update zig: fix never mutated vars, use new build system API

build.zig

@@ -6,9 +6,10 @@ pub fn build(b: *Build) !void {
     const optimize = b.standardOptimizeOption(.{});
     const target = b.standardTargetOptions(.{});
 
-    _ = b.addModule("mach-glfw", .{
-        .source_file = .{ .path = "src/main.zig" },
+    const module = b.addModule("mach-glfw", .{
+        .root_source_file = .{ .path = "src/main.zig" },
     });
+    module.addIncludePath(b.dependency("glfw", .{}).path("include"));
 
     const lib = b.addStaticLibrary(.{
         .name = "mach-glfw",
@@ -34,10 +35,13 @@ pub fn build(b: *Build) !void {
     test_step.dependOn(&b.addRunArtifact(main_tests).step);
 }
 
-pub fn link(b: *std.Build, step: *std.build.CompileStep) void {
+pub fn link(b: *std.Build, step: *std.Build.Step.Compile) void {
+    const target_triple: []const u8 = step.rootModuleTarget().zigTriple(b.allocator) catch @panic("OOM");
+    const cpu_opts: []const u8 = step.root_module.resolved_target.?.query.serializeCpuAlloc(b.allocator) catch @panic("OOM");
     const glfw_dep = b.dependency("glfw", .{
-        .target = step.target,
-        .optimize = step.optimize,
+        .target = target_triple,
+        .cpu = cpu_opts,
+        .optimize = step.root_module.optimize.?,
     });
     @import("glfw").link(glfw_dep.builder, step);
     step.linkLibrary(glfw_dep.artifact("glfw"));

build.zig.zon

@@ -12,8 +12,8 @@
     },
     .dependencies = .{
         .glfw = .{
-            .url = "https://pkg.machengine.org/glfw/49d153ebfc4f45eacc757ec2b063decbf5bb1779.tar.gz",
-            .hash = "122020d1ba277ff9e4b5ffff3e3bf4a3c98eeaec821e2a497d031070b05f7814b91f",
+            .url = "https://github.com/der-teufel-programming/glfw/archive/523dc59dc16ceabd7665b38aabf969e330decaf6.tar.gz",
+            .hash = "1220dbfb5484019e82fb064090afbe09c83b2d6ab80aac11ceb43a37af78a792cf52",
         },
     },
 }

src/Window.zig

@@ -2222,7 +2222,7 @@ test "hint int" {
     }
     defer glfw.terminate();
 
-    var focused: i32 = 1;
+    const focused: i32 = 1;
 
     hint(.focused, focused);
     defaultHints();
@@ -2363,8 +2363,8 @@ test "setIcon" {
     defer window.destroy();
 
     // Create an all-red icon image.
-    var width: u32 = 48;
-    var height: u32 = 48;
+    const width: u32 = 48;
+    const height: u32 = 48;
     const icon = try Image.init(allocator, width, height, width * height * 4);
     var x: u32 = 0;
     var y: u32 = 0;

src/main.zig

@@ -520,7 +520,7 @@ pub fn basicTest() !void {
     };
     defer window.destroy();
 
-    var start = std.time.milliTimestamp();
+    const start = std.time.milliTimestamp();
     while (std.time.milliTimestamp() < start + 1000 and !window.shouldClose()) {
         c.glfwPollEvents();
     }