diff --git a/ap/build/uClibc/libpthread/linuxthreads.old/debug.h b/ap/build/uClibc/libpthread/linuxthreads.old/debug.h
new file mode 100644
index 0000000..76779da
--- /dev/null
+++ b/ap/build/uClibc/libpthread/linuxthreads.old/debug.h
@@ -0,0 +1,40 @@
+/****************************************************************************
+**
+** NAME:
+** debug.h
+**
+** DESCRIPTION:
+** This header file defines the debug macros used in pthreads. To turn
+** debugging on, add -DDEBUG_PT to CFLAGS. It was added to the original
+** distribution of linuxthreads.
+**
+** This program is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Library General Public License
+** as published by the Free Software Foundation; either version 2
+** of the License, or (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU Library General Public License for more details.
+**
+****************************************************************************/
+
+#ifndef _PT_DEBUG_H
+#define _PT_DEBUG_H
+
+#include <features.h>
+
+#ifdef __DODEBUG_PT__
+# define DEBUG_PT
+#endif
+
+/* define the PDEBUG macro here */
+#undef PDEBUG
+#ifdef DEBUG_PT
+#  define PDEBUG(fmt, args...) __pthread_message("%s: " fmt, __FUNCTION__, ## args)
+#else
+#  define PDEBUG(fmt, args...) /* debug switched off */
+#endif
+
+#endif /* _PT_DEBUG_H */