The creation of the 'git-annex-shell' symlink was in 'postInst' hook. I combined it with the man-page installation in a 'postInst' hook and a 'postCopy' hook. I don't understand how to use the `cabal copy` command, but the examples I looked at defined both hooks. Relevant comments from the source: * man-page installation: See http://www.haskell.org/haskellwiki/Cabal/Developer-FAQ#Installing_manpages. Based on pandoc's and lhs2tex's 'Setup.installManpages' and 'postInst' hooks. My understanding: 'postCopy' is run for `cabal copy`, 'postInst' is run for `cabal inst`, and copy is not a generalized install, so you have to write two nearly identical hooks. Summary of hooks: http://www.haskell.org/cabal/release/cabal-latest/doc/API/Cabal/Distribution-Simple-UserHooks.htm-- Other people are also confused: * Bug: 'postCopy' and 'postInst' are confusing: http://hackage.haskell.org/trac/hackage/ticket/718 * A cabal maintainer suggests using 'postCopy' instead of 'postInst', because `cabal install` is `cabal copy` followed by `cabal register`: http://www.haskell.org/pipermail/libraries/2008-March/009416.html Although that sounds desirable, it's not true, as the reply and experiments indicate. * the `cabal copy` command: ???: Not sure how you're supposed to use this. E.g., when I do cabal install --prefix=/tmp/git-annex-install cabal copy --deistdir=/tmp/git-annex-copy I get the copy under /tmp/git-annex-copy/tmp/git-annex-install Also, `cabal install` fails when given a relative --prefix.