Improve support for building on windows

README.md

@@ -32,3 +32,10 @@ A simple tetris clone written in
 ```
 zig build play
 ```
+
+## Building on windows using vcpkg
+
+* Install vcpkg https://github.com/microsoft/vcpkg
+* Install dependencies using `x64-windows` triplet
+* Use the flags `-Dwindows -Dvcpkg` when building the project
+

build.zig

@@ -4,6 +4,7 @@ const builtin = @import("builtin");
 pub fn build(b: *Builder) void {
     const mode = b.standardReleaseOptions();
     const windows = b.option(bool, "windows", "create windows build") orelse false;
+    const vcpkg = b.option(bool, "vcpkg", "Add vcpkg paths to the build") orelse false;
 
     var exe = b.addExecutable("tetris", "src/main.zig");
     exe.addCSourceFile("stb_image-2.22/stb_image_impl.c", &[_][]const u8{"-std=c99"});
@@ -15,12 +16,19 @@ pub fn build(b: *Builder) void {
             .os_tag = .windows,
             .abi = .gnu,
         });
+
+        exe.linkSystemLibrary("glfw3dll");
+    } else {
+        exe.linkSystemLibrary("glfw");
+    }
+
+    if (vcpkg) {
+        exe.addVcpkgPaths(builtin.LinkMode.Dynamic) catch @panic("Cannot add vcpkg paths.");
     }
 
     exe.addIncludeDir("stb_image-2.22");
 
     exe.linkSystemLibrary("c");
-    exe.linkSystemLibrary("glfw");
     exe.linkSystemLibrary("epoxy");
     exe.install();