[darcs-users] Re: 0.9.12 is out!

[Donald Bruce Stewart]

andres:
> > David Roundy writes:
> > 
> >  > you get an error if use -optc with any flag that is
> >  > recognized by ghc itself.
> > 
> > Are you certain about this? I have used the patch I pushed
> > moments ago with a variety of $CFLAGS settings -- including '-O'
> > and friends -- and I didn't get any errors with ghc 5.04.3.
> > 
> > As far as I can tell, just prefixing all flags in $CFLAGS with
> > '-optc' works just fine.
> 
> That's my experience, too. However, I've heard from someone else
> that he had problems with a "-O3" in CFLAGS. And I discovered that
> there are subtle differences in the handling of "-optc" between
> ghc-5.04.3 and ghc-6.0. For instance, in 5.04.3, this works for
> me:
> 
> -optc"-march=pentium -O3 -pipe"
> 
> It does not work with ghc-6.0, though. Maybe this should be taken
> to the GHC mailing list, as it's a general problem ...

This is news to me. On a Linux box:

    $ ghc-6.0 -optc "-march=pentium -O3 -pipe" Test.hs

    $ ghc-5.04.2 -optc "-march=pentium -O3 -pipe" Test.hs

    $ ghc-5.04 -optc "-march=pentium -O3 -pipe" Test.hs 

All worked fine. Quoting may have been the issue.

-- Don