diff --git a/Cargo.toml b/Cargo.toml
index 663d9b109..97b8f35b9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,8 @@
 [package]
 authors = ["Jorge Aparicio <japaricious@gmail.com>"]
+build = "build.rs"
 name = "rustc_builtins"
 version = "0.1.0"
+
+[dependencies]
+rlibc = { path = "rlibc" }
diff --git a/build.rs b/build.rs
new file mode 100644
index 000000000..27d51570d
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,18 @@
+use std::path::Path;
+use std::env;
+
+fn main() {
+    let target_dir = Path::new(env!("OUT_DIR")).parent().unwrap().parent().unwrap().parent().unwrap().parent().unwrap();
+    let mut deps_dir = target_dir.to_owned();
+    let host = env::var_os("HOST").unwrap();
+    let target = env::var_os("TARGET").unwrap();
+
+    if target != host {
+        deps_dir.push(target);
+    }
+    deps_dir.push(env::var_os("PROFILE").unwrap());
+    deps_dir.push("deps");
+
+    println!("cargo:rustc-link-search=native={}", deps_dir.display());
+    println!("cargo:rustc-link-lib=static=rlibc");
+}
diff --git a/rlibc/Cargo.toml b/rlibc/Cargo.toml
new file mode 100644
index 000000000..abe7f9fdc
--- /dev/null
+++ b/rlibc/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+authors = ["Jorge Aparicio <japaricious@gmail.com>"]
+name = "rlibc"
+version = "0.1.0"
+
+[lib]
+crate-type = ["staticlib"]
diff --git a/rlibc/src/lib.rs b/rlibc/src/lib.rs
new file mode 100644
index 000000000..98f97097f
--- /dev/null
+++ b/rlibc/src/lib.rs
@@ -0,0 +1,53 @@
+#![feature(lang_items)]
+#![feature(linkage)]
+#![no_builtins]
+#![no_std]
+
+#[linkage = "weak"]
+#[no_mangle]
+pub unsafe extern "C" fn memcpy(dest: *mut u8, src: *const u8, n: usize) -> *mut u8 {
+    let mut i = 0;
+    while i < n {
+        *dest.offset(i as isize) = *src.offset(i as isize);
+        i += 1;
+    }
+    dest
+}
+
+#[linkage = "weak"]
+#[no_mangle]
+pub unsafe extern "C" fn memmove(dest: *mut u8, src: *const u8, n: usize) -> *mut u8 {
+    if src < dest as *const u8 {
+        // copy from end
+        let mut i = n;
+        while i != 0 {
+            i -= 1;
+            *dest.offset(i as isize) = *src.offset(i as isize);
+        }
+    } else {
+        // copy from beginning
+        let mut i = 0;
+        while i < n {
+            *dest.offset(i as isize) = *src.offset(i as isize);
+            i += 1;
+        }
+    }
+    dest
+}
+
+#[linkage = "weak"]
+#[no_mangle]
+pub unsafe extern "C" fn memset(s: *mut u8, c: i32, n: usize) -> *mut u8 {
+    let mut i = 0;
+    while i < n {
+        *s.offset(i as isize) = c as u8;
+        i += 1;
+    }
+    s
+}
+
+#[lang = "panic_fmt"]
+fn panic_fmt() {}
+
+#[lang = "eh_personality"]
+fn eh_personality() {}