Thanks for suggestions. Having /usr/bin scripts seems to work for me, Although virthualenv looks promising for package dependency management. But when run virthualenv with --ghc=tarball, it creates copy of GHC suite inside a project whose size is about 700MB.
On 2012/02/07, at 8:41, Brandon Allbery <[email protected]> wrote: > On Mon, Feb 6, 2012 at 18:27, HASHIMOTO, Yusaku <[email protected]> wrote: > Hi, I wrote a simple shell function for switching GHC version on the > system. It works only under Mac OSX, and only switch GHCs installed > via .pkg installers. It's useful to experiment newer features without > worrying breaking environment. > > FWIW I'd consider two alternatives: > > (1) forgo links entirely and use something like > http://modules.sourceforge.net/ to manage $PATH; > > (2) instead of using the bundled create-links, have the /usr/bin scripts > check a per-user symlink and fall back to a system one; running the select > script as root sets the system symlink, running as user sets the per-user > symlink. > > -- > brandon s allbery [email protected] > wandering unix systems administrator (available) (412) 475-9364 vm/sms >
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