diff --git a/include/errno.h b/include/errno.h
new file mode 100644
index 0000000..c282f69
--- /dev/null
+++ b/include/errno.h
@@ -0,0 +1,60 @@
+#ifndef _ERRNO_H
+#define _ERRNO_H
+
+/*
+ * ok, as I hadn't got any other source of information about
+ * possible error numbers, I was forced to use the same numbers
+ * as minix.
+ * Hopefully these are posix or something. I wouldn't know (and posix
+ * isn't telling me - they want $$$ for their f***ing standard).
+ *
+ * We don't use the _SIGN cludge of minix, so kernel returns must
+ * see to the sign by themselves.
+ *
+ * NOTE! Remember to change strerror() if you change this file!
+ */
+
+extern int errno;
+
+#define ERROR		99
+#define EPERM		 1
+#define ENOENT		 2
+#define ESRCH		 3
+#define EINTR		 4
+#define EIO		 5
+#define ENXIO		 6
+#define E2BIG		 7
+#define ENOEXEC		 8
+#define EBADF		 9
+#define ECHILD		10
+#define EAGAIN		11
+#define ENOMEM		12
+#define EACCES		13
+#define EFAULT		14
+#define ENOTBLK		15
+#define EBUSY		16
+#define EEXIST		17
+#define EXDEV		18
+#define ENODEV		19
+#define ENOTDIR		20
+#define EISDIR		21
+#define EINVAL		22
+#define ENFILE		23
+#define EMFILE		24
+#define ENOTTY		25
+#define ETXTBSY		26
+#define EFBIG		27
+#define ENOSPC		28
+#define ESPIPE		29
+#define EROFS		30
+#define EMLINK		31
+#define EPIPE		32
+#define EDOM		33
+#define ERANGE		34
+#define EDEADLK		35
+#define ENAMETOOLONG	36
+#define ENOLCK		37
+#define ENOSYS		38
+#define ENOTEMPTY	39
+
+#endif