How to Install D on my new MacBook with M1 ARM computer

[Guillaume Piolat]

On Tuesday, 29 December 2020 at 19:04:33 UTC, Dave Chapman wrote:
> Greetings,
>
> Apologies If I have double posted.
>
> I received a MacBook pro M1 for Christmas and I would like to 
> install a D compiler on it. After looking at the downloads page 
> I don't see how to install D on a new MacBook. I did not see a 
> precompiled version to download with the possible exception of 
> ldc for macOS with 64 bit ARM support (thanks Guillaume!)
>
>

Hello,

1. Download ldc2-1.24.0-osx-x86_64.tar.xz (or later version)
    from this page: https://github.com/ldc-developers/ldc/releases

2. Unzip where you want, and put the bin/ subdirectory in your 
PATH envvar
    This will give you the ldc2 and dub command in your 
command-line, however they won't work straight away...

3. In Finder, right-click + click "Open" on the bin/dub and 
bin/ldc2 binaries since it is not notarized software, and macOS 
will ask for your approval first. Once you've done that, dub and 
ldc2 can be used from your Terminal normally.

4. Type 'ld' in Terminal, this will install the necessary latest 
XCode.app if it isn't already. That is a painful 10 gb download 
in general. You can also install Xcode from the App Store.

5. You can target normal x86_64 (Rosetta 2) with:
       ldc2 <params>
       dub <params>

6. If you want to target arm64, adapt the SDK path in 
etc/ldc2.conf with your actual Xcode macOS11.0 path, and then use 
-mtriple=arm64-apple-macos to cross-compile.
       ldc2 -mtriple=arm64-apple-macos <params>
       dub -a arm64-apple-macos <params>

Let me know if you want to _distribute_ consumer software for 
macOS, there are a lot more complications with signing and 
notarization.