[Haskell-cafe] ByteString install issues with GHC 7.0.3 on Windows 7

[Ralph Hodgson]

Resolved my problems by going after later versions of ByteString:

 

>cabal install bytestring-0.9.2.0

Resolving dependencies...

cabal: bytestring.cabal:70: The 'type' field is required for test suites.
The

available test types are: exitcode-stdio-1.0

cabal: Error: some packages failed to install:

bytestring-0.9.2.0 failed during the configure step. The exception was:

ExitFailure 1

 

That did not work, but the following:

 

>cabal install bytestring-0.9.1.10

Resolving dependencies...

No packages to be installed. All the requested packages are already
installed.

If you want to reinstall anyway then use the --reinstall flag.

 

tells me that I already had a working version. I was chasing the wrong
problem. 

 

Looking at my BlazeHtml code again, there were imports declared as follows:

 

> import Prelude hiding (head, id, div)

> import Text.Blaze.Html4.Strict as H hiding (map)

> import Text.Blaze.Html4.Strict.Attributes as A

> import Control.Monad

> import Data.Monoid (Monoid, mappend, mempty, mconcat)

> import Text.Blaze.Renderer.Utf8 (renderHtml)

>  import Data.ByteString.UTF8 as B

 

The last import was the problem. Something changed in the libraries to make
this 'UTF8' line break. I worked around this for now.

 

Need to research some more, quick glance at the bytestring library versions
suggest 'Char8' not 'UTF8' .  However Data.ByteString.UTF8 is in the
utf8-string-0.3 library
(http://hackage.haskell.org/packages/archive/utf8-string/0.3/doc/html/Data-B
yteString-UTF8.html).

 

So my question becomes "Can someone tell me if there are notes somewhere on
the state of play of the UTF8 ByteString Libraries"

 

Ralph Hodgson,  <http://twitter.com/ralphtq> @ralphtq

 

From: haskell-cafe-bounces at haskell.org
[mailto:haskell-cafe-bounces at haskell.org] On Behalf Of Ralph Hodgson
Sent: Saturday, October 01, 2011 8:31 PM
To: haskell-cafe at haskell.org
Subject: [Haskell-cafe] ByteString install issues with GHC 7.0.3 on Windows
7

 

This morning I was successfully running BlazeHtml on Windows 7. Then I
installed some libraries from other packages and BlazeHtml broke.

 

I then decided to go from ghc 6.12.1 to ghc 7.0.3 and reinstall everything.

 

BlazeHtml installed OK. But my program also needed ByteString. So I did the
following:

 

First I tried the stable version:

 

>cabal install bytestring-0.9.1.4

Resolving dependencies...

Configuring bytestring-0.9.1.4...

Preprocessing library bytestring-0.9.1.4...

Building bytestring-0.9.1.4...

 

Data\ByteString.hs:3:24:

    Cannot parse LANGUAGE pragma

    Expecting comma-separated list of language options,

    each starting with a capital letter

      E.g. {-# LANGUAGE RecordPuns, Generics #-}

cabal: Error: some packages failed to install:

bytestring-0.9.1.4 failed during the building phase. The exception was:

ExitFailure 1

 

I am not experienced enough to fix this, so I tried a previous ByteString
version:

 

>cabal install bytestring-0.9.1.3

Resolving dependencies...

Configuring bytestring-0.9.1.3...

Preprocessing library bytestring-0.9.1.3...

Building bytestring-0.9.1.3...

[1 of 8] Compiling Data.ByteString.Fusion ( Data\ByteString\Fusion.hs,
dist\buil

d\Data\ByteString\Fusion.o )

[2 of 8] Compiling Data.ByteString.Internal ( Data\ByteString\Internal.hs,
dist\

build\Data\ByteString\Internal.o )

 

Data\ByteString\Internal.hs:79:42:

    Module `GHC.IOBase' does not export `RawBuffer'

cabal: Error: some packages failed to install:

bytestring-0.9.1.3 failed during the building phase. The exception was:

ExitFailure 1

 

No joy.

 

Help appreciated.

 

May try all this on my MAC tomorrow.

 

Ralph Hodgson,  <http://twitter.com/ralphtq> @ralphtq

Mobile Phone: +1 781-789-1664

 

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