duncan.coutts at worc.ox.ac.uk
Thu Oct 5 08:29:38 EDT 2006
On Thu, 2006-10-05 at 10:55 +0100, Simon Marlow wrote:
> Ian Lynagh wrote:
> > On Tue, Oct 03, 2006 at 04:59:58PM -0400, Ravi Nanavati wrote:
> >>If I understand the way things work, GHC decides whether or not to emit
> >>the -fno-unit-at-a-time flag in -fvia-C compilation based on whether or
> >>not the gcc used when compiling GHC supported the flag or not. I'm
> >>running into trouble using precompiled GHC snapshots (that were compiled
> >>on machines whose gcc supports -fno-unit-at-a-time) on a machine whose
> >>gcc doesn't support it (a gcc 3.2 version, I believe).
> >>Is there any way force GHC to not emit the flag (short of recompiling
> >>from source)?
> It would be nice if these kind of configuration settings were in some file
> rather than being baked into GHC. I think it might be possible to pass in these
> flags via the package configuration for the rts package, for example.
A few months back I looked at doing just this. Having a ghc-reconf tool
that would update the flags in the rts package to reflect the current
environment (basically the gcc version). I didn't finish it but my code
is still around so if anyone wants to pick it up just ask me.
More information about the Glasgow-haskell-users