GHA/windows: switch a job to ARM64 on native runner

Switch a build-only MSYS2/mingw-w64 job to ARM64 using the ARM64 Windows
runner. This avoids most downsides of native ARM64 builds. Side-effect
is switching this job from GCC to clang. This adds speed, which offsets
the slower MSYS2 install step.

The new ARM64 runner hits a bunch of corner cases and inefficiencies:
- MSYS2/Cygwin misses native ARM64 support and this isn't expected to
  change. It means GH action installs x64 binaries on ARM64. vcpkg does
  the same. It runs, but not native, so slower. It affects runtests and
  possibly vcpkg build performance.
  https://github.com/msys2/MSYS2-packages/discussions/2889
  https://cygwin.com/pipermail/cygwin/2021-December/250156.html
- MSYS2 diffutils package missing for CLANGARM64.
- vcpkg boringssl build broken for ARM64.

Also:
- bump the vcpkg build time limit, as it seems the native x86_64 jobs
  also can't fit into 35 minutes.
- prepare MSVC jobs for the ARM64 runner.

Ref: https://github.com/github/roadmap/issues/1098#issuecomment-2806476117
Ref: https://github.blog/changelog/2025-04-14-windows-arm64-hosted-runners-now-available-in-public-preview/

Closes #17067

diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 54042f1f18fb79ef7bc17a52e38572cedb77b3bb..24a4c0731b2f033fb77b9b4924f289696d0ea44a 100644 (file)
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -183,25 +183,25 @@ jobs:
       matrix:
         include:
           # MSYS
-          - { build: 'autotools', sys: 'msys'   , env: 'x86_64'      , tflags: ''       , config: '--enable-debug --with-openssl --disable-threaded-resolver --disable-proxy', install: 'openssl-devel libssh2-devel', name: '!proxy' }
-          - { build: 'autotools', sys: 'msys'   , env: 'x86_64'      , tflags: 'skiprun', config: '--enable-debug --with-openssl --disable-threaded-resolver', install: 'openssl-devel libssh2-devel', name: 'default' }
-          - { build: 'cmake'    , sys: 'msys'   , env: 'x86_64'      , tflags: ''       , config: '-DENABLE_DEBUG=ON -DENABLE_THREADED_RESOLVER=OFF', install: 'openssl-devel libssh2-devel', name: 'default' }
-          - { build: 'autotools', sys: 'msys'   , env: 'x86_64'      , tflags: ''       , config: '--with-openssl', install: 'openssl-devel libssh2-devel', name: 'default R' }
+          - { build: 'autotools', sys: 'msys'      , env: 'x86_64'       , tflags: ''       , config: '--enable-debug --with-openssl --disable-threaded-resolver --disable-proxy', install: 'openssl-devel libssh2-devel', name: '!proxy' }
+          - { build: 'autotools', sys: 'msys'      , env: 'x86_64'       , tflags: 'skiprun', config: '--enable-debug --with-openssl --disable-threaded-resolver', install: 'openssl-devel libssh2-devel', name: 'default' }
+          - { build: 'cmake'    , sys: 'msys'      , env: 'x86_64'       , tflags: ''       , config: '-DENABLE_DEBUG=ON -DENABLE_THREADED_RESOLVER=OFF', install: 'openssl-devel libssh2-devel', name: 'default' }
+          - { build: 'autotools', sys: 'msys'      , env: 'x86_64'       , tflags: ''       , config: '--with-openssl', install: 'openssl-devel libssh2-devel', name: 'default R' }
           # MinGW
-          - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun', config: '--enable-debug --with-openssl --disable-threaded-resolver --disable-curldebug --enable-static=no --without-zlib', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-libssh2', name: 'default' }
-          - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: ''       , config: '--enable-debug --with-openssl --enable-windows-unicode --enable-ares --with-openssl-quic', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-nghttp3 mingw-w64-x86_64-libssh2', name: 'c-ares U' }
-          - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_ARES=ON', install: 'mingw-w64-x86_64-libssh2', type: 'Debug', name: 'schannel c-ares U' }
+          - { build: 'autotools', sys: 'mingw64'   , env: 'x86_64'       , tflags: 'skiprun', config: '--enable-debug --with-openssl --disable-threaded-resolver --disable-curldebug --enable-static=no --without-zlib', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-libssh2', name: 'default' }
+          - { build: 'autotools', sys: 'mingw64'   , env: 'x86_64'       , tflags: ''       , config: '--enable-debug --with-openssl --enable-windows-unicode --enable-ares --with-openssl-quic', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-nghttp3 mingw-w64-x86_64-libssh2', name: 'c-ares U' }
+          - { build: 'cmake'    , sys: 'mingw64'   , env: 'x86_64'       , tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_ARES=ON', install: 'mingw-w64-x86_64-libssh2', type: 'Debug', name: 'schannel c-ares U' }
           # WARNING: libssh uses hard-coded world-writable paths (/etc/..., ~/.ssh/) to
           #          read its configuration from, making it vulnerable to attacks on
           #          Windows. Do not use this component till there is a fix for these.
           # https://github.com/curl/curl-for-win/blob/3951808deb04df9489ee17430f236ed54436f81a/libssh.sh#L6-L8
-          - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_GNUTLS=ON   -DENABLE_UNICODE=OFF -DUSE_NGTCP2=ON -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON', install: 'mingw-w64-clang-x86_64-gnutls mingw-w64-clang-x86_64-nghttp3 mingw-w64-clang-x86_64-ngtcp2 mingw-w64-clang-x86_64-libssh', type: 'Debug', name: 'gnutls libssh' }
-          - { build: 'cmake'    , sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_CURLDEBUG=ON', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', name: 'schannel R TrackMemory' }
-          - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: 'skiprun', config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_OPENSSL=ON  -DENABLE_UNICODE=OFF', install: 'mingw-w64-clang-x86_64-openssl mingw-w64-clang-x86_64-libssh2', type: 'Release', name: 'openssl', chkprefill: '_chkprefill' }
-          - { build: 'cmake'    , sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', test: 'uwp', name: 'schannel' }
-          # { build: 'autotools', sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun', config: '--without-debug --with-schannel --enable-shared', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', test: 'uwp', name: 'schannel' }
-          - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun', config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DCMAKE_VERBOSE_MAKEFILE=ON', install: 'mingw-w64-x86_64-libssh2', type: 'Debug', cflags: '-DCURL_SCHANNEL_DEV_DEBUG', name: 'schannel dev debug', image: 'windows-2025' }
-          - { build: 'cmake'    , sys: 'mingw32', env: 'i686'        , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON', install: 'mingw-w64-i686-libssh2', type: 'Release', name: 'schannel R' }
+          - { build: 'cmake'    , sys: 'clang64'   , env: 'clang-x86_64' , tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_GNUTLS=ON   -DENABLE_UNICODE=OFF -DUSE_NGTCP2=ON -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON', install: 'mingw-w64-clang-x86_64-gnutls mingw-w64-clang-x86_64-nghttp3 mingw-w64-clang-x86_64-ngtcp2 mingw-w64-clang-x86_64-libssh', type: 'Debug', name: 'gnutls libssh' }
+          - { build: 'cmake'    , sys: 'clangarm64', env: 'clang-aarch64', tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_CURLDEBUG=ON', install: 'mingw-w64-clang-aarch64-libssh2', type: 'Release', name: 'schannel R TrackMemory', image: 'windows-11-arm' }
+          - { build: 'cmake'    , sys: 'clang64'   , env: 'clang-x86_64' , tflags: 'skiprun', config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_OPENSSL=ON  -DENABLE_UNICODE=OFF', install: 'mingw-w64-clang-x86_64-openssl mingw-w64-clang-x86_64-libssh2', type: 'Release', name: 'openssl', chkprefill: '_chkprefill' }
+          - { build: 'cmake'    , sys: 'ucrt64'    , env: 'ucrt-x86_64'  , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', test: 'uwp', name: 'schannel' }
+          # { build: 'autotools', sys: 'ucrt64'    , env: 'ucrt-x86_64'  , tflags: 'skiprun', config: '--without-debug --with-schannel --enable-shared', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', test: 'uwp', name: 'schannel' }
+          - { build: 'cmake'    , sys: 'mingw64'   , env: 'x86_64'       , tflags: 'skiprun', config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DCMAKE_VERBOSE_MAKEFILE=ON', install: 'mingw-w64-x86_64-libssh2', type: 'Debug', cflags: '-DCURL_SCHANNEL_DEV_DEBUG', name: 'schannel dev debug', image: 'windows-2025' }
+          - { build: 'cmake'    , sys: 'mingw32'   , env: 'i686'         , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON', install: 'mingw-w64-i686-libssh2', type: 'Release', name: 'schannel R' }
       fail-fast: false
     steps:
       - run: git config --global core.autocrlf input
@@ -230,7 +230,7 @@ jobs:
           install: >-
             mingw-w64-${{ matrix.env }}-cc
             mingw-w64-${{ matrix.env }}-${{ matrix.build }} ${{ matrix.build == 'autotools' && 'make' || '' }}
-            mingw-w64-${{ matrix.env }}-diffutils
+            ${{ matrix.sys != 'clangarm64' && format('mingw-w64-{0}-diffutils', matrix.env) || '' }}
             mingw-w64-${{ matrix.env }}-libpsl
             mingw-w64-${{ matrix.env }}-c-ares
             ${{ matrix.install }}
@@ -842,9 +842,8 @@ jobs:
       - uses: msys2/setup-msys2@d44ca8e88d8b43d56cf5670f91747359d5537f97 # v2
         with:
           msystem: ucrt64
-          release: false
-          update: false
-          cache: false
+          release: ${{ contains(matrix.image, 'arm') }}
+          cache: ${{ contains(matrix.image, 'arm') }}
           path-type: inherit
 
       - name: 'vcpkg cache setup'
@@ -861,7 +860,7 @@ jobs:
           vcpkg version
 
       - name: 'vcpkg build'
-        timeout-minutes: 35
+        timeout-minutes: 45
         run: vcpkg x-set-installed ${{ matrix.install }} '--triplet=${{ matrix.arch }}-${{ matrix.plat }}'
 
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4