== http://www.uni-graz.at/imawww/haskell/GHC-6.4.1.pkg.zip This is an installer package that will install a full version of GHC with GHCi, profiling, dynamic linking, double-clickable icons and HTML documentation on Mac OS X 10.3.9 or later. Darwin/PPC 8.x and Mac OS X 10.4 (Tiger) ==== http://www.uni-graz.at/imawww/haskell/ghc-6.4.1dyn-powerpc-apple- darwin.tar.bz2 This is a standard unix-style binary package with GHCi, profiling, dynamic linking and HTML docs. It requires Mac OS X 10.4 (Tiger) and libreadline.5.0.dylib. The readline library is expected to be installed in /usr/local/lib, but you can change those expectations using the following command: install_name_tool -change /usr/local/lib/libreadline.5.0.dylib /some/ new/path/libreadline.5.0.dylib ghc-6.4.1/lib/powerpc-apple-darwin/ ghc-6.4.1 Enjoy, Wolfgang

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ghc 6.4.1 web page
by Iavor Diatchki 23 Sep '05

23 Sep '05

Hello, It appears that the instructions on the GHC 6.4.1 page for downloading and installing debian packages are incorrect (see bellow). -Iavor On Wed, Sep 21, 2005 at 11:00:39AM -0700, Iavor Diatchki wrote: > Hello, > > The GHC 6.4.1 download page > (http://haskell.org/ghc/download_ghc_641.html#debian) seems to > indicate that there is a debian package for GHC 6.4.1. However, I > seem to only be able to find a package for GHC 6.4. Where can I get > the 6.4.1 package? It's only in Haskell Unsafe at the moment: http://haskell-unsafe.alioth.debian.org/haskell-unsafe.html Thanks Ian

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[ ghc-Feature Requests-1157515 ] GHCi support on x86_64
by SourceForge.net 23 Sep '05

23 Sep '05

Feature Requests item #1157515, was opened at 2005-03-06 00:25 Message generated for change (Comment added) made by simonmar You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=358032&aid=1157515&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: GHCi support on x86_64 Initial Comment: I just installed the 64bit version of ghc on an athlon 64. ghc does work and produces correct 64bit code, but ghci fails to start. Here is the complete output: [phil@athlon64 ~]$ ghci ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.2.2, for Haskell 98. / /_\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. Loading package base ... /usr/lib64/ghc-6.2.2/HSbase.o: unknown architecture ghc-6.2.2: panic! (the `impossible' happened, GHC version 6.2.2): loadObj: failed Please report it as a compiler bug to glasgow-haskell-bugs(a)haskell.org, or http://sourceforge.net/projects/ghc/. I'm using Fedora Core 3 and installed ghc using yum. If you have any questions, contact me: philipp.classen[AT]gmx.net Thanks, Philipp ---------------------------------------------------------------------- >Comment By: Simon Marlow (simonmar) Date: 2005-09-23 10:28 Message: Logged In: YES user_id=48280 Basic GHCi support is available in 6.4.1. However, FFI support in GHCi is missing, and there are problems with accessing data in a shared library from Haskell code. ---------------------------------------------------------------------- Comment By: Simon Marlow (simonmar) Date: 2005-03-07 12:03 Message: Logged In: YES user_id=48280 Changed to a feature request; GHCi support is simply not present on x86_64 yet. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=358032&aid=1157515&group_…

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RE: Garbage collecting CAFs
by Simon Peyton-Jones 23 Sep '05

23 Sep '05

A quick reply before running to ICFP The trouble with CAFs is this ints :: [Int] ints = [1,2..] f a b = ...ints... The 'ints' CAF is alive at any point in program execution at which 'f' can be called in the future. But a call to 'f' may be represented only by a reference to f's entry point in some x86 code block; it does not mean that f's closure is reachable by the garbage collector. GHC fixes this by adding, to each code block, a static table of pointers to other code blocks that it might call; and to any static closures (like 'ints') that it uses directly. The garbage collector traverses the code graph via these static tables, to find all the CAFs that are still reachable. Unreachable CAFs are garbage collected as usual. It's all a major pain, and all the more so because it's usually only naïve programs that contain CAFs. Real programs tend to depend on data read at runtime, and don't have large CAFs. Alas, naïve programs are the ones people write on day 1, and we had lots of anguished cries that turned out to be CAF space leaks. So we bit the bullet some years ago and did the full code-graph thing. As a result, we removed many optimiser hacks which were there solely to avoid generating new CAFs that the programmer had not written. Simon | -----Original Message----- | From: glasgow-haskell-users-bounces(a)haskell.org [mailto:glasgow-haskell-users- | bounces(a)haskell.org] On Behalf Of Andrew Cheadle | Sent: 20 September 2005 20:47 | To: John Meacham | Cc: glasgow-haskell-users(a)haskell.org | Subject: Re: Garbage collecting CAFs | | Hi John, | | Obviously the Simons are most qualified to answer this, however, | perhaps the following document (page 44-46) is sufficient to explain | this: | | http://www.haskell.org/ghc/docs/papers/run-time-system.ps.gz | | it was a draft document that wasn't quite finished and was aimed at GHC | 4.xx. I believe much of it is still applicable (except wrt evaluation | where the eval-apply mechanism is used over push-enter). | | HTH | | Andy | | On Tue, 20 Sep 2005, John Meacham wrote: | | >I have seen numerous references to CAFs not used to being garbage | >collected in ghc leading to various contortions of the optimizer to keep | >from generating them and possible space leaks... then "something" was | >done and they are now collected.. I am curious what paper (or list | >message?) describes what that "something" is and what it entails in | >terms of tradeoffs. thanks. | > John | > | > | >-- | >John Meacham - ⑆repetae.net⑆john⑈ | >_______________________________________________ | >Glasgow-haskell-users mailing list | >Glasgow-haskell-users(a)haskell.org | >http://www.haskell.org/mailman/listinfo/glasgow-haskell-users | > | | ********************************************************************* | * Andrew Cheadle email: a.cheadle(a)doc.ic.ac.uk * | * Department of Computing http://www.doc.ic.ac.uk/~amc4/ * | * Imperial College * | * University of London * | ********************************************************************* | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users(a)haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

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ANNOUNCE: GHC version 6.4.1
by Simon Marlow 22 Sep '05

22 Sep '05

============================================================= The (Interactive) Glasgow Haskell Compiler -- version 6.4.1 ============================================================= The GHC Team is pleased to announce a new patchlevel release of GHC. This release contains a significant number of bugfixes relative to 6.4, so we recommend upgrading. No library APIs have changed, so code that was working with 6.4 should continue to work with 6.4.1. Release notes are here: http://haskell.org/ghc/docs/6.4.1/html/users_guide/release-6-4-1.html How to get it ~~~~~~~~~~~~~ The easy way is to go to the WWW page, which should be self-explanatory: http://www.haskell.org/ghc/ We supply binary builds in the native package format for various flavours of Linux and BSD, and in Windows Installer (MSI) form for Windows folks. Binary builds for other platforms are available as a .tar.gz which can be installed wherever you want. The source distribution is also available from the same place. Packages will appear as they are built - if the package for your system isn't available yet, please try again later. Background ~~~~~~~~~~ Haskell is a standard lazy functional programming language; the current language version is Haskell 98, agreed in December 1998 and revised December 2002. GHC is a state-of-the-art programming suite for Haskell. Included is an optimising compiler generating good code for a variety of platforms, together with an interactive system for convenient, quick development. The distribution includes space and time profiling facilities, a large collection of libraries, and support for various language extensions, including concurrency, exceptions, and foreign language interfaces (C, whatever). GHC is distributed under a BSD-style open source license. A wide variety of Haskell related resources (tutorials, libraries, specifications, documentation, compilers, interpreters, references, contact information, links to research groups) are available from the Haskell home page (see below). On-line GHC-related resources ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Relevant URLs on the World-Wide Web: GHC home page http://www.haskell.org/ghc/ Haskell home page http://www.haskell.org/ comp.lang.functional FAQ http://www.cs.nott.ac.uk/~gmh/faq.html Supported Platforms ~~~~~~~~~~~~~~~~~~~ GHC supports the following platforms in this release: * x86 machines running Windows, common flavours of Linux, FreeBSD, OpenBSD, and NetBSD * x86_64 (aka amd64) machines running Linux * Macs running MacOS X * PowerPC machines running AIX or Linux * Sparc machines running Solaris. Ports to other platforms are possible with varying degrees of difficulty. The Building Guide gives a complete run-down of what ports work and how to go about porting to a new platform: http://www.haskell.org/ghc/docs/latest/html/building/building-guide.html Mailing lists ~~~~~~~~~~~~~ We run mailing lists for GHC users and bug reports; to subscribe, use the web interfaces at http://www.haskell.org/mailman/listinfo/glasgow-haskell-users http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs There are several other haskell and ghc-related mailing lists on www.haskell.org; for the full list, see http://www.haskell.org/mailman/listinfo/ Please report bugs using our SourceForge page at http://sourceforge.net/projects/ghc/ or send them to glasgow-haskell-bugs(a)haskell.org. GHC users hang out on glasgow-haskell-users(a)haskell.org. Bleeding edge CVS users party on cvs-ghc(a)haskell.org.

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RE: ANNOUNCE: GHC version 6.4.1
by Simon Marlow 22 Sep '05

22 Sep '05

On 22 September 2005 14:10, Thomas Schwinge wrote: > On Thu, Sep 22, 2005 at 01:27:38PM +0100, Simon Marlow wrote: >> On 22 September 2005 13:11, Thomas Schwinge wrote: >> >>> On Mon, Sep 19, 2005 at 02:51:47PM +0100, Simon Marlow wrote: >>>> >>>> ============================================================= >>>> The (Interactive) Glasgow Haskell Compiler -- version 6.4.1 >>>> ============================================================= >>> >>>> Supported Platforms >>>> ~~~~~~~~~~~~~~~~~~~ >>>> >>>> GHC supports the following platforms in this release: >>>> >>>> * x86 machines running Windows, common flavours of Linux, >>>> FreeBSD, OpenBSD, and NetBSD >>> >>> Don't forget the port to GNU/Hurd! >>> :-) >> >> Good point, I completely forgot. > > No problem. :-) > It's not that important, since I'm most probably the only one who used > it until now and that--so far--only for building darcs... :-/ > >> If you have a distribution, I can add >> it to the 6.4.1 downloads. > > How can I create a `generic binary bundle' from a built source tree, > like the ones you provide on > <URL:http://haskell.org/ghc/download_ghc_641.html>? more or less like this: $ tar xvjf ghc-6.4.1-src.tar.bz2 $ cd ghc-6.4.1 $ echo "BIN_DIST=1" >mk/build.mk $ make $ make binary-dist Project=Ghc $ tar cvjf ghc-6.4.1-i386-gnu-hurd.tar.bz2 ghc-6.4.1 the important thing is that you set "BIN_DIST=1" in mk/build.mk *before* building. It affects certain tools and the package database. If you can't build docs on your machine (a common problem), then you can grab docs from another distribution and put them in yours. Cheers, Simon

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RE: ANNOUNCE: GHC version 6.4.1
by Simon Marlow 22 Sep '05

22 Sep '05

On 22 September 2005 13:11, Thomas Schwinge wrote: > On Mon, Sep 19, 2005 at 02:51:47PM +0100, Simon Marlow wrote: >> >> ============================================================= >> The (Interactive) Glasgow Haskell Compiler -- version 6.4.1 >> ============================================================= > >> Supported Platforms >> ~~~~~~~~~~~~~~~~~~~ >> >> GHC supports the following platforms in this release: >> >> * x86 machines running Windows, common flavours of Linux, FreeBSD, >> OpenBSD, and NetBSD > > Don't forget the port to GNU/Hurd! > :-) Good point, I completely forgot. If you have a distribution, I can add it to the 6.4.1 downloads. Cheers, Simon

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