From: Kirill A. Korinsky <kirill@korins.ky>
Subject: Re: lang/gcc: update to 15.x, need help with testing
To: ports@openbsd.org
Date: Tue, 05 Aug 2025 01:00:20 +0200

On Mon, 04 Aug 2025 10:03:18 +0200,
Kirill A. Korinsky <kirill@korins.ky> wrote:
> 
> ports@,
> 
> here is a work-in-progress update for lang/gcc to version 15.x, and I
> would like to ask for your help with testing.
> 
> I've also attached the intermediate versions which I've created during
> this process to update patches.
> 
> To make this update possible, I had to sacrifice the dlang. Starting
> with gcc-12, the build process requires a working GDC to bootstrap
> itself. Attempting to use the GDC from gcc-11 results in the error:
> 
> /build/pobj/gcc-12.4.0/gcc-12.4.0/libphobos/libdruntime/core/sys/openbsd/execinfo.d:156:1: error: declaration expected, not 'module'
>   156 | module core.sys.openbsd.execinfo;
>       | ^
> 
> Furthermore, my investigation revealed that dlang has been broken since
> at least version 7.5, as it fails to compile a simple program:
> 
> $ cat test.d
> import std.stdio;
> 
> void main()
> {
>     writeln("Hello, World!");
> }
> $ egdc test.d
> ld: error: undefined symbol: fiber_switchContext
> >>> referenced by fiber.d:1643 (/usr/obj/ports/gcc-11.2.0/gcc-11.2.0/libphobos/libdruntime/core/thread/fiber.d:1643)
> >>>               fiber.o:(_D4core6thread5fiber5Fiber9switchOutMFNbNiZv) in archive /usr/local/lib/gcc/x86_64-unknown-openbsd/11.2.0/../../../libgphobos.a
> >>> referenced by fiber.d:1610 (/usr/obj/ports/gcc-11.2.0/gcc-11.2.0/libphobos/libdruntime/core/thread/fiber.d:1610)
> >>>               fiber.o:(_D4core6thread5fiber5Fiber8switchInMFNbNiZv) in archive /usr/local/lib/gcc/x86_64-unknown-openbsd/11.2.0/../../../libgphobos.a
> collect2: error: ld returned 1 exit status
> $
> 
> Given this, removing dlang to unblock the GCC update seems acceptable.
> 
> I have successfully tested the new GCC on -current/amd64 by building the
> port and compiling some basic C++ programs.
> 
> I'm now requesting help to test this update on other archs. I'll handle
> arm64, but I don't have access to other archs. I would appreciate it if you
> could either test or provide me with access to do so myself.
> 
> If gcc-15 fails, please try the previous intermediate versions I've
> attached to see if any of them work.
> 
> Please note that I have not cleaned up the patches yet; my priority was
> to get the update functional. I plan to simplify them as a next step.
> 

Build on arm64 discovers a few missed pices. Here an updated gcc-15 port.

Keep in mind that an update for devel/gas might be needed
https://marc.info/?l=openbsd-ports&m=175433400115355&w=2

-- 
wbr, Kirill