PTHREAD_MUTEX_ROBUST  218 maint/gnulib/lib/pthread.in.h # undef PTHREAD_MUTEX_ROBUST
PTHREAD_MUTEX_ROBUST  220 maint/gnulib/lib/pthread.in.h # define PTHREAD_MUTEX_ROBUST 1
PTHREAD_MUTEX_ROBUST  239 maint/gnulib/lib/pthread.in.h #  define PTHREAD_MUTEX_ROBUST 1