On 27 November 2010 10:41, Paul Johnson <paul@cogito.org.uk> wrote:

I installed gtk2hs-buildtools as per the Leksah page, and then tried to install Leksah itself. I got:

[root@eiffel download]# cabal install leksah
Resolving dependencies...
cabal: cannot configure leksah-server-0.8.0.8. It requires ghc>=6.10.1&&
<6.13
There is no available version of ghc that satisfies>=6.10.1&& <6.13

But there is...

[root@eiffel download]# ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.12.3

I don't know whether this is a problem with the GHC installation or the Leksah build. I'm running Fedora 14 with GHC installed through the package manager.

Interesting. Perhaps Cabal isn't looking at the same GHC version. If you run cabal install with --version passed to GHC, GHC will just output the version instead of doing any compiling and the install will stop. You can see what version Cabal actually uses. Maybe it's different?