diff --git a/ctru-sys/bindgen-ctru-sys/src/main.rs b/ctru-sys/bindgen-ctru-sys/src/main.rs
index 1a0f7eb..222eb66 100644
--- a/ctru-sys/bindgen-ctru-sys/src/main.rs
+++ b/ctru-sys/bindgen-ctru-sys/src/main.rs
@@ -16,13 +16,15 @@ fn main() {
     let devkitarm = std::env::var("DEVKITARM").expect("DEVKITARM not set in environment");
 
     let include_path = PathBuf::from_iter([devkitpro.as_str(), "libctru", "include"]);
-    let header = include_path.join("3ds.h");
+    let ctru_header = include_path.join("3ds.h");
 
     let sysroot = PathBuf::from(devkitarm).join("arm-none-eabi");
     let system_include = sysroot.join("include");
+    let errno_header = system_include.join("errno.h");
 
     let bindings = Builder::default()
-        .header(header.to_str().unwrap())
+        .header(ctru_header.to_str().unwrap())
+        .header(errno_header.to_str().unwrap())
         .rust_target(RustTarget::Nightly)
         .use_core()
         .trust_clang_mangling(false)
diff --git a/ctru-sys/src/bindings.rs b/ctru-sys/src/bindings.rs
index fc480d8..3b092c3 100644
--- a/ctru-sys/src/bindings.rs
+++ b/ctru-sys/src/bindings.rs
@@ -1231,6 +1231,93 @@ pub const MIISELECTOR_USERMII_SLOTS: u32 = 100;
 pub const MIISELECTOR_GUESTMII_NAME_LEN: u32 = 12;
 pub const ARCHIVE_DIRITER_MAGIC: u32 = 1751347809;
 pub const LINK3DS_COMM_PORT: u32 = 17491;
+pub const __error_t_defined: u32 = 1;
+pub const EPERM: u32 = 1;
+pub const ENOENT: u32 = 2;
+pub const ESRCH: u32 = 3;
+pub const EINTR: u32 = 4;
+pub const EIO: u32 = 5;
+pub const ENXIO: u32 = 6;
+pub const E2BIG: u32 = 7;
+pub const ENOEXEC: u32 = 8;
+pub const EBADF: u32 = 9;
+pub const ECHILD: u32 = 10;
+pub const EAGAIN: u32 = 11;
+pub const ENOMEM: u32 = 12;
+pub const EACCES: u32 = 13;
+pub const EFAULT: u32 = 14;
+pub const EBUSY: u32 = 16;
+pub const EEXIST: u32 = 17;
+pub const EXDEV: u32 = 18;
+pub const ENODEV: u32 = 19;
+pub const ENOTDIR: u32 = 20;
+pub const EISDIR: u32 = 21;
+pub const EINVAL: u32 = 22;
+pub const ENFILE: u32 = 23;
+pub const EMFILE: u32 = 24;
+pub const ENOTTY: u32 = 25;
+pub const ETXTBSY: u32 = 26;
+pub const EFBIG: u32 = 27;
+pub const ENOSPC: u32 = 28;
+pub const ESPIPE: u32 = 29;
+pub const EROFS: u32 = 30;
+pub const EMLINK: u32 = 31;
+pub const EPIPE: u32 = 32;
+pub const EDOM: u32 = 33;
+pub const ERANGE: u32 = 34;
+pub const ENOMSG: u32 = 35;
+pub const EIDRM: u32 = 36;
+pub const EDEADLK: u32 = 45;
+pub const ENOLCK: u32 = 46;
+pub const ENOSTR: u32 = 60;
+pub const ENODATA: u32 = 61;
+pub const ETIME: u32 = 62;
+pub const ENOSR: u32 = 63;
+pub const ENOLINK: u32 = 67;
+pub const EPROTO: u32 = 71;
+pub const EMULTIHOP: u32 = 74;
+pub const EBADMSG: u32 = 77;
+pub const EFTYPE: u32 = 79;
+pub const ENOSYS: u32 = 88;
+pub const ENOTEMPTY: u32 = 90;
+pub const ENAMETOOLONG: u32 = 91;
+pub const ELOOP: u32 = 92;
+pub const EOPNOTSUPP: u32 = 95;
+pub const EPFNOSUPPORT: u32 = 96;
+pub const ECONNRESET: u32 = 104;
+pub const ENOBUFS: u32 = 105;
+pub const EAFNOSUPPORT: u32 = 106;
+pub const EPROTOTYPE: u32 = 107;
+pub const ENOTSOCK: u32 = 108;
+pub const ENOPROTOOPT: u32 = 109;
+pub const ECONNREFUSED: u32 = 111;
+pub const EADDRINUSE: u32 = 112;
+pub const ECONNABORTED: u32 = 113;
+pub const ENETUNREACH: u32 = 114;
+pub const ENETDOWN: u32 = 115;
+pub const ETIMEDOUT: u32 = 116;
+pub const EHOSTDOWN: u32 = 117;
+pub const EHOSTUNREACH: u32 = 118;
+pub const EINPROGRESS: u32 = 119;
+pub const EALREADY: u32 = 120;
+pub const EDESTADDRREQ: u32 = 121;
+pub const EMSGSIZE: u32 = 122;
+pub const EPROTONOSUPPORT: u32 = 123;
+pub const EADDRNOTAVAIL: u32 = 125;
+pub const ENETRESET: u32 = 126;
+pub const EISCONN: u32 = 127;
+pub const ENOTCONN: u32 = 128;
+pub const ETOOMANYREFS: u32 = 129;
+pub const EDQUOT: u32 = 132;
+pub const ESTALE: u32 = 133;
+pub const ENOTSUP: u32 = 134;
+pub const EILSEQ: u32 = 138;
+pub const EOVERFLOW: u32 = 139;
+pub const ECANCELED: u32 = 140;
+pub const ENOTRECOVERABLE: u32 = 141;
+pub const EOWNERDEAD: u32 = 142;
+pub const EWOULDBLOCK: u32 = 11;
+pub const __ELASTERROR: u32 = 2000;
 pub type __int8_t = ::libc::c_schar;
 pub type __uint8_t = ::libc::c_uchar;
 pub type __int16_t = ::libc::c_short;
@@ -18357,3 +18444,13 @@ extern "C" {
     #[doc = " Connects to the 3dslink host, setting up an output stream.\n # Arguments\n\n* `redirStdout` (direction in) - Whether to redirect stdout to nxlink output.\n * `redirStderr` (direction in) - Whether to redirect stderr to nxlink output.\n # Returns\n\nSocket fd on success, negative number on failure.\n > **Note:** The socket should be closed with close() during application cleanup."]
     pub fn link3dsConnectToHost(redirStdout: bool, redirStderr: bool) -> ::libc::c_int;
 }
+pub type error_t = ::libc::c_int;
+extern "C" {
+    pub fn __errno() -> *mut ::libc::c_int;
+}
+extern "C" {
+    pub static _sys_errlist: [*const ::libc::c_char; 0usize];
+}
+extern "C" {
+    pub static mut _sys_nerr: ::libc::c_int;
+}
diff --git a/ctru-sys/src/lib.rs b/ctru-sys/src/lib.rs
index 3ec110d..474e1d2 100644
--- a/ctru-sys/src/lib.rs
+++ b/ctru-sys/src/lib.rs
@@ -16,7 +16,3 @@ pub use result::*;
 pub unsafe fn errno() -> s32 {
     *__errno()
 }
-
-extern "C" {
-    fn __errno() -> *mut libc::c_int;
-}