add build file

build.zig

@@ -0,0 +1,12 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const exe = b.addExecutable(.{
+        .name = "sadfasdf",
+        .root_source_file = b.path("main.zig"),
+        .target = b.standardTargetOptions(.{}),
+        .optimize = b.standardOptimizeOption(.{}),
+    });
+    b.installArtifact(exe);
+    exe.linkLibC();
+}