1const std = @import("std");
 2
 3pub fn build(b: *std.Build) void {
 4    const test_step = b.step("test", "Test");
 5    b.default_step = test_step;
 6
 7    const lib = b.addExecutable(.{
 8        .name = "lib",
 9        .root_module = b.createModule(.{
10            .root_source_file = b.path("lib.zig"),
11            .optimize = .Debug,
12            .target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
13        }),
14    });
15    lib.entry = .disabled;
16    // Disabled to work around the Wasm linker crashing.
17    // Can be reproduced by commenting out the line below.
18    lib.bundle_ubsan_rt = false;
19    lib.use_lld = false;
20    lib.root_module.export_symbol_names = &.{ "foo", "bar" };
21    // Object being linked has neither functions nor globals named "foo" or "bar" and
22    // so these names correctly fail to be exported when creating an executable.
23    lib.expect_errors = .{ .exact = &.{
24        "error: manually specified export name 'foo' undefined",
25        "error: manually specified export name 'bar' undefined",
26    } };
27    _ = lib.getEmittedBin();
28
29    test_step.dependOn(&lib.step);
30}