Re: Lilypond on OS X Catalina

[Hans Åberg]

> On 18 Oct 2019, at 00:30, Karlin High <address@hidden> wrote:
> 
> On 10/17/2019 5:10 PM, Allan Kinnaird via lilypond-user wrote:
>> I believe that the real question is when a 64-bit Mac binary will appear on 
>> lilypond.org <http://lilypond.org> - I would expect v2.20.0 or thereabouts. 
>> Does anyone have a solid timetable?
> 
> My current understanding is this:
> 
> There is a conflict between Apple's Software License Agreement for the XCode 
> software needed to build 64-bit Mac binaries, and the GNU General Public 
> License that LilyPond uses. The current build system cannot be adapted for 
> 64-bit without violating Apple's license.

It is only for cross-builds, and it does not matter, because later versions of 
Xcode only have Clang, not GCC proper, which LilyPond does not compile with.