On 9/23/07, Isaac Dupree
Bulat Ziganshin wrote:
Hello David,
Sunday, September 23, 2007, 10:28:41 PM, you wrote:
Let's say I have more than one Haskell implementation on my computer, e.g. GHC 6.6, GHC 6.7, and Hugs. (In MacPorts, these are the ghc, ghc-devel, and hugs packages, respectively.)
Let's further say that I want to install the Edison API package. Obviously, to get make it available in all three environments, the library needs to be compiled twice and installed three times.
:) it should be compiled three times, too. different ghc versions has been never intended to be binary-compatible
I thought so at first, too... after a minute I realized it probably means that Hugs doesn't _compile_ anything in advance of installation. So I guess the number is right at least, depending what "compile" is taken to mean.
I meant compilation in the sense of producing object code. Of course,
you still have to build the code for hugs (preprocessing and such), so
I guess the fact that you aren't actually compiling the code is
irrelevant.
My point was that I'm not aware of any packaging systems that don't
have a global "installed"/"not installed" bit for each package, which
isn't suited to handling Haskell libraries.
--
Dave Menendez