Auto merge of #2445 - JohnTitor:fix-msrv-on-win, r=JohnTitor

Fix MSRV issue on Windows

Fixes #2436

Author: bors

.github/workflows/bors.yml

@@ -226,6 +226,30 @@ jobs:
       - name: Execute build.sh
         run: LIBC_CI=1 TOOLCHAIN=${{ matrix.toolchain }} sh ./ci/build.sh
 
+  build_channels_windows:
+    name: Build Channels Windows
+    runs-on: windows-2019
+    env:
+      OS: windows
+    strategy:
+      fail-fast: true
+      matrix:
+        toolchain: [
+          1.19.0,
+          1.24.0,
+          1.25.0,
+          1.30.0,
+          stable,
+        ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Self-update rustup
+        run: rustup self update
+        shell: bash
+      - name: Execute build.sh
+        run: LIBC_CI=1 TOOLCHAIN=${{ matrix.toolchain }} WIN_TARGET=${{ matrix.target }} sh ./ci/build.sh
+        shell: bash
+
   semver_linux:
     name: Semver Linux
     runs-on: ubuntu-20.04
@@ -283,6 +307,7 @@ jobs:
       docker_switch,
       build_channels_linux,
       build_channels_macos,
+      build_channels_windows,
       docs,
     ]
 
@@ -303,6 +328,7 @@ jobs:
       docker_switch,
       build_channels_linux,
       build_channels_macos,
+      build_channels_windows,
       docs,
     ]
 

ci/build.sh

@@ -161,6 +161,13 @@ RUST_NIGHTLY_APPLE_TARGETS="\
 aarch64-apple-darwin \
 "
 
+# Must start with `x86_64-pc-windows-msvc` first.
+RUST_NIGHTLY_WINDOWS_TARGETS="\
+x86_64-pc-windows-msvc \
+x86_64-pc-windows-gnu \
+i686-pc-windows-msvc \
+"
+
 # The targets are listed here alphabetically
 TARGETS=""
 case "${OS}" in
@@ -189,14 +196,23 @@ case "${OS}" in
             TARGETS="${TARGETS} ${RUST_NIGHTLY_APPLE_TARGETS}"
         fi
 
+        ;;
+    windows*)
+        TARGETS=${RUST_NIGHTLY_WINDOWS_TARGETS}
+
         ;;
     *)
         ;;
 esac
 
 for TARGET in $TARGETS; do
     if echo "$TARGET"|grep -q "$FILTER"; then
-        test_target build "$TARGET"
+        if [ "${OS}" = "windows" ]; then
+            TARGET="$TARGET" sh ./ci/install-rust.sh
+            test_target build "$TARGET"
+        else
+            test_target build "$TARGET"
+        fi
     fi
 done
 
@@ -265,15 +281,15 @@ if [ "${RUST}" = "nightly" ] && [ "${OS}" = "linux" ]; then
     done
 fi
 
-RUST_OSX_NO_CORE_TARGETS="\
+RUST_APPLE_NO_CORE_TARGETS="\
 armv7-apple-ios \
 armv7s-apple-ios \
 i686-apple-darwin \
 i386-apple-ios \
 "
 
 if [ "${RUST}" = "nightly" ] && [ "${OS}" = "macos" ]; then
-    for TARGET in $RUST_OSX_NO_CORE_TARGETS; do
+    for TARGET in $RUST_APPLE_NO_CORE_TARGETS; do
         if echo "$TARGET" | grep -q "$FILTER"; then
             test_target build "$TARGET" 1
         fi

src/windows/msvc/x86_64.rs src/windows/msvc/x86_64/align.rssrc/windows/msvc/x86_64.rs renamed to src/windows/msvc/x86_64/align.rs

@@ -63,7 +63,7 @@ s! {
         pub MxCsr_Mask: ::c_ulong,
         pub FloatRegisters: [M128A; 8],
         pub XmmRegisters: [M128A; 16],
-        _Reserved4: [::c_uchar; 96],
+        _Reserved4: [[::c_uchar; 16]; 6],
     }
 
     #[repr(align(16))]

src/windows/msvc/x86_64/mod.rs

@@ -0,0 +1,6 @@
+cfg_if! {
+    if #[cfg(libc_align)] {
+        mod align;
+        pub use self::align::*;
+    }
+}