Difference between revisions of "Diagrams/GHC7.6"

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-As of this writing (13 Nov 2012), the most recently released versions of diagrams (0.5.x) do ''not'' build under GHC 7.6.
-'''If you get a message about installing transformers-0.2.2.0, don't do it!''' Here's what's happening: the latest version of diagrams on Hackage says it requires base-4.5 or earlier.  GHC 7.6 comes with base-4.6, so when you request to install diagrams of course cabal rejects the latest version.  But here's where things go screwy: cabal then starts looking back in time to try to find an ''earlier'' version of diagrams which "works".  It finds diagrams-0.2.2.3, which is quite old and happens to be the last time that the base dependency did not have an upper bound.
-However, the development versions of diagrams on github work under GHC 7.6.  To build from github:
-    cabal update                      # make sure you have the latest gtk2hs packages
-    cabal install gtk2hs-buildtools   # if necessary
-    mkdir diagrams && cd diagrams
-    git clone https://github.com/diagrams/diagrams-core.git core
-    git clone https://github.com/diagrams/diagrams-lib.git lib
-    git clone https://github.com/diagrams/diagrams-cairo.git cairo
-    git clone https://github.com/diagrams/diagrams-svg.git svg
-    git clone https://github.com/diagrams/diagrams-contrib.git contrib
-    cabal install core/ lib/ cairo/ svg/ contrib/  # or just pick one of {cairo,svg}

Revision as of 14:20, 6 February 2021