Re: 64-bit version of Lilypond?

[Hans Åberg]

> On 8 Mar 2019, at 19:32, Werner LEMBERG <address@hidden> wrote:
> 
>> The lilypond-devel version [of MacPorts] lists gcc8 as a library
>> dependency,
> 
> This is because lilypond can only be compiled with gcc and not with
> clang, contrary to most other software of MacPorts.  The compiler
> whitelist of the `lilypond-devel' Portfile starts with gcc8; however,
> it will compile with all gcc versions >= 4.7.

I had in mind to use a later version of a gcc, as you had some problems with 
bugs in the earlier. So if you now can use gcc8, focus on that. It has C++14 as 
default, so then the stuff to detect problems with C++11 is probably not 
needed-there was none for C++17. It also supports C++17 using -std=c++17, so 
that can be tested, like for std::optional and such. It might good to get it 
compile with clang, too, as the issue seemed to hang on some rather esoteric 
use of templates, but the original from https://clang.llvm.org works fine on 
MacOS, so that it would be better than the inhouse version. Just some inputs 
from a bystander point of view.