2) theres a ghc ticket for that, its apparently partly because theres no -nowarnunwind flag or the like

On Thu, Mar 17, 2011 at 6:11 AM, Michael Vanier <mvanier42@gmail.com> wrote:

I run haskell on Mac OS X (Snow Leopard). After upgrading my Xcode installation to 4.0 I had a tricky time getting ghc working again; the version bundled with the Haskell Platform no longer works and I had to compile a recent snapshot (ghc-7.1.20110315) from source. This worked fine, but now when I compile my code I keep getting really weird warnings. For instance:

ld: warning: could not create compact unwind for .LFB3: non-standard register 5 being saved in prolog

and

SpecConstr
Function `$w$j{v s3hL} [lid]'
has one call pattern, but the limit is 0
Use -fspec-constr-count=n to set the bound
Use -dppr-debug to see specialisations
SpecConstr
Function `$w$j{v s3ic} [lid]'
has two call patterns, but the limit is 1
Use -fspec-constr-count=n to set the bound
Use -dppr-debug to see specialisations

The code seems to work, but this is quite irritating. Is there anything that can be done about these warnings?

Thanks,

Mike

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