diff --git a/Cargo.toml b/Cargo.toml
index 158041f..101e14e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,7 +42,7 @@ default = ["compiler-builtins"]
 
 # Enable compilation of C code in compiler-rt, filling in some more optimized
 # implementations and also filling in unimplemented intrinsics
-# c = ["cc"]
+c = []
 
 # Flag this library as the unstable compiler-builtins lib
 compiler-builtins = []
diff --git a/build.rs b/build.rs
index e7c3d49..e1ce76a 100644
--- a/build.rs
+++ b/build.rs
@@ -91,7 +91,7 @@ fn compile_memcpy() {
         "memcpy.S",
     ];
 
-    let root = Path::new("./asm");
+    let root = Path::new("asm");
     for src in sources {
         println!("cargo:rerun-if-changed={}", src);
         cfg.file(root.join(src));