- Glasgow-haskell-users

RE: replacing the Prelude (again)
by Ashley Yakeley 15 Jul '02

15 Jul '02

At 2002-07-15 01:05, Simon Peyton-Jones wrote: >I quite like the fact that you would then have to say > > import MyPrelude as Prelude > >thereby stressing that you are importing the Prelude stuff. Doesn't this assume your Prelude stuff is all in one module? Or can you import several modules "as Prelude"? As a Prelude-replacer, my preference is rather towards keeping it as it is... it seems a bit simpler and easier to understand. -- Ashley Yakeley, Seattle WA

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package name mismatch
by Max Kirillov 13 Jul '02

13 Jul '02

Hello! Building htk, I've got an error: TestGetPut.hs:6: Module `GetPut' is located in package `Main' but its interface file claims it is part of package `uni-events-test' It happened (as far as I got) when ghc saw in current path the *.hi file built for installation. There are some ways to work around it, but, there was a lot of such places, so can I just skip the 'package name' check and go as it is? In http://www.haskell.org/pipermail/glasgow-haskell-users/2002-January/002849.… Simon Marlow said that it is a warning. That wold be nice, but I see an error. that's ghc-5.02 Max.

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Unregisterised build
by Christoph Reichenbach 12 Jul '02

12 Jul '02

Hi, I'm trying to do an unregistered build of ghc, using the cross-port script. However, compilation aborts at the following point: haskell/b1/libraries/base > ../../ghc/compiler/ghc-inplace -ldl -fglasgow-exts -cpp -Iinclude -funbox-strict-fields -package-name base -O -H24m -keep-hc-files-too -optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised -fvia-C -split-objs -c GHC/Base.lhs -o GHC/Base.o The problem appears to be a conflict between '-split-objs' and '-fno-asm-mangling' (which, together with '-funregisterised', is supposed to have been replaced by '-unreg' now, if I'm not mistaken). However, -split-objs seems to be required for building libraries, whereas -fno-asm-mangling is probably needed for an unregisterised build (I'm just guessing here...). How do I compile libraries for an unregisterised build, then? (Alternatively: Does anyone happen to have the resulting .hc files from one lying around?) Background: I'm trying to get ghc up and running on Alpha/Linux (I'm reluctant to call it 'porting', since the hard part has been done by Ken Shan already, as far as I know). Thanks in advance for any help! llap, Christoph

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Updated version of 5.04 installer available
by Sigbjorn Finne 12 Jul '02

12 Jul '02

Hi, should you run into linking problems when/if using the --mk-dll option to build DLLs with ghc-5.04 on a Windows box, a patched version of the 5.04 installer is now available which fixes the underlying problem. That's the only thing different wrt. the original 5.04 installer, so unless you're directly running into this problem, it's probably not worth your bandwidth to download the updated MSI. Thanks to Mark Tehver for reporting this. --sigbjorn

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make -j2 fails on SMP with ghc-5.04
by Shae Matijs Erisson 12 Jul '02

12 Jul '02

I have a dual Athlon box, make -j2 fails, but make works. Is that normal? -- Shae Matijs Erisson - http://www.webwitches.com/~shae/

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RE: ANNOUNCE: GHC version 5.04 released
by Simon Marlow 12 Jul '02

12 Jul '02

> RPMs built on Red Hat 7.3 are now available from Also now available from the GHC download page. Simon

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Re: CATALOG & RH 7.3
by dons＠cse.unsw.edu.au 12 Jul '02

12 Jul '02

On Fri, Jul 12, 2002 at 12:34:39AM +1000, Manuel M T Chakravarty wrote: > Since I updated to RedHat 7.3, configure doesn't seem to be > able to determine a valid DocBook catalog anymore. Anybody > else seen this problem or is there something wrong in my > setup? > > Manuel Same problem on OpenBSD. The "catalog" file is stored in /usr/local/share/sgml on my system, and is not found. Hence: --- configure.orig Thu Jul 11 21:02:09 2002 +++ configure Thu Jul 11 21:02:51 2002 @@ -2550,7 +2550,7 @@ Test. EOF fptools_cv_sgml_catalog=no if test -z "$SGML_CATALOG_FILES" ; then - for fptools_catalog in /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CAT ALOG.docbkdsl glafp-utils/docbook/CATALOG*; do + for fptools_catalog in /usr/local/share/sgml/catalog /etc/sgml/catalog /etc/sg ml.catalog /usr/share/sgml/CATALOG.docbkdsl glafp-utils/docbook/CATALOG*; do ac_try="$JadeCmd -t rtf -d docs/fptools-both.dsl#print -c $fptools_catalog c onftest.sgml" Don

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by p_wqb1p22lkts＠thestandardeurope.com 11 Jul '02

11 Jul '02

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chat multitasking e suola di sesso live
by jusy 11 Jul '02

11 Jul '02

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type classes / ghci
by Keean 10 Jul '02

10 Jul '02

I have found what is either a problem in ghc/ghci or a problem in my understanding... either way if someone could point out whats wrong I would be very grateful. I am experimenting with monad-transformers, and am tying to define a class to allow a run function to be overloaded. The program layers two monads on top of the IO monad, a state monad-transformer, and an error monad-transformer. If I define a set of untyped functions: unFC (FC x) = x -- run a forward composed monad unBC (BC x) = x -- run a backward composed monad unSTM (STM x) = x -- run a monad composed with a State monad-transformer I then used ghci to derive the type for these functions... unFC :: forall m n a . (Monad m,Monad n) => FComp m n a -> n (m a) unBC :: forall m n a . (Monad m,Monad n) => BComp m n a -> m (n a) unSTM :: forall s m a . (Monad m) => StateT s m a -> s -> m (a,s) the program still passes type checking with these types added. next I defined a type class: class Composed c where run :: c and some instances: instance (Monad m,Monad n) => Composed (FComp m n a -> n (m a)) run = unFC instance (Monad m,Monad n) => Composed (BComp m n a -> m (n a)) run = unBC instance (Monad m) => Composed (StateT s m a -> s -> m (a,s)) run = unSTM However when I compile now, replacing: unFC (unSTM test (0::Int)) with run (run test (0::Int)) I now get an error: no instances for (Composed (t -> IO t1),Composed (StateT Int ErrorIO Int -> Int -> t)) Regards, Keean.

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