Cannot compile with zig 0.15.1

[Logickin-Lambda]

During waiting for the zgui pull request that including the zig 0.15.1 update, I decided to spend some time for checking if there are other libraries can't build with the latest version.

Since I am currently use zgui + zgpu + zglfw + zaudio a lot for some learning projects and I expect to use them a lot in the near future, I decided to check if these libraries can be compiled properly. I have found that zgpu can't compile with zig 0.15.1, so I attempted to update the library; however, seems like I have came across a part of the code I am not familiar with:

usingnamespace if (emscripten) struct {
    // Missing symbols
    var wgpuDeviceTickWarnPrinted: bool = false;
    pub export fn wgpuDeviceTick() void {
        if (!wgpuDeviceTickWarnPrinted) {
            std.log.warn("wgpuDeviceTick(): this fn should be avoided! RequestAnimationFrame() is advised for smooth rendering in browser.", .{});
            wgpuDeviceTickWarnPrinted = true;
        }
        emscripten_sleep(1);
    }
} else struct {};

Because of the recent update to the usingnamespace, it throws this error:

src\zgpu.zig:1858:16: error: expected ',' after field
usingnamespace if (emscripten) struct {

However, I am not familiar with usingnamespace, neither I work on emscripten projects, so I am not sure what is the intended compilation results and behavior of the emscripten application. Anyone have some ideas with it?

[tonitch]

According to https://ziglang.org/download/0.15.1/release-notes.html#Use-Case-Conditional-Inclusion you could in most case expose the symbols simply. so basicly removing the first and last line should be enough. In the case of zgpu I don't really use it but looking quickly trough the code there doesn't seem to be any problems with this solution.

Basicly wgpuDeviceTickWarnPrinted and wgpudevicetick() were only available if emscripten was true. now they will always be available. which should not be a problem.

[Logickin-Lambda]

Thanks! I will try that later and make an update about whether it works or not.