George Colpitts
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 https://ghc.haskell.org/ticket/11744) 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