diff --git a/grp/lib.rs b/grp/lib.rs
new file mode 100644
index 0000000000000000000000000000000000000000..bbb377b29ee765eb4e48b92d722b8e0d4d5b1986
--- /dev/null
+++ b/grp/lib.rs
@@ -0,0 +1,44 @@
+/* automatically generated by rust-bindgen */
+#[repr(C)]
+#[derive(Debug, Copy)]
+pub struct group {
+    pub gr_name: *mut libc::c_char,
+    pub gr_passwd: *mut libc::c_char,
+    pub gr_gid: gid_t,
+    pub gr_mem: *mut *mut libc::c_char,
+}
+impl Clone for group {
+    fn clone(&self) -> Self { *self }
+}
+pub extern "C" fn getgrgid(arg1: gid_t) -> *mut group {
+    unimplemented!();
+}
+
+pub extern "C" fn getgrnam(arg1: *const libc::c_char) -> *mut group {
+    unimplemented!();
+}
+
+pub extern "C" fn getgrgid_r(arg1: gid_t, arg2: *mut group,
+                      arg3: *mut libc::c_char, arg4: usize,
+                      arg5: *mut *mut group) -> libc::c_int {
+    unimplemented!();
+}
+
+pub extern "C" fn getgrnam_r(arg1: *const libc::c_char, arg2: *mut group,
+                      arg3: *mut libc::c_char, arg4: usize,
+                      arg5: *mut *mut group) -> libc::c_int {
+    unimplemented!();
+}
+
+pub extern "C" fn getgrent() -> *mut group {
+    unimplemented!();
+}
+
+pub extern "C" fn endgrent() {
+    unimplemented!();
+}
+
+pub extern "C" fn setgrent() {
+    unimplemented!();
+}
+