From a97781a277c8f68425e546a9ee17de9066903876 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matheus=20C=2E=20Fran=C3=A7a?=
 <matheus-catarino@hotmail.com>
Date: Fri, 19 Apr 2024 10:18:49 -0300
Subject: [PATCH] msvc target

---
 .github/workflows/zig-build.yml | 36 +++++++++++++++++++++++----------
 build.zig                       |  5 ++++-
 2 files changed, 29 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/zig-build.yml b/.github/workflows/zig-build.yml
index bec26cbc7..2d84bb46d 100644
--- a/.github/workflows/zig-build.yml
+++ b/.github/workflows/zig-build.yml
@@ -14,8 +14,9 @@ jobs:
 
       matrix:
         # TODO: move from nightly to zig 0.12 final when released.
-        zig_version: [ "0.12.0-dev.3666+a2b834e8c" ]
-        os: [ macos-latest, ubuntu-latest ]
+        zig_version: [ "master" ]
+        # os: [ macos-latest, ubuntu-latest, windows-latest ]
+        os: [ windows-latest ]
         gc_assertions: [ true ]
         large_config: [ false ]
         enable_threads: [ false, true ]
@@ -79,17 +80,30 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: "Install zig on Linux/x86_64"
-      if: runner.os == 'Linux'
-      run: |
-        mkdir zig && curl https://ziglang.org/builds/zig-linux-x86_64-${{matrix.zig_version}}.tar.xz | tar Jx --directory=zig --strip-components=1
-    - name: "Install zig on MacOS/x86_64"
-      if: runner.os == 'macOS'
-      run: |
-        mkdir zig && curl https://ziglang.org/builds/zig-macos-x86_64-${{matrix.zig_version}}.tar.xz | tar Jx --directory=zig --strip-components=1
+    - uses: korandoru/setup-zig@v1
+      with:
+        zig-version: ${{ matrix.zig_version }}
     - name: Build
       run: >
-        zig/zig build
+        zig build
+        -DBUILD_SHARED_LIBS=${{ matrix.shared_libs }}
+        -Ddisable_handle_fork=${{ matrix.disable_handle_fork }}
+        -Denable_gc_assertions=${{ matrix.gc_assertions }}
+        -Denable_gc_debug=${{ matrix.enable_gc_debug }}
+        -Denable_large_config=${{ matrix.large_config }}
+        -Denable_munmap=${{ matrix.enable_munmap }}
+        -Denable_parallel_mark=${{ matrix.parallel_mark }}
+        -Denable_redirect_malloc=${{ matrix.redirect_malloc }}
+        -Denable_rwlock=${{ matrix.enable_rwlock }}
+        -Denable_thread_local_alloc=${{ matrix.thread_local_alloc }}
+        -Denable_threads=${{ matrix.enable_threads }}
+        -Denable_werror
+        test
+    
+    - name: "MSVC target"
+      if: runner.os == 'Windows'
+      run: >
+        zig build -Dtarget=native-native-msvc
         -DBUILD_SHARED_LIBS=${{ matrix.shared_libs }}
         -Ddisable_handle_fork=${{ matrix.disable_handle_fork }}
         -Denable_gc_assertions=${{ matrix.gc_assertions }}
diff --git a/build.zig b/build.zig
index 4295ec061..6fc40e63a 100644
--- a/build.zig
+++ b/build.zig
@@ -395,7 +395,10 @@ pub fn build(b: *std.Build) void {
     // -U GC_MISSING_EXECINFO_H
     // -U GC_NO_SIGSETJMP
     flags.append("-D HAVE_SYS_TYPES_H") catch unreachable;
-    flags.append("-D HAVE_UNISTD_H") catch unreachable;
+    if (lib.rootModuleTarget().abi != .msvc)
+        flags.append("-D HAVE_UNISTD_H") catch unreachable
+    else
+        flags.append("-D _CRT_SECURE_NO_WARNINGS") catch unreachable;
 
     const have_getcontext = !t.abi.isMusl();
     if (!have_getcontext) {