February 2005 - Glasgow-haskell-users

RE: Haddock chokes on '#'
by Simon Marlow 14 Feb '05

14 Feb '05

On 11 February 2005 17:44, Peter Simons wrote: > Processing the file > >> module Test where >> >> -- |Haddock chokes on this. >> >> (#) :: a -> (a -> b) -> b >> a # f = f a > > with Haddock 0.6 gives an error: > > | haddock test.hs > | test.hs:5:3: Parse error > > Since GHC deals with this code just fine, I suppose this is > a bug. Haddock parses GHC extensions by default, so its syntax corresponds to GHC with -fglasgow-exts. This could be considered a bug, but it probably won't get fixed (unless someone sends me a patch...). Cheers, Simon

2 1

RE: GHC 6.4 release candidates available
by Simon Marlow 14 Feb '05

14 Feb '05

On 13 February 2005 21:30, Stephane Bortzmeyer wrote: > On Thu, Feb 10, 2005 at 01:11:48PM -0000, > Simon Marlow <simonmar(a)microsoft.com> wrote > a message of 17 lines which said: > >> We are finally at the release candidate stage for GHC 6.4. >> Snapshots with versions 6.4.20050209 and later should be considered >> release candidates for 6.4. > > One of my platforms is still not recognized: > > preston:~/tmp/ghc-6.4.20050212 % ./configure > configure: loading site script /usr/local/etc/config.site > configure: creating cache /usr/local/var/tmp/config.cache > checking build system type... sparc64-unknown-netbsd2.0.1 > checking host system type... sparc64-unknown-netbsd2.0.1 > checking target system type... sparc64-unknown-netbsd2.0.1 > Unrecognised platform: sparc64-unknown-netbsd2.0.1 > > Now, I understand that it is a rather uncommon platform but I would > like to run darcs on it. > > ghc runs fine on my other UltraSparc 10, which runs > Debian/GNU/Linux. hugs runs fine on the Sparc/NetBSD. > > I've read > http://www.haskell.org/ghc/docs/latest/html/building/sec-porting-ghc.htm l#SEC-BOOTING-FROM-HC > but it is still unclear for me. When I compile ghc on the Sparc / > Debian, no ".hc" files are produced. You really need to go through the cross-compilation process to get GHC built on your platform. Follow the instructions in section 10.2 to get an unregisterised build, and from that you can build GHC again to get a registerised version. (in theory it's possible to cross-compile straight to a registerised version since your target architecture is already supported, but we haven't gone to the trouble of testing and documenting that process, so you'd be on your own). Cheers, Simon

1 0

RE: GHC 6.4 release candidates available [GHCi loads incorrectly]
by Simon Marlow 14 Feb '05

14 Feb '05

On 11 February 2005 14:10, Simon David Foster wrote: > And one other niggle, if you try and load a module which doesn't exist > with :m, it doesn't load it, but it still appends it to command-line; > > Prelude> :m + My.Module > > Top level: > Failed to load interface for `My.Module': > Could not find module `My.Module': > use -v to see a list of the files searched for > Prelude My.Module> Another good bug, now fixed. Keep em coming! Cheers, Simon

1 0

RE: Problem when compiling ghc-6.4 with itself
by Simon Marlow 14 Feb '05

14 Feb '05

On 12 February 2005 18:30, Alain Cremieux wrote: > When compiling ghc-6.4.20050211 with itself, I get : > > /usr/local/bin/ghc -M -optdep-f -optdep.depend -osuf o -H16m -O > -i../../lib/compat -Rghc-timing -Wall Main.hs > ../../lib/compat/Compat/RawSystem.hs:19: ../../includes/ghcconfig.h: > No such file or directory > > > I verified the version of ghc : > > /usr/local/bin/ghc --version > The Glorious Glasgow Haskell Compilation System, version 6.4.20050211 Thanks, I've just fixed this. Cheers, Simon

1 0

RE: Can't install package
by Simon Marlow 14 Feb '05

14 Feb '05

On 14 February 2005 14:42, Dmitri Pissarenko wrote: > I get the error message > > Reading package info from "javavm.ghc-pkg" > Fail: Unexpected token > > What is wrong in javavm.ghc-pkg? You have: extra_ld_opts = [ "-Wl,-rpath,c:/Programme/haskell-jvm-bridge-0.3-RC1/lib/"-L ] } That -L at the end looks like the problem. Cheers, Simon

2 1

Can't install package
by Dmitri Pissarenko 14 Feb '05

14 Feb '05

Hello! I am trying to install the package for Haskell-JVM bridge (see http://sourceforge.net/projects/jvm-bridge) I have problems with gch-pkg. When I enter ghc-pkg -a -i javavm.ghc-pkg where javavm.ghc-pkg is the file given in the attachment, I get the error message Reading package info from "javavm.ghc-pkg" Fail: Unexpected token What is wrong in javavm.ghc-pkg? TIA Dmitri Pissarenko -- Dmitri Pissarenko Software Engineer http://dapissarenko.com

1 0

RE: GHC 6.4 release candidates available [GHCi reloads incorrectly]
by Simon Marlow 14 Feb '05

14 Feb '05

On 11 February 2005 13:50, Simon David Foster wrote: > If I have two simple modules, Module1 and Module2 like this; > > module Module1 where > f = "hello" > > module Module2 where > import Module1 > > I load up Module2 in GHCi, and I can evaluate f in Module1; > > Compiling Module1 ( ./Module1.hs, interpreted ) > Compiling Module2 ( Module2.hs, interpreted ) > Ok, modules loaded: Module2, Module1. > *Module2> f > "hello" > > Now I change Module1 to > > module Module1 where > f = "hello2" > > and reload; this happens in the GHC 6.4 RC: > > *Module2> :r > Compiling Module1 ( ./Module1.hs, interpreted ) > Skipping Module2 ( Module2.hs, interpreted ) > Ok, modules loaded: Module2, Module1. > Prelude Module2> Thanks, good bug. Now fixed. Cheers, Simon

1 0

RE: GHC 6.4 release candidates available
by Simon Marlow 14 Feb '05

14 Feb '05

On 12 February 2005 08:13, John Meacham wrote: > System.Posix.Types.CClock and > System.Posix.Types.CTime > seem to be missing instances for 'Integral' as they used to have. Yes, these aren't guaranteed to be integral types according to the C99 spec. See revision 1.22 of libraries/base/Foreign/C/Types.hs for details. Cheers, Simon

1 0

RE: GHC 6.4 release candidates available
by Simon Marlow 14 Feb '05

14 Feb '05

On 12 February 2005 07:32, John Meacham wrote: > On Fri, Feb 11, 2005 at 10:49:56AM -0000, Simon Marlow wrote: >> GHC has warned you about a module clash, for which you should be >> grateful :-) This could have lead to strange link-time errors, or >> even crashes, if you had used a library module which depended on the >> other PackedString. >> >> The golden rule is (from the new section on packages in the GHC >> User's Guide): >> >> There must be no overlaps in the modules provided by all of the >> exposed packages, and the packages they depend on, and so on. >> >> PackedString (not Data.PackedString) is indeed a member of the >> lang-1.0 package. This normally wouldn't be a problem, because lang >> is hiden. However, if lang is a dependency of some other exposed >> package, then it becomes part of your program, and hence its modules >> cannot overlap with any others. What other packages are you using? > > Ah, changing some code to use the hierarchical libraries and getting > rid of my other package imports seems to have fixed things. cool. > Does this mean I have been getting silent brokeness in the past due > to the nameing conflict? Probably not, but you've been walking on thin ice. Cheers, Simon

1 0

Problem when compiling ghc-6.4 with itself
by Alain Cremieux 12 Feb '05

12 Feb '05

When compiling ghc-6.4.20050211 with itself, I get : /usr/local/bin/ghc -M -optdep-f -optdep.depend -osuf o -H16m -O -i../../lib/compat -Rghc-timing -Wall Main.hs ../../lib/compat/Compat/RawSystem.hs:19: ../../includes/ghcconfig.h: No such file or directory I verified the version of ghc : /usr/local/bin/ghc --version The Glorious Glasgow Haskell Compilation System, version 6.4.20050211 Alain

1 0