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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: SDL Ada package fails to compile on Mac, gnat 13.1, missing "SDL2_ttf/SDL_ttf.h"
Date: Thu, 29 Jun 2023 22:22:25 +0100
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Kenneth Wolcott <kennethwolcott@gmail.com> writes:

> 2. I stopped using Alire because I wanted a native gnat compiler and
> Alire didn't provide one and now that I installed and am using Simon's
> (again, thank you) build, Alire refuses to "get" some interesting
> packages.  I'll respond later with some specific examples.  Perhaps I
> have Alire improperly installed or configured...

I wrote up something about this[1].

Alire will download and install external packages (e.g. SDL2) if it
knows how to use the host system's package manager. The "nightly"
builds[2] for macOS know how to install via Homebrew, provided that the
external manifest has been updated[3].

If someone wants to upgrade Alire to use MacPorts, I'm sure that would
be welcomed.

Adding aarch64 compilers to the mix makes things somewhat more
complicated.

Does MacPorts provide aarch64 (aka arm64) binary libraries? the object
code and libraries that are linked to produce an executable must be
consistent, all x86_64 or all aarch64.

[1]
https://forward-in-code.blogspot.com/2023/06/alire-on-macos-revisited.html
[2] https://github.com/alire-project/alire/releases
[3] https://github.com/alire-project/alire-index/pull/832