Add basic errno support.

Needed for hash table support; probably useful in a lot of other
places as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/errno.h b/include/errno.h
new file mode 100644
index 0000000000..e24a33b386
--- /dev/null
+++ b/include/errno.h
@@ -0,0 +1,9 @@
+#ifndef _ERRNO_H
+
+#include <asm-generic/errno.h>
+
+extern int errno;
+
+#define __set_errno(val) do { errno = val; } while (0)
+
+#endif /* _ERRNO_H */