I’d also be interested in getting GHC running smoothly in Haiku.
Sorry, I've been out of action for the past 6-7 weeks, including no Internet access. I've only just got back into the digital world today, and have a lot of catch-up to do with Haiku.
Once I'm back on track with everything Haiku, I'll get an updated GHC build ready.
As for pandoc, there has been some work on Cabal recently to fix an issue with building pandoc when using dynamic linking. Hopefully I'll be able to pull in these changes to Cabal and release GHC via HaikuPorts.
You’re a legend! Please drop by this thread again once you’ve got the GHC build uploaded. I’m in the early stages of familiarizing myself with the GHC source code because I have an idea for an optimization I’d like to try and implement, and it would be neat to be able to test my code for that on Haiku as well.