started setting up support for C code in the kernel

kernel/build.rs

@@ -1,9 +1,14 @@
 use std::process::Command;
 use std::{env, path::Path};
+use cc;
 
 fn main() {
     // Tell cargo to rerun if these files change
     println!("cargo:rerun-if-changed=src");
     println!("cargo:rerun-if-changed=linker.ld");
     println!("cargo:rerun-if-changed=../config/limine.conf");
-}
+
+    cc::Build::new()
+        .file("src/main.c")
+        .compile("lib");
+}