GCC/GNAT 16 changelog published, release is close

Releases
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Dear all, the changelog for GCC/GNAT 16 is now live! You can see it here GCC 16 Release Series — Changes, New Features, and Fixes - GNU Project it is expected to be released quite soon (hopefully this month).

Additionally, some missing items in v14 and v15 where added, see GCC 14 Release Series — Changes, New Features, and Fixes - GNU Project and GCC 15 Release Series — Changes, New Features, and Fixes - GNU Project

I would like to thank @dkm for his work and help getting the changelog ready and submitted.

Best regards,
Fer

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Ada Monthly Meetup, 25th of April 2026
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I hope that MacOS and MacOS/arm64 more specifically are fully supported.

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Implicit with allows a stand-alone use clause in the context clause of a compilation unit to imply an implicit with of the same library unit where an equivalent with clause would be allowed.

er…what?

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Sorry but aarch64 darwin is still not supported in upstream gcc. You still need to use Iain’s branch (GitHub - iains/gcc-darwin-arm64: GCC master branch for Darwin with experimental support for Arm64. Currently GCC-16.0.1 [March 2026] · GitHub).

As for the “implicit with”, @Lucretia have you tried the linked doc? I guess it will make sense after you see the example.

Thanks @Irvise for helping with the changelog :+1:

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Thank you for the link to the GitHub branch/fork for the unsupported MacOS/Darwin/etc.

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It’s in GNAT’s experimental feature set, not the regular extension feature set or the base language.

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I still think that with X renames Y; is more useful.

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I should try building the superh arch with gcc16!!! I had troubles getting C++ to work on gcc15 and problems with Ada on gcc14. Maybe I can have one compiler for both languages now!

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I’ve played a bit with sh4 a while back, without any issue (see GitHub - dkm/ada-dreamcast-helloworld · GitHub ). I think the kalistiOS have included Ada in their toolchain now (but it’s better to check that, I’m not sure anymore).

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Constructor, Destructor, Implicit with, Structural Generic instantiation, access to slices.
So from right to left we have one good thing, one dubious, one useless, and two unthinkable violations of apocalyptic proportion. I think GNAT is thoroughly fὗϹԞd and it hurts me personally, due to my autistic desire for aesthetic perfection.

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There is nothing extraordinary in GNAT adding GNAT extensions.

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I looked into your project. There are some helpful configs that I’ll steal copy!

I wanted to ask you how you made your runtime, until I noticed that you copied it from Fabien-Chouteau/bare_runtime

I didn’t know that there was a bare runtime already… This could have saved me a week of tinkering around with the bb_runtime (and other runtimes)… So much debugging… So many failed attempts…

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But the learning! x)

Though I get it, it is quite frustrating… I knew of the project and I did not remember to tell you about it… :confused:

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Well, there is no point in crying now. I’ll look into it tomorrow after contemplating my life choices

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Yes, I did a simple copy… But beware that I never did anything more than a “Oh, look, it’s executing something, my job’s done :grimacing: “. I wouldn’t look at my project as a template, it’s probably not clean, nor a good example. It’s only a data point for “sh4 + Ada is possible”.

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And that is all I am asking for…

I’ll adapt it for my system as good as possible. It just has to compile for now.

(My current approach is working but I’m using a stub to define __gnat_last_chance_handler and a few more. )