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.

Hi, On Mon, Oct 28, 2013 at 9:52 AM, Henning Thielemann wrote:

On Mon, 28 Oct 2013, Johan Tibell wrote:

...

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.

I have three (remote) machines where I could compile and run my stuff, all of them have GHC-6.12.1 (Ubuntu 10.04 LTS). If mask_ can be easily replaced by something different, this would be nice.

You can check out the 1.18 branch from Git and revert that commit manually. -- () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments

On 28 October 2013 18:39, Herbert Valerio Riedel wrote:

Btw, are there any Linux distribution release out there which have not reached end-of-life and yet provide GHC 6.12.x as their default GHC?

(The EPEL 5 repo for RHEL5 and derivatives still has ghc-6.12.3 but RHEL5 is also getting old...: https://apps.fedoraproject.org/packages/ghc I guess Debian squeeze (oldstable) also has it... shrug)

Or put differently, how many active GHC <=6.12.x users are there, which haven't upgraded GHC but still want to upgrade Cabal & cabal-install?

Yeah that is probably the right question... My guess would be a small fraction.