On Mon, Jul 4, 2011 at 6:24 PM, anonymous <qubital@gmail.com> wrote:
No, you shouldn't need to do that.
 
Just download the Haskell Platform and GHC 7:
http://lambda.galois.com/hp-tmp/2011.2.0.1/haskell-platform-2011.2.0.1.tar.gz
http://haskell.org/ghc/dist/7.0.3/ghc-7.0.3-i386-unknown-linux.tar.bz2

Extract ghc, change into the directory, run configure, then make install as root.
After that, extract the haskell platform, change into the directory, configure, make, make install as root.
Then run cabal update.

The haskell platform is broken on Natty.
https://bugs.launchpad.net/ubuntu/+source/haskell-platform/+bug/742052


I noticed that )
I removed GHC 6 completely. Then installed platform-independent GHC 7 compiler.
Next to configure and eventually compile Haskell Platform I had to install  libgmp3-dev, zlib and OpenGL libraries.
Istall  and 'cabal update' went smoothly.
Now I got :
GHCi, version 7.0.3 

Great! Thanks!
 



On Mon, Jul 4, 2011 at 9:12 AM, Dmitri O.Kondratiev <dokondr@gmail.com> wrote:


>Adrien Haxaire adrien at adrienhaxaire.org  wrote:

>I dropped the idea of installing Haskell Platform with synaptic. I 
 >installed it manually and I don't have any problem since then.

To install GHC 7, have you  completely de-installed  GHC  6.12.3 and all related libraries ?

 
On Mon, Jul 4, 2011 at 5:04 PM, Dmitri O.Kondratiev <dokondr@gmail.com> wrote:
Hi,
I am trying to install Haskell Platform on latest Ubuntu desktop:
( uname -a:
Linux frigate 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux )

I started with installing GHC.  Ubuntu could only install version 6.12.3: without Cabal!
Now I am trying to install haskell-platform which is a separate package. Ubuntu suggests to insatll version 2010.1.0.0.1 and fails (see bellow).
What sould I do now to get GHC + Cabal? Should I:
1) De-insatll  GHC  6.12.3 and all related libraries and try then installing Haskell Platform again?
2) Should I install Caball separately and forget about Haskell Platform?
3) Provide somehow for two different installations? 

Thanks!

=== Installation errors:

This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time.

haskell-platform: Depends: ghc6 (< 6.12.1+) but 6.12.3-1ubuntu7 is to be installed
Depends: libghc6-cgi-dev (>= 3001.1.7.2) but 3001.1.7.2-1build1 is to be installed
Depends: libghc6-fgl-dev (< 5.4.2.2+) but 5.4.2.2-2build2 is to be installed
Depends: libghc6-glut-dev (< 2.1.2.1+) but 2.1.2.1-1build1 is to be installed
Depends: libghc6-haskell-src-dev (< 1.0.1.3+) but 1.0.1.3-2build1 is to be installed
Depends: libghc6-html-dev (< 1.0.1.2+) but 1.0.1.2-3build2 is to be installed
Depends: libghc6-hunit-dev (< 1.2.2.1+) but 1.2.2.1-2build2 is to be installed
Depends: libghc6-mtl-dev (< 1.1.0.2+) but 1.1.0.2-10build2 is to be installed
Depends: libghc6-network-dev (< 2.2.1.7+) but 2.2.1.7-1build2 is to be installed
Depends: libghc6-opengl-dev (< 2.2.3.0+) but 2.2.3.0-2build2 is to be installed
Depends: libghc6-parallel-dev (< 2.2.0.1+) but 2.2.0.1-1build1 is to be installed
Depends: libghc6-parsec2-dev (< 2.1.0.1+) but 2.1.0.1-2build2 is to be installed
Depends: libghc6-quickcheck2-dev (< 2.1.0.3+) but 2.1.0.3-1build2 is to be installed
Depends: libghc6-regex-base-dev (< 0.93.1+) but 0.93.1-8build1 is to be installed
Depends: libghc6-regex-compat-dev (< 0.92+) but 0.92-6build2 is to be installed
Depends: libghc6-regex-posix-dev (< 0.94.1+) but 0.94.1-2build1 is to be installed
Depends: libghc6-stm-dev (< 2.1.1.2+) but 2.1.1.2-5build2 is to be installed
Depends: libghc6-xhtml-dev (>= 3000.2.0.1) but 3000.2.0.1-6build2 is to be installed
Depends: libghc6-zlib-dev (< 0.5.2.0+) but 0.5.2.0-4build2 is to be installed
Depends: libghc6-http-dev (>= 40000009) but 40000009-2build1 is to be installed
Depends: libghc6-deepseq-dev (< 1.1.0.0+) but 1.1.0.0-2build1 is to be installed
Depends: alex (< 2.3.3+) but 2.3.3-1 is to be installed
Depends: happy (< 1.18.4-2+) but 1.18.4-2 is to be installed
Depends: haddock but it is a virtual package





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