Add binary gem for platform aarch64-mingw-ucrt

[larskanis]

What problem is this PR intended to solve?

I would like to add a precompiled binary gem for Windows on ARM64 platform.

This PR requires the latest rake-compiler-dock from main branch, since current version 1.9.1 doesn't provide aarch64-mingw-ucrt target platform.

Have you included adequate test coverage?

Yes, a dedicated CI ob.

Does this change affect the behavior of either the C or the Java implementations?

Only C.

[larskanis]

Commit 2b4d25c also fixes native build on Windows on ARM64.

Fixes #3469
Fixes #3470

[flavorjones]

I've rebased this onto current main.

[YOU54F]

👋🏾

I've been testing this out, as I have been trying to get the pact_broker working on windows 11 arm, and I can confirm I can build this with the latest rake-compiler-dock

https://github.com/rake-compiler/rake-compiler-dock/releases/tag/v1.10.0

I've prebuilt the gems, and installing them manually, and then running bundle leaves me with a green ci run ( the rack app, uses sqlite and nokogiri native exts)

https://github.com/YOU54F/pact-broker-in-a-box/blob/01e1b94df385c61e9773e14e9ceb93738dc64c05/action.yml#L44-L73

If I try and install from this branch directly in windows 11 arm, I get the same error we see in CI

https://github.com/YOU54F/nokogiri/actions/runs/18859786182/job/53815924597

Using mini_portile version 2.8.9
---------- IMPORTANT NOTICE ----------
Building Nokogiri with a packaged version of libgumbo-1.0.0-nokogiri.
Configuration options: --enable-shared --disable-static
Copying gumbo-parser files into tmp/aarch64-w64-mingw32/ports/libgumbo/1.0.0-nokogiri/gumbo-parser...
Running 'compile' for libgumbo 1.0.0-nokogiri... OK
checking for whether -IC:/hostedtoolcache/windows/Ruby/3.4.7/arm64/lib/ruby/gems/3.4.0/gems/nokogiri-1.20.test.2025.1028.0017/ext/nokogiri/ports/aarch64-mingw-ucrt/libgumbo/1.0.0-nokogiri/include is accepted as CPPFLAGS... no
checking for gumbo_parse_with_options() in nokogiri_gumbo.h... no
-----
extconf.rb:309:in 'Object#ensure_func'
extconf.rb:1117:in '<main>'
gumbo_parse_with_options is missing. Please locate mkmf.log to investigate how it is failing

Looking forward to a precompiled gem :) thanks for your work @larskanis

[larskanis]

The failing extconf tests

checking for whether -IC:/hostedtoolcache/windows/Ruby/3.4.7/arm64/lib/ruby/gems/3.4.0/gems/nokogiri-1.20.test.2025.1028.0017/ext/nokogiri/ports/aarch64-mingw-ucrt/libgumbo/1.0.0-nokogiri/include is accepted as CPPFLAGS... no
checking for gumbo_parse_with_options() in nokogiri_gumbo.h... no

are due to the use of clang-21 in RubyInstaller-3.4.7 for ARM64. It raises a warning there, which lets the check fail:

 C:/hostedtoolcache/windows/Ruby/3.4.7/arm64/include/ruby-3.4.0/ruby/internal/core/rstring.h:398:24: warning: default initialization of an object of type 'struct RString' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe]

It is already fixed for ruby-3.4.8 per ruby/ruby@18e1766 , scheduled for Dec-2025.