October 2002 - Hugs-Bugs

WinHugs Problem
by Mark Cummins 07 Nov '02

07 Nov '02

Hi, Im having trouble with WinHugs on Windows ME. When I installed it a few days ago it worked fine. Now it crashes on startup with "Winhugs has caused an error in Winhugs.EXE". I've uninstalled any software I installed after Hugs, and reinstalled Hugs multiple times, but I still get exactly the same error. The command line Hugs works fine. Mark.

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winhugs can't start
by Phat Tran 07 Nov '02

07 Nov '02

Hi! I have a strange problem after a confliction. Well first, I had winhugs in edit-mode then I opened the same file with Jcreator and did some changes and tried to reload the haskell program. At this point there was some thing wrong that it adwised me that it have to turn winhugs off. This was don't automatically by win2000. After this apposal the same precedure kept repeating. I don't know if I have to reinstall my windows or if there is a better way to fix this. I have already try reinstall Hugs98 but have not solve anything. So if you can help me it would be very nice. Sincerely, Phat

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Norton AntiVirus detected a virus in a message you sent. The inf ected attachment was deleted.
by NAV for Microsoft Exchange-HK01 31 Oct '02

31 Oct '02

Recipient of the infected attachment: Parshid Falahati\Inbox Subject of the message: Hi,welcome to my hometown One or more attachments were deleted Attachment src.bat was Deleted for the following reasons: Virus W32.Klez.H@mm was found.

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Norton AntiVirus detected a virus in a message you sent. The inf ected attachment was deleted.
by NAV for Microsoft Exchange-HK01 31 Oct '02

31 Oct '02

Recipient of the infected attachment: Parshid Falahati\Inbox Subject of the message: Hi,welcome to my hometown One or more attachments were deleted Attachment src.bat was Deleted for the following reasons: Virus W32.Klez.H@mm was found.

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loading multiple modules in MacOS X
by Robby Griffin 31 Oct '02

31 Oct '02

The dlsym() replacement for MacOS X doesn't use its "handle" parameter, so it has no hope of always finding the proper initModule function from among multiple modules. I noticed this when trying the graphics library, which loads two modules; the second one fails with unknown primitive references. The attached patch works on my MacOS X 10.2 system, but I'm not sure how compatible this is with other dyld implementations. --Robby

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X11 graphics on MacOS X
by Robby Griffin 31 Oct '02

31 Oct '02

Hmm. I doubt this is the perfect way to build the graphics library for hugs on MacOS X, but it's the first thing I tried that actually worked: LDFLAGS_MKSO.Darwin = -bundle -lc /usr/lib/bundle1.o --Robby

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change in IO error messages
by Dean Herington 30 Oct '02

30 Oct '02

In the 20021021 release candidate, a newline is now appended to IO error messages, including in particular the case of (ioError (userError "user message")). I dislike this change for several reasons: * It treats IO errors differently from other exceptions. That is, (show e) for an Exception e has a newline appended for IO errors but not other exceptions. * It introduces an unnecessary inconsistency with GHC. * It breaks HUnit, which needs to manipulate error message strings. -- Dean

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export/import of fields (in RC)
by Ross Paterson 30 Oct '02

30 Oct '02

Given the modules module A(Type(..)) where data Type a = Constr { field :: a } module B where import A(field) Hugs says ERROR "B.hs" - Unknown entity "field" imported from module "A"

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import ambiguity
by Dean Herington 30 Oct '02

30 Oct '02

With the program: import Exception main = let catch = Prelude.catch in catch (print "ok") print hugs 98 version 20021021 gives: __ __ __ __ ____ ___ _________________________________________ || || || || || || ||__ Hugs 98: Based on the Haskell 98 standard ||___|| ||__|| ||__|| __|| Copyright (c) 1994-2002 ||---|| ___|| World Wide Web: http://haskell.org/hugs || || Report bugs to: hugs-bugs(a)haskell.org || || Version: 20021021 _________________________________________ Haskell 98 mode: Restart with command line option -98 to enable extensions Reading file "/stotts2/epa1/hugs98-Oct2002/rel/lib/hugs/lib/Prelude.hs": Reading file "ImportAmbiguity.hs": Reading file "/stotts2/epa1/hugs98-Oct2002/rel/lib/hugs/lib/exts/Exception.hs": Reading file "ImportAmbiguity.hs": Dependency analysis ERROR "ImportAmbiguity.hs":2 - Ambiguous variable occurrence "catch" *** Could refer to: Prelude.catch Exception.catch Exception> whereas GHC accepts the program. Which system is right? By the way, hugs98-Dec2001 gives: Reading file "ImportAmbiguity.hs": Reading file "/stotts2/epa1/hugs98-Dec2001/rel/share/hugs/lib/exts/Exception.hs": Reading file "ImportAmbiguity.hs": ERROR "ImportAmbiguity.hs" - Entity "catch" imported from module "Exception" already defined in module "Prelude"

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WinHugs Problem
by Mark Cummins 27 Oct '02

27 Oct '02

Hi, Im having trouble with WinHugs on Windows ME. When I installed it a few days ago it worked fine. Now it crashes on startup with "Winhugs has caused an error in Winhugs.EXE". I've uninstalled any software I installed after Hugs, and reinstalled Hugs multiple times, but I still get exactly the same error. The command line Hugs works fine. Mark.

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