diff --git a/ap/build/uClibc/libc/stdio/clearerr.c b/ap/build/uClibc/libc/stdio/clearerr.c
new file mode 100644
index 0000000..a96ecaa
--- /dev/null
+++ b/ap/build/uClibc/libc/stdio/clearerr.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+#undef clearerr
+#ifdef __DO_UNLOCKED
+
+#undef clearerr_unlocked
+void clearerr_unlocked(register FILE *stream)
+{
+	__STDIO_STREAM_VALIDATE(stream);
+
+	__CLEARERR_UNLOCKED(stream);
+}
+
+#ifndef __UCLIBC_HAS_THREADS__
+strong_alias(clearerr_unlocked,clearerr)
+#endif
+
+#elif defined __UCLIBC_HAS_THREADS__
+
+void clearerr(register FILE *stream)
+{
+	__STDIO_AUTO_THREADLOCK_VAR;
+
+	__STDIO_AUTO_THREADLOCK(stream);
+
+	__STDIO_STREAM_VALIDATE(stream);
+
+	__CLEARERR_UNLOCKED(stream);
+
+	__STDIO_AUTO_THREADUNLOCK(stream);
+}
+
+#endif