Re: 64-bit version of Lilypond?

[Knut Petersen]

> > Could anyone describe the process GUB uses to produce the current
> > macOS installer?  Maybe at least a starting point for research on
> > 64-bit macOS builds could be determined.  Or at a "guided tour" of
> > GUB sources in this area, to help newcomers to the code understand
> > what they'll be looking at.
> We don't have that yet, sorry.  The process of providing 64bit support
> would start with defining `darwin-64' as an allowed platform to build
> on and to build for, then looking for a suitable Apple SDK for
> compilation and installation.[*] All follow-up problems probably have
> to be solved case by case.

I think I first would look for the necessary tools, try to build them outside of gub, 
cross-build some kind of "hello world" app and test the result on a mac.

Only if we have a toolset that works outside of gub  the work needed to 
construct a new build platform inside of gub is justified.

A few links:

Maybe this toolkit might be usable: https://github.com/tpoechtrager/osxcross

Some useful information about gcc as a crosscompiler 
https://gcc.gnu.org/bugzilla//show_bug.cgi?id=50229

Knut