mach: Initial commit for gamemode

gamemode-zig/build.zig

@@ -0,0 +1,23 @@
+const std = @import("std");
+
+pub const pkg = std.build.Pkg{
+    .name = "gamemode",
+    .source = .{ .path = thisDir() ++ "/src/gamemode.zig" },
+};
+
+/// Link system library gamemode
+pub fn link(exe: *std.build.LibExeObjStep) void {
+    exe.linkSystemLibrary("gamemode");
+}
+
+/// TODO:
+/// Build and link gamemode
+pub fn buildAndLink(b: *std.build.Builder, exe: *std.build.LibExeObjStep) void {
+    const lib = b.addSharedLibrarySource("gamemode", std.build.FileSource{ .path = thisDir() ++ "/c/client_impl.c" }, .unversioned);
+    lib.linkLibC();
+    exe.linkLibrary(lib);
+}
+
+fn thisDir() []const u8 {
+    return std.fs.path.dirname(@src().file) orelse ".";
+}