httpz blocking mode build option, how to enable?

[rose yarrow]

https://github.com/karlseguin/http.zig?tab=readme-ov-file#blocking-mode
They have something like this in build.zig:

{
    const options = b.addOptions();
    options.addOption(bool, "httpz_blocking", false);
    httpz_module.addOptions("build", options);
}

How to enable this? I tried

const httpz = b.dependency("httpz", .{
    .target = target,
    .optimize = optimize,
    .httpz_blocking = true,
});

and also zig build run -Dhttpz_blocking=true
But httpz.blockingMode() keep returning false

[marsh haven]

b.addOptions() does not necessarily create a user-configurable option. In this case, it looks like it is hard coded to "false" in the build script

I think force_blocking is the option you are looking for.

https://github.com/karlseguin/http.zig/blob/master/build.zig#L37

(Nope, that is just for tests)

[rigid finch]

If you/they wished to reveal the option to 'zig build -h' you'd have to additionally use build.option()