filter -threaded when profiling is on

[gbacon]

As a service to the community, please filter -threaded when profiling is on.

[duncan]

For context, GHC rejects the combination of threaded and profiling. Some projects specify ghc-options: -threaded which means when some other developer comes along to profile this executable they bump into the error.

So perhaps Cabal should just filter out the option when building profiling executables and warn that it's doing so, since changing to the single threaded rts may have other behavioural effects.

[mornfall]

This breaks --enable-*-profiling for darcs as well. Since the autoconf-based build knows about this and we are trying to move to purely cabal-based solution, I use this as a justification for the priority bump. Thanks Duncan!

[duncan]

 http://hackage.haskell.org/trac/ghc/ticket/886 It seems that this got fixed in 6.10 so we should only filter it for ghc < 6.10.

[alexeevg]

patch that fixes #317

[alexeevg]

darcs send doesn't work on my system, so I thought I'd attach my patch here

[duncan]

Thu Jan 22 01:44:25 GMT 2009  Duncan Coutts <duncan@haskell.org>
  * filter -threaded when profiling is on
  Fixes #317. Based on a patch by gleb.alexeev@gmail.com