2012-11-14 Yao Qi <yao@codesourcery.com>
* gdb.threads/manythreads.c [DEBUG]: Include "stdio.h".
(thread_function) [DEBUG]: Call 'printf'.
* gdb.threads/manythreads.exp: Pass '-DDEBUG' to compilation
command line if 'DEBUG=1' is passed to test.
Remove a pattern to match inferior's output.