zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libpthread/linuxthreads/sysdeps/arm/sysdep-cancel.h b/ap/build/uClibc/libpthread/linuxthreads/sysdeps/arm/sysdep-cancel.h
new file mode 100644
index 0000000..ba6a1e0
--- /dev/null
+++ b/ap/build/uClibc/libpthread/linuxthreads/sysdeps/arm/sysdep-cancel.h
@@ -0,0 +1,8 @@
+#include <sysdep.h>
+
+/* No multi-thread handling enabled.  */
+#define SINGLE_THREAD_P (1)
+#define RTLD_SINGLE_THREAD_P (1)
+#define LIBC_CANCEL_ASYNC()	0 /* Just a dummy value.  */
+#define LIBC_CANCEL_RESET(val)	((void)(val)) /* Nothing, but evaluate it.  */
+#define LIBC_CANCEL_HANDLED()	/* Nothing.  */