Zig build --help doesn't print help message

[81hvac1k02]

Zig Version

0.15.1

Steps to Reproduce and Observed Behavior

I installed zig on Windows 11 with winget install zig.zig. Then ran zig build --help in a empty directory.
Output: info: initialize build.zig template file with 'zig init' info: see 'zig --help' for more options error: no build.zig file found, in the current directory or any parent directories

Part 2:
I also tried cloning a existing project git clone https://github.com/allyourcodebase/cpython then run ´`zig build --help`` in it. It started compiling the project (and crashed),

zig build --help 
C:\Users\USER\AppData\Local\zig\p\zlib-1.3.1-ZZQ7lVgMAACwO4nUUd8GLhsuQ5JQq_VAhlEiENJTUv6h\build.zig:5:18: error: no field or member function named 'addStaticLibrary' in 'Build'
    const lib = b.addStaticLibrary(.{
                ~^~~~~~~~~~~~~~~~~
C:\Users\USER\AppData\Local\Microsoft\WinGet\Packages\zig.zig_Microsoft.Winget.Source_8wekyb3d8bbwe\zig-x86_64-windows-0.15.1\lib\std\Build.zig:1:1: note: struct declared here
const std = @import("std.zig");
^~~~~
C:\Users\USER\AppData\Local\zig\p\zlib-1.3.1-ZZQ7lVgMAACwO4nUUd8GLhsuQ5JQq_VAhlEiENJTUv6h\build.zig:5:18: note: method invocation only supports up to one level of implicit pointer dereferencing
C:\Users\USER\AppData\Local\zig\p\zlib-1.3.1-ZZQ7lVgMAACwO4nUUd8GLhsuQ5JQq_VAhlEiENJTUv6h\build.zig:5:18: note: use '.*' to dereference pointer
referenced by:
    runBuild__anon_82912: C:\Users\USER\AppData\Local\Microsoft\WinGet\Packages\zig.zig_Microsoft.Winget.Source_8wekyb3d8bbwe\zig-x86_64-windows-0.15.1\lib\std\Build.zig:2214:33
    dependencyInner__anon_78948: C:\Users\USER\AppData\Local\Microsoft\WinGet\Packages\zig.zig_Microsoft.Winget.Source_8wekyb3d8bbwe\zig-x86_64-windows-0.15.1\lib\std\Build.zig:2195:29
    8 reference(s) hidden; use '-freference-trace=10' to see all references
build.zig:1238:22: error: no field named 'autoconf' in union 'Build.Step.ConfigHeader.Style'
        .style = .{ .autoconf = upstream.path("pyconfig.h.in") },
                     ^~~~~~~~
C:\Users\USER\AppData\Local\Microsoft\WinGet\Packages\zig.zig_Microsoft.Winget.Source_8wekyb3d8bbwe\zig-x86_64-windows-0.15.1\lib\std\Build\Step\ConfigHeader.zig:7:19: note: union declared here
pub const Style = union(enum) {
                  ^~~~~ ``` 

### Expected Behavior

I expected to see the help menu. 

To just print a help menu shouldn't require me to create a empty project first. All it should do is print the help and exit. 
And i don't get why it starts compiling code instead of printing the help message. 

``zig --help``, ``zig cc --help`` and ``zig c++ --help`` all prints their respective help messages as expected without compiling anything.

[IOKG04]

zig build --help gives a help message specific to the current directory's build.zig. For example, if you add the standardOptimizeOption, it'll show that you can do -Doptimize=[...] to enable specific optimizations.
To do so, it needs to compile the build.zig to see what options are available.

If you want just the help message for zig, zig --help or zig help give you that.
If you want to build without making a project/without a build.zig, you should use zig build-exe/zig build-obj/zig run and their appropriate --help options.

Also the clones project doesn't work because its build.zig is made for an older version of zig, where Build.addStaticLibrary still existed (which it doesn't now).

[squeek502]

In the future, please direct questions like this to one of the community spaces first.