- Haskell - Haskell.org

Building Programs Again
by Steinitz, Dominic J 28 May '01

28 May '01

I am going to install hmake and upgrade to ghc 5 but in the meantime I decided to use make. I am puzzled however. Presumably building a module that imports a module needs the .hi file and therefore the makefile should be something like this: Tagsv1.o : Tagsv1.hs ghc -c Tagsv1.hs -package lang Basev1.o : Tagsv1.hi Basev1.hs ghc -c Basev1.hs -package lang But if I do this then make complains if I want to see what it will generate [dom@lhrtba8fd85 maketest]$ make -n ghc -c Tagsv1.hs -package lang make: *** No rule to make target `Tagsv1.hi', needed by `Basev1.o'. Stop. Running make works as by the time the rule gets executed the .hi file exists. Can anyone suggest something better? Dominic. ------------------------------------------------------------------------------------------------- 21st century air travel http://www.britishairways.com

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RE: (no subject)
by Simon Peyton-Jones 28 May '01

28 May '01

This looks like a good thread to move to haskell-cafe(a)haskell.org http://haskell.org/mailinglist.html Simon | -----Original Message----- | From: Rab Lee [mailto:leelati@yahoo.com] | Sent: 26 May 2001 08:48 | To: haskell(a)haskell.org | Subject: (no subject) | | | hi, i'm having a bit more touble, can anyone help me | or give me any hints on how to do this : | "x 2 3 4" = ("x", [2, 3, 4]) | | __________________________________________________ | Do You Yahoo!? | Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ _______________________________________________ Haskell mailing list Haskell(a)haskell.org http://www.haskell.org/mailman/listinfo/haskell

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Re: (no subject)
by Ashley Yakeley 28 May '01

28 May '01

At 2001-05-26 00:47, Rab Lee wrote: >hi, i'm having a bit more touble, can anyone help me >or give me any hints on how to do this : >"x 2 3 4" = ("x", [2, 3, 4]) Generally we don't solve homework for people. Unless they're studying under Prof. Karczmarczuk, of course. -- Ashley Yakeley, Seattle WA

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ghc-5.00.1 is available
by Julian Seward (Intl Vendor) 26 May '01

26 May '01

The (Interactive) Glasgow Haskell Compiler -- version 5.00.1 ============================================================== We are pleased to announce a new patchlevel release of the Glasgow Haskell Compiler (GHC), version 5.00.1. The source distribution is freely available via the World-Wide Web and through anon. FTP, under a BSD-style license. See below for download details. Pre-built packages for Linux, FreeBSD, and Solaris(sparc) are also available. Haskell is a standard lazy functional programming language; the current language version is Haskell 98, agreed in December 1998. 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, C++, whatever). 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 at http://www.haskell.org/ GHC's Web page lives at http://www.haskell.org/ghc/ What's new in 5.00.1 ====================== This is a bug-fix release. Most reported bugs in 5.00 have been fixed, including a substantial number of show-stopping bugs. The system should be much more usable for more people. Upgrading to 5.00.1 is recommended. To all those who tried out 5.00 and reported bugs, we thank you for your feedback and patience. At the moment there is no Win32 build of 5.00 or 5.00.1 available. We decided to push Win32 support to the 5.02 release, so as not to delay 5.00.1 any further. What's new in 5.00 ==================== 5.00 has been majorly revamped since the previous stable version, 4.08.2. This should be a stable release. Major changes since 4.08.2 are: - An interactive system, similar in style to Hugs. You can interactively load and unload modules, run expressions, ask the types of things. Module dependencies are tracked and chased automatically. Combinations of compiled and interpreted modules may be used. All the GHC libraries are available in interactive mode, as are most of the Glasgow extensions to Haskell 98. Compilation in interactive mode (to bytecode) is about three times faster than compiling to object code. - Batch compilation of multiple modules at once, with automatic dependency chasing. For large programs this can halve compilation times, and removes the need for Makefiles. - Enhanced package (library) management system. Packages may be installed and removed from an installation using the ghc-pkg tool. - Initial Unicode support - the Char type is now 31 bits. - Sparc native code generator, giving much faster compilation on sparcs. (Native code generation for x86s has been available for a while). - Improved heap profiling - you can restrict heap profiles by type, closure description, cost centre, and module. - Support for the latest Foreign Function Interface (FFI) proposals. Marcin Kowalczyk's hsc2hs tool is included. - Language extensions: parallel list comprehensions and functional dependencies. - The usual huge collection of bug fixes. Most reported bugs have been fixed. For full details see the release notes: http://www.haskell.org/ghc/docs/5.00/set/release-5-00.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 .rpm/.deb form for all you Linux junkies out there, and in InstallShield form for Windows folks. Everybody else gets a .tar.gz which can be installed where you want. Once you have the distribution, please follow the pointers in the README file to find all of the documentation about this release. 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 System requirements ===================== To compile programs with GHC, you need a machine with 32+MB memory, GNU C and perl. This release is known to work on the following platforms: * i386-unknown-{linux,freebsd,mingw32} * sparc-sun-solaris2 Ports to the following platforms should be relatively easy (for a wunderhacker), but haven't been tested due to lack of time/hardware: * hppa1.1-hp-hpux{9,10} * i386-unknown-solaris2 * alpha-dec-osf{2,3} * mips-sgi-irix{5,6} * {rs6000,powerpc}-ibm-aix The builder's guide included in distribution gives a complete run-down of what ports work; an on-line version can be found at http://www.haskell.org/ghc/docs/5.00/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 send bug reports about GHC 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: Haskell & .NET CLR
by Nigel Perry 26 May '01

26 May '01

At 12:53 am -0700 23/5/01 you wrote: >| Are any of the various Haskell implm., e.g. ghc, being >| targeted for the .NET CLR? You can get a beta version of ghc for .NET from www.mondrian-script.org. A lot, but far from all, or the standard libraries are provided. There is no floating point support (use the Mondrian compiler ;-)). This version of ghc will be superceded by another from a different source... Cheers, Nigel -- Nigel Perry, New Zealand

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(no subject)
by Rab Lee 26 May '01

26 May '01

hi, i'm having a bit more touble, can anyone help me or give me any hints on how to do this : "x 2 3 4" = ("x", [2, 3, 4]) __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

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(no subject)
by Rab Lee 26 May '01

26 May '01

hi, i'm having a bit more touble, can anyone help me or give me any hints on how to do this : "x 2 3 4" = ("x", [2, 3, 4]) __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

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can anyone help?
by Rab Lee 26 May '01

26 May '01

Dear Experts, I would appreciate any help that anyone can give me. I'm having a bit of trouble with Haskell, my question is pretty simple and i was wonder if anyone could please tell me how to change a string into a list??? Thank you in advance Leat __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

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RE: a cygwin binary package of ghc-5.00.x
by Konst Sushenko 25 May '01

25 May '01

Alexander, It looks like I had a similar problem with ghc script not being recognised by cygwin, and I assume that ghc-asm is also a perl script. I ended up invoking perl explicitly thus perl -S ghc ... I guess if you do the same with ghc-asm, it will work. Hope this helps Konst -----Original Message----- From: Alexander V. Voinov [mailto:avv@quasar.ipa.nw.ru] Sent: Friday, May 25, 2001 11:15 AM To: Simon Peyton-Jones Cc: haskell(a)haskell.org Subject: Re: a cygwin binary package of ghc-5.00.x Hi Simon et al. I see. My concern is the following. Before I stick to haskell I have to make sure that I can connect some necessary windows-specific C stuff to my programs - both mine and external. I can start developing with Hugs, but finally I would need a compiled speed. Do I understand correctly, that Hugs allows to make C extensions on windows? Can I then use the same interfaces once ghc for windows is ready? My last obstacle with recompiling ghc is ../../ghc/compiler/ghc-inplace -I../includes -I. -Iparallel -O2 -DCOMPILING_RTS -static -c Exception.hc -o Exception.o 'c:/avv/soft/ghc-5.00.1/ghc/compiler/../driver/mangler/ghc-asm' is not recognized as an internal or external command, operable program or batch file. where c:/avv/soft/ghc-5.00.1 is evidently the root of the source tree, and this ghc-asm is present at the specified location. I tried to change the prefix to /cygwin/c/... in Config.hs, but this didn't help. Besides, I'd be much more interested in making extensions with VC N, where N >= 5 or 6. If the words 'doesn't require Cygwin ' below mean exactly this, I'd better wait. Thank you in advance Alexander Simon Peyton-Jones wrote: > I'm afraid there isn't a Windows port of 5.00.1 yet. We have one > working here, but we are trying to get the packaging right so that it > doesn't require Cygwin etc. > > If you want to build it from source, you might want to wait for Reuben > to put up the 4.08 download he's about to distribute. I have myself > used this download to compile the head from source yesterday, so I > know it works! > > Simon > > | -----Original Message----- > | From: Alexander V. Voinov [mailto:avv@quasar.ipa.nw.ru] > | Sent: 24 May 2001 19:12 > | To: haskell(a)haskell.org > | Subject: a cygwin binary package of ghc-5.00.x > | > | > | Hi All, > | > | Do anybody have one? I failed to recompile it with ghc 4.08.x. > | > | Thank you in advance > | > | Alexander > | > | > | > | _______________________________________________ > | Haskell mailing list > | Haskell(a)haskell.org http://www.haskell.org/mailman/listinfo/haskell > | > > _______________________________________________ > Haskell mailing list > Haskell(a)haskell.org http://www.haskell.org/mailman/listinfo/haskell _______________________________________________ Haskell mailing list Haskell(a)haskell.org http://www.haskell.org/mailman/listinfo/haskell

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Unicode
by Ashley Yakeley 25 May '01

25 May '01

At 2001-05-24 05:57, Julian Seward (Intl Vendor) wrote: > - Initial Unicode support - the Char type is now 31 bits. It might be appropriate to have two types for Unicode, a UCS2 type (16 bits) and a UCS4 type (31 bits). For instance, something like: -- newtype UCS2CodePoint = MkUCS2CodePoint Word16 newtype UCS4CodePoint = MkUCS4CodePoint Word31 type Char = UCS4CodePoint toUCS4 :: UCS2CodePoint -> UCS4CodePoint fromUCS4 :: UCS4CodePoint -> Maybe UCS2CodePoint encodeUTF16 :: [UCS4CodePoint] -> Maybe [UCS2CodePoint] decodeUTF16 :: [UCS2CodePoint] -> Maybe [UCS4CodePoint] -- -- Ashley Yakeley, Seattle WA

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