diff --git a/ap/build/uClibc/libc/stdio/ftrylockfile.c b/ap/build/uClibc/libc/stdio/ftrylockfile.c
new file mode 100644
index 0000000..0d2e156
--- /dev/null
+++ b/ap/build/uClibc/libc/stdio/ftrylockfile.c
@@ -0,0 +1,19 @@
+/* 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"
+
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning CONSIDER: What should this return when not threading?
+#endif
+
+int ftrylockfile(FILE *stream)
+{
+	__STDIO_STREAM_VALIDATE(stream);
+
+	return __STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(stream);
+}