Re: cabal-install-1.18 on GHC-6.12

On Sun, Oct 27, 2013 at 4:58 PM, Mikhail Glushenkov < the.dead.shall.rise@gmail.com> wrote:

Hi,

On Sun, Oct 27, 2013 at 9:50 PM, Henning Thielemann wrote:

...

I am trying to compile cabal-install-1.18.0.2 on GHC-6.12.1. It aborts with:

... [12 of 73] Compiling Distribution.Client.Compat.Semaphore ( Distribution/Client/Compat/Semaphore.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Compat/Semaphore.o )

Distribution/Client/Compat/Semaphore.hs:12:26: Module `Control.Exception' does not export `mask_'

That is, you must either narrow the dependency on 'base' or avoid

'mask_'.

Looks like this commit is the problem:

https://github.com/haskell/cabal/commit/877ef34712255d7c99b36eea4b9c3adfaada...

Johan, was it you who cherry-picked it from master? Wasn't 1.18 supposed to still support 6.12?

This is my fault. I don't know if it's worth another Cabal release to fix it though. 6.12 is more than 3 years old now.