1const std = @import("std");
 2const builtin = @import("builtin");
 3
 4pub fn build(b: *std.Build) void {
 5    const test_step = b.step("test", "Test it");
 6    b.default_step = test_step;
 7
 8    const optimize: std.builtin.OptimizeMode = .Debug;
 9
10    const main = b.addExecutable(.{
11        .name = "main",
12        .root_module = b.createModule(.{
13            .root_source_file = b.path("main.zig"),
14            .target = b.graph.host,
15            .optimize = optimize,
16        }),
17    });
18
19    const run = b.addRunArtifact(main);
20    run.clearEnvironment();
21    run.setEnvironmentVariable("FOO", "123");
22    run.setEnvironmentVariable("EQUALS", "ABC=123");
23    run.setEnvironmentVariable("NO_VALUE", "");
24    run.setEnvironmentVariable("КИРиллИЦА", "non-ascii አማርኛ \u{10FFFF}");
25    if (b.graph.host.result.os.tag == .windows) {
26        run.setEnvironmentVariable("=Hidden", "hi");
27        // \xed\xa0\x80 is a WTF-8 encoded unpaired surrogate code point
28        run.setEnvironmentVariable("INVALID_UTF16_\xed\xa0\x80", "\xed\xa0\x80");
29    }
30    run.disable_zig_progress = true;
31
32    test_step.dependOn(&run.step);
33}