GHC 8.0.1-rc4 source tarball availability

George Colpitts george.colpitts at
Sun Apr 24 00:40:49 UTC 2016

Definitely more complicated than I thought. :)

It also seems as if Xcode has changed in that I used to be able to install
command line tools from Xcode and did. However in Xcode 7.3 Preferences->
Components implies I already have it.

I guess the best thing would be for configure to figure all this out and do
the right thing. I'm guessing that is not easy and I don't believe it is
critical for the release of 8.0. The second best thing to do would be to
have the error message suggest two possible workaround/fixes with an
explanation that one is for people with full Xcode, the other for people
with only XCode command line tools.

In any case I trust in your judgement and that of other ghc developers with
more experience than me to do the right thing. I wish I could be more


On Sat, Apr 23, 2016 at 7:49 PM Ben Gamari <ben at> wrote:

> George Colpitts <george.colpitts at> writes:
> > The error message should be changed from
> >
> >       Workaround: You may want to pass '--with-nm=nm-classic' to
> > 'configure'.
> >
> > to
> >
> >        Workaround: You may want to pass '--with-nm=$(xcode-select
> > -p)/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm-classic' to
> 'configure'.
> >
> > Once I did that (as documented in
> I
> > was able to do a build
> >
> Hmm, although I just checked on our OS X test box (which has the
> command-line tools installed, not full XCode) and it seems that the
> /Library/Developer/CommandLineTools/Toolchains directory doesn't exist.
> Presumably this is a (rather unfortunate) difference between full XCode
> and the command-line package. Do you know whether there is some advice
> that we might be able to offer that will work in both cases?
> If not I suspect we should just go with your suggestion; the full-XCode
> case is the far more likely of the two.
> Cheers,
> - Ben
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