build: update for Zig 0.15.1

Author: mitchellh

build.zig

@@ -11,7 +11,9 @@ pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
-    _ = b.addModule("xev", .{ .root_source_file = b.path("src/main.zig") });
+    _ = b.addModule("xev", .{
+        .root_source_file = b.path("src/main.zig"),
+    });
 
     const emit_man = b.option(
         bool,
@@ -170,8 +172,9 @@ fn buildBenchmarks(
     b: *std.Build,
     target: std.Build.ResolvedTarget,
 ) ![]const *Step.Compile {
-    var steps = std.ArrayList(*Step.Compile).init(b.allocator);
-    defer steps.deinit();
+    const alloc = b.allocator;
+    var steps: std.ArrayList(*Step.Compile) = .empty;
+    defer steps.deinit(alloc);
 
     var dir = try std.fs.cwd().openDir(try b.build_root.join(
         b.allocator,
@@ -208,10 +211,10 @@ fn buildBenchmarks(
         exe.root_module.addImport("xev", b.modules.get("xev").?);
 
         // Store the mapping
-        try steps.append(exe);
+        try steps.append(alloc, exe);
     }
 
-    return try steps.toOwnedSlice();
+    return try steps.toOwnedSlice(alloc);
 }
 
 fn buildExamples(
@@ -220,8 +223,9 @@ fn buildExamples(
     optimize: std.builtin.OptimizeMode,
     c_lib_: ?*Step.Compile,
 ) ![]const *Step.Compile {
-    var steps = std.ArrayList(*Step.Compile).init(b.allocator);
-    defer steps.deinit();
+    const alloc = b.allocator;
+    var steps: std.ArrayList(*Step.Compile) = .empty;
+    defer steps.deinit(alloc);
 
     var dir = try std.fs.cwd().openDir(try b.build_root.join(
         b.allocator,
@@ -287,15 +291,16 @@ fn buildExamples(
         };
 
         // Store the mapping
-        try steps.append(exe);
+        try steps.append(alloc, exe);
     }
 
-    return try steps.toOwnedSlice();
+    return try steps.toOwnedSlice(alloc);
 }
 
 fn manPages(b: *std.Build) ![]const *Step {
-    var steps = std.ArrayList(*Step).init(b.allocator);
-    defer steps.deinit();
+    const alloc = b.allocator;
+    var steps: std.ArrayList(*Step) = .empty;
+    defer steps.deinit(alloc);
 
     var dir = try std.fs.cwd().openDir(try b.build_root.join(
         b.allocator,
@@ -315,11 +320,11 @@ fn manPages(b: *std.Build) ![]const *Step {
             b.fmt("docs/{s}", .{entry.name}),
         ) });
 
-        try steps.append(&b.addInstallFile(
+        try steps.append(alloc, &b.addInstallFile(
             cmd.captureStdOut(),
             b.fmt("share/man/man{s}/{s}", .{ section, base }),
         ).step);
     }
 
-    return try steps.toOwnedSlice();
+    return try steps.toOwnedSlice(alloc);
 }

flake.lock

@@ -2,8 +2,7 @@
   description = "libxev is a high performance, cross-platform event loop.";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/release-24.05";
-    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixos-25.05/nixexprs.tar.xz";
     flake-utils.url = "github:numtide/flake-utils";
     zig.url = "github:mitchellh/zig-overlay";
 
@@ -24,11 +23,7 @@
       # Other overlays
       (final: prev: rec {
         zigpkgs = inputs.zig.packages.${prev.system};
-        zig = inputs.zig.packages.${prev.system}."0.14.1";
-
-        # Latest versions
-        wasmtime = inputs.nixpkgs-unstable.legacyPackages.${prev.system}.wasmtime;
-        wasmer = inputs.nixpkgs-unstable.legacyPackages.${prev.system}.wasmer;
+        zig = inputs.zig.packages.${prev.system}."0.15.1";
 
         # Our package
         libxev = prev.callPackage ./nix/package.nix {};