diff --git a/0/linux/lib/errno.c b/0/linux/lib/errno.c
new file mode 100644
index 0000000..50aca2e
--- /dev/null
+++ b/0/linux/lib/errno.c
@@ -0,0 +1,7 @@
+/*
+ *  linux/lib/errno.c
+ *
+ *  (C) 1991  Linus Torvalds
+ */
+
+int errno;