| The HEAD version of DPH might work with ghc-7.6 right now, but we don't
| expect it to in the future.
Indeed. That's entirely reasonable. I started off building the ghc-7.6 branch
by saying
sync-all checkout ghc-7.6
to get compatible compilers and libraries. But for
dph
vector
random
there *is* no ghc-7.6 branch, so I had to use master.
So the question (for Ben, Manuel) is this: which branch of DPH should one use
with ghc-7.6? Maybe the answer is "none", in which case we can be careful
a) to ignore DPH when testing the ghc-7.6 branch
b) to tell users that they should not attempt to use DPH with ghc 7.6
Is that the idea? Or is there a version that should work?
For vector and random the same questions apply, but since we simply have
lagging git repos for them we can create a ghc-7.6 branch. Did you
deliberately not do that, Ian?
Simon
| -----Original Message-----
| From: Ben Lippmeier [mailto:b...@ouroborus.net]
| Sent: 06 December 2012 02:06
| To: Ian Lynagh
| Cc: cvs-ghc@haskell.org list; Simon Peyton-Jones; Manuel M T Chakravarty
| Subject: Re: GHC 7.6 failes to build
|
|
| On 06/12/2012, at 5:19 AM, Ian Lynagh wrote:
|
| > On Wed, Dec 05, 2012 at 05:49:03PM +0000, Simon Peyton-Jones wrote:
| >>
| >> validate from scratch on Linux on the 7.6 branch fails thus in dph.
| >> My validate.mk is htis
| >>
| >> I will move dph out of the way for now, but what's wrong?
| >
| > Hmm, we don't build DPH in the 7.6 branch by default, and I recently
| > bumped HEAD's base version and updated DPH to match. For some reason
| > all the DPH deps are of the form x.y.*, which means 7.6's base doesn't
| > satisfy the dependency.
| >
| > Ben, Manuel, is there a reason the dependencies are in that form? Is
| > the HEAD DPH supposed to work with the GHC 7.6 branch?
|
| No. The DPH libraries for a particular GHC branch are only expected to
| work with that branch. The DPH libraries are tied to a particular
| version of GHC, because they depend so much on properties of the
| vectoriser.
|
| I've been using a dependency on the base package as a proxy for the GHC
| version number. If you bump the base package version then you'll need to
| make a ghc-7.6 branch for DPH, like you've been doing for the other
| libraries.
|
| The HEAD version of DPH might work with ghc-7.6 right now, but we don't
| expect it to in the future.
|
| Is that ok?
|
| Ben.
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