I'm guessing that is indeed the problem, though I cannot reproduce the error (but I'm using Cabal-1.8.0.2). Assuming this is the cause of the problem, what is the best correction? Encoding the cabal file as UTF-8 or removing the accent? Do earlier versions of cabal deal well with UTF-8?... Cheers, Pedro On Tue, Feb 23, 2010 at 16:05, Bayley, Alistair

wrote:

Just a wild guess, but the package description has this non-ascii text:

author: Ralf Lämmel, Simon Peyton Jones

It could well be Latin-1 encoded, rather than UTF8.

Try editing the author field to this:

author: Ralf Laemmel, Simon Peyton Jones

and rebuilding/installing.

...

-----Original Message----- From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell-users-bounces@haskell.org] On Behalf Of Simon Peyton-Jones Sent: 23 February 2010 14:32 To: GHC users Cc: cvs-ghc@haskell.org Subject: FW: Installing syb(-0.1.03) package in head version of Haskell

Friends

Can anyone help Kathleen out? She has a cabal-install issue. I think she's on a Mac.

Many thanks

Simon

From: Kathleen Fisher [mailto:kathleen.fisher@gmail.com] Sent: 16 February 2010 22:54 To: Simon Peyton-Jones Subject: Fwd: Installing syb(-0.1.03) package in head version of Haskell

Hi Simon,

I'm trying to get the PADS file we were working on compiling under the HEAD version of Haskell, but I'm having trouble getting the Data.Generics module to install. I sent the question below to the libraries@haskell.org last week, but I haven't seen any replies. Is that the right address? Or is there a different place to ask such questions?

Thanks for any pointers!

Kathleen

Begin forwarded message:

From: Kathleen Fisher

Date: February 11, 2010 2:28:20 PM PST

To: libraries@haskell.org

Subject: Installing syb(-0.1.03) package in head version of Haskell

Hi all,

I'm trying to get a program that uses the Data.Generics module to compile under the head version of GHC, but I am having trouble getting the syb package installed.

I believe I am using the most recent version of cabal:

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/ .cabal/bin/cabal --version

cabal-install version 0.8.0

using version 1.8.0.1 of the Cabal library

When I ask cabal to install the syb package, I get the following error:

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/ .cabal/bin/cabal install -w ~/sw/ghc-head/bin/ghc

Resolving dependencies...

Downloading mtl-1.1.0.2...

Configuring mtl-1.1.0.2...

Preprocessing library mtl-1.1.0.2...

...

Registering syb-0.1.0.3...

cabal: ghc-pkg: <stdin>: hGetContents: invalid argument (invalid UTF-8 byte

sequence)

cabal: Error: some packages failed to install:

language-c-quote-0.1 depends on syb-0.1.0.3 which failed to install.

syb-0.1.0.3 failed during the building phase. The exception was:

exit: ExitFailure 1

The full trace is included below.

Here's the version information for the ghc I am running.

Kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/ sw/ghc-head/bin/ghc --version

The Glorious Glasgow Haskell Compilation System, version 6.13.20100210

The cabal website suggests sending questions to this list...

Any suggestions for how to fix this problem?

Kathleen

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/ .cabal/bin/cabal install -w ~/sw/ghc-head/bin/ghc

Resolving dependencies...

Downloading mtl-1.1.0.2...

Configuring mtl-1.1.0.2...

Preprocessing library mtl-1.1.0.2...

Building mtl-1.1.0.2...

...stuff deleted...

src/Data/Generics.hs:40:1:

Warning: The import of `Prelude' is redundant

except perhaps to import instances from `Prelude'

To import instances alone, use: import Prelude()

Registering syb-0.1.0.3...

cabal: ghc-pkg: <stdin>: hGetContents: invalid argument (invalid UTF-8 byte

sequence)

cabal: Error: some packages failed to install:

language-c-quote-0.1 depends on syb-0.1.0.3 which failed to install.

syb-0.1.0.3 failed during the building phase. The exception was:

exit: ExitFailure 1

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On Tue, Feb 23, 2010 at 03:05:56PM -0000, Bayley, Alistair wrote:

Just a wild guess, but the package description has this non-ascii text:

author: Ralf Lämmel, Simon Peyton Jones

It could well be Latin-1 encoded, rather than UTF8.

No, syb-0.1.0.3/syb.cabal is UTF-8-encoded (conforming to the Cabal docs).

Try editing the author field to this:

author: Ralf Laemmel, Simon Peyton Jones

and rebuilding/installing.

If it's a ghc-pkg problem, that might work.

Ross Paterson schrieb:

On Tue, Feb 23, 2010 at 03:05:56PM -0000, Bayley, Alistair wrote:

...

Just a wild guess, but the package description has this non-ascii text:

author: Ralf Lämmel, Simon Peyton Jones

It could well be Latin-1 encoded, rather than UTF8.

No, syb-0.1.0.3/syb.cabal is UTF-8-encoded (conforming to the Cabal docs).

My guess would be that the "locale" is not properly set. The environment variable LANG should be set to something shown by "locale -a" (i.e en_GB). Other LC_* variables should not be set. The variables should not be "C" or "POSIX". (I was able to install syb-0.1.0.3 without a problem) Cheers Christian

...

Try editing the author field to this:

author: Ralf Laemmel, Simon Peyton Jones

and rebuilding/installing.

If it's a ghc-pkg problem, that might work.

On 23/02/10 18:46, Christian Maeder wrote:

Ross Paterson schrieb:

...

On Tue, Feb 23, 2010 at 03:05:56PM -0000, Bayley, Alistair wrote:

...

Just a wild guess, but the package description has this non-ascii text:

author: Ralf Lämmel, Simon Peyton Jones

It could well be Latin-1 encoded, rather than UTF8.

No, syb-0.1.0.3/syb.cabal is UTF-8-encoded (conforming to the Cabal docs).

My guess would be that the "locale" is not properly set. The environment variable LANG should be set to something shown by "locale -a" (i.e en_GB). Other LC_* variables should not be set. The variables should not be "C" or "POSIX".

(I was able to install syb-0.1.0.3 without a problem)

Both Cabal and ghc-pkg explicitly use UTF-8 for handling .cabal and package configuration files, so if you end up with a Latin-1 file in your package database then something has gone wrong. If anyone can reproduce this problem then please submit a ticket. Cheers, Simon

On 24/02/2010 10:07, Christian Maeder wrote:

Simon Marlow schrieb:

...

On 23/02/10 18:46, Christian Maeder wrote:

...

Ross Paterson schrieb:

...

On Tue, Feb 23, 2010 at 03:05:56PM -0000, Bayley, Alistair wrote:

...

Just a wild guess, but the package description has this non-ascii text:

author: Ralf Lämmel, Simon Peyton Jones

It could well be Latin-1 encoded, rather than UTF8.

No, syb-0.1.0.3/syb.cabal is UTF-8-encoded (conforming to the Cabal docs).

My guess would be that the "locale" is not properly set. The environment variable LANG should be set to something shown by "locale -a" (i.e en_GB). Other LC_* variables should not be set. The variables should not be "C" or "POSIX".

(I was able to install syb-0.1.0.3 without a problem)

Both Cabal and ghc-pkg explicitly use UTF-8 for handling .cabal and package configuration files, so if you end up with a Latin-1 file in your package database then something has gone wrong. If anyone can reproduce this problem then please submit a ticket.

Indeed, I have a latin-1 file

/local/maeder/lib/ghc-6.13.20100211/package.conf.d/syb-0.1.0.3-2d8f18fd3343792a85816b191d973cea.conf: ISO-8859 English text

and my (accidental) setting is:

LANG=de_DE@euro LANGUAGE= LC_ALL=C

And you got that by just 'cabal install syb'? What version of cabal-install? (cabal --version) Cheers, Simon

On 24/02/2010 11:35, Christian Maeder wrote:

Simon Marlow schrieb:

...

...

...

Both Cabal and ghc-pkg explicitly use UTF-8 for handling .cabal and package configuration files, so if you end up with a Latin-1 file in your package database then something has gone wrong. If anyone can reproduce this problem then please submit a ticket.

Indeed, I have a latin-1 file

/local/maeder/lib/ghc-6.13.20100211/package.conf.d/syb-0.1.0.3-2d8f18fd3343792a85816b191d973cea.conf:

ISO-8859 English text

and my (accidental) setting is:

LANG=de_DE@euro LANGUAGE= LC_ALL=C

And you got that by just 'cabal install syb'? What version of cabal-install? (cabal --version)

No, just by the Setup, configure, build, install procedure.

"ghc-pkg describe syb" and "ghc-pkg dump" create UTF-8 output.

Aha, I think I see where the bug is. Thanks folks, we'll have it fixed in 6.12.2. In the meantime you should use a UTF-8 locale, eg. LANG=en_US.utf8. Cheers, Simon

On 24/02/2010 12:28, Christian Maeder wrote:

...

...

...

And you got that by just 'cabal install syb'? What version of cabal-install? (cabal --version)

No, just by the Setup, configure, build, install procedure.

"ghc-pkg describe syb" and "ghc-pkg dump" create UTF-8 output.

Aha, I think I see where the bug is. Thanks folks, we'll have it fixed in 6.12.2. In the meantime you should use a UTF-8 locale, eg. LANG=en_US.utf8.

It is not sufficient for me to reinstall this package with this utf8 setting. (I think ghc-pkg needs to be fixed or maybe recompiled under utf8.)

There was a missing hSetEncoding, so that ghc-pkg is writing this file using the current locale rather than UTF-8, but reading it back as UTF-8. So I'm surprised that temporarily setting your locale to UTF-8 doesn't work around it - what happens? Cheers, Simon

On 24/02/2010 14:08, Christian Maeder wrote:

Simon Marlow schrieb:

...

On 24/02/2010 12:28, Christian Maeder wrote: [...]

...

It is not sufficient for me to reinstall this package with this utf8 setting. (I think ghc-pkg needs to be fixed or maybe recompiled under utf8.)

There was a missing hSetEncoding, so that ghc-pkg is writing this file using the current locale rather than UTF-8, but reading it back as UTF-8. So I'm surprised that temporarily setting your locale to UTF-8 doesn't work around it - what happens?

No idea, the last step of installing is:

Registering syb-0.1.0.3... /local/maeder/bin/ghc-pkg update - --global --no-user-package-conf -v2

The standard input passed to ghc-pkg is utf8 coded (independent of my LANG setting), but the output file written syb-0.1.0.3-2d8f18fd3343792a85816b191d973cea.conf is always ISO-8859.

HTH Christian

It does, thanks. I now realise that the code is using binary mode accidentally, in fact it has an instance of this bug http://hackage.haskell.org/trac/ghc/ticket/3832 because ghc-pkg contains a copy of the code of openTempFile. I'll fix it to use openTempFileWithDefaultPermissions, which does the right thing. Cheers, Simon