Revision 385523

* locks/unix/proc_mutex.c (proc_mutex_no_tryacquire): Removed
function.
(proc_mutex_posix_tryacquire, proc_mutex_sysv_tryacquire,
proc_mutex_proc_pthread_tryacquire, proc_mutex_fcntl_tryacquire,
proc_mutex_flock_tryacquire): Added functions.

PR: 38758
Submitted by: Chris Darroch <chrisd pearsoncmg.com>