PLAN9PORT_USING_PTHREADS   91 include/u.h    #		define PLAN9PORT_USING_PTHREADS 1
PLAN9PORT_USING_PTHREADS  101 include/u.h    #	define PLAN9PORT_USING_PTHREADS 1
PLAN9PORT_USING_PTHREADS  110 include/u.h    #		define PLAN9PORT_USING_PTHREADS 1
PLAN9PORT_USING_PTHREADS  120 include/u.h    #	define PLAN9PORT_USING_PTHREADS 1
PLAN9PORT_USING_PTHREADS  147 include/u.h    #	define PLAN9PORT_USING_PTHREADS 1