I installed Haskell Platform 7.10.2-a1 64bit-signed.pkg on a MacBook Pro running OS X 10.11.1.
It brought up a nice display in Safari. When I click on 'Libraries' and the 'Codec.Compression.Zlib', i get a page of Safari can't find the file with the url file:///Library/Haskell/ghc-7.10.2-x86_64/lib/zlib-0.5.4.2/doc/html/Codec-Compression-Zlib.html
I searched the output of "ghc-pkg" and found a bunch more missing, including vector, syb, split, parsec, parallel, QuickCheck -- 42 in all.
What did I do wrong? Thanks!
(Answer applies to version 7.10.3.)
You didn’t do anything wrong.
Yes, the Haskell Platform 7.10.3 64bit.pkg installer really is missing HTML Haddock documentation for all non-GHC packages. You can quickly verify this by opening up the installer, choosing File > Show Files (⌘I), and searching for Data-Text.html; the only result will be .../src/Data-Text.html, which is just the prettyprinted source code (produced by hscolour), not the Haddock documentation.
I'm not sure why the documentation is missing from the official packages. As a workaround you could do your own build of Haskell Platform. When I tried it, it worked for me, and all the documentation was there.
git clone https://github.com/haskell/haskell-platform.git
cd haskell-platform
git checkout tags/7.10.3
curl -OL http://downloads.haskell.org/~ghc/7.10.3/ghc-7.10.3-x86_64-apple-darwin.tar.xz
./platform.sh ghc-7.10.3-x86_64-apple-darwin.tar.xz
After several minutes, the package ended up in the build/product directory.