Update to zig v0.15

- Added manifest.scm

build.zig

@@ -24,12 +24,17 @@ pub fn build(b: *std.Build) !void {
     const simdjson_evex512: ?*std.Build.Step.WriteFile = if (target.result.cpu.arch == .x86_64) try fix_evex512_simdjson(b, simdjson_dep) else null;
     const simdjson_source_file_root = if (simdjson_evex512) |evex512| evex512.getDirectory() else simdjson_dep.path("singleheader");
 
-    const simdjson_lib = b.addStaticLibrary(.{
-        .name = "simdjson",
+    const simdjson_mod = b.addModule("simdjson", .{
         .target = target,
         .optimize = optimize,
         .link_libc = true,
     });
+
+    const simdjson_lib = b.addLibrary(.{
+        .name = "simdjson",
+        .root_module = simdjson_mod,
+        .linkage = .static,
+    });
     simdjson_lib.linkLibCpp();
     simdjson_lib.addCSourceFiles(.{
         .root = simdjson_source_file_root,
@@ -43,18 +48,13 @@ pub fn build(b: *std.Build) !void {
     if (simdjson_evex512) |evex512| simdjson_lib.step.dependOn(&evex512.step);
     b.installArtifact(simdjson_lib);
 
-    const fastgltf_lib: *std.Build.Step.Compile = switch (preferred_link_mode) {
-        inline else => |x| switch (x) {
-            .static => std.Build.addStaticLibrary,
-            .dynamic => std.Build.addSharedLibrary,
-        }(b, .{
-            .name = "fastgltf",
-            // .version = version,
-            .target = target,
-            .optimize = optimize,
-            .link_libc = true,
-        }),
-    };
+    const fastgltf_mod = b.addModule("fastgltf", .{
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true,
+    });
+
+    const fastgltf_lib = b.addLibrary(.{ .name = "fastgltf", .linkage = preferred_link_mode, .root_module = fastgltf_mod });
     fastgltf_lib.linkLibCpp();
     fastgltf_lib.linkLibrary(simdjson_lib);
     fastgltf_lib.addIncludePath(fastgltf_dep.path(b.pathJoin(&.{"include"})));
@@ -77,11 +77,12 @@ pub fn build(b: *std.Build) !void {
     });
     b.installArtifact(fastgltf_lib);
 
-    const example = b.addExecutable(.{
-        .name = "fastgltf-example",
+    const example_mod = b.addModule("fastgltf-example", .{
         .target = target,
         .optimize = optimize,
     });
+
+    const example = b.addExecutable(.{ .name = "fastgltf-example", .root_module = example_mod });
     example.linkLibCpp();
     example.addIncludePath(.{ .cwd_relative = b.pathJoin(&.{ b.install_path, "include" }) });
     example.linkLibrary(fastgltf_lib);