On Wed, 2008-07-30 at 14:46 +0100, Simon Marlow wrote:
I don't think I understand how GHC itself is built any longer, either. What does cabal-bin do?
It's effectively a pre-compiled Setup.hs for packages that have no need for a custom Setup.hs. cabal-install does the same job for end-users, but we can't rely on having cabal-install in the GHC build system.
The point being that linking default Setup.hs scripts all the time is a waste (especially since it doesn't parallelise).
What is runghc.wrapper?
it's a template used to make a shell wrapper for a binary. There seems to be new functionality in Cabal to support this.
Ian added this the other day. I can't say I understand it yet or if it's generally applicable to all packages. Obviously the intention is to allow relocatable binaries on unix systems by using wrapper scripts. Duncan