Update to NSPR 4.9.5 Beta 2, part 2: actual changes.

mozilla/nsprpub/pr/include/private/primpl.h

Index: mozilla/nsprpub/pr/include/private/primpl.h
===================================================================
--- mozilla/nsprpub/pr/include/private/primpl.h	(revision 179237)
+++ mozilla/nsprpub/pr/include/private/primpl.h	(working copy)
@@ -977,6 +977,9 @@
 extern void _PR_MD_SET_PRIORITY(_MDThread *md, PRThreadPriority newPri);
 #define    _PR_MD_SET_PRIORITY _MD_SET_PRIORITY
 
+extern void _PR_MD_SET_CURRENT_THREAD_NAME(const char *name);
+#define    _PR_MD_SET_CURRENT_THREAD_NAME _MD_SET_CURRENT_THREAD_NAME
+
 NSPR_API(void) _PR_MD_SUSPENDALL(void);
 #define    _PR_MD_SUSPENDALL _MD_SUSPENDALL
 
@@ -1533,6 +1536,7 @@
     PRIntn  errorStringLength;      /* textLength from last call to PR_SetErrorText() */
     PRInt32 errorStringSize;        /* malloc()'d size of buffer | zero */
     char *errorString;              /* current error string | NULL */
+    char *name;                     /* thread's name */
 
 #if defined(_PR_PTHREADS)
     pthread_t id;                   /* pthread identifier for the thread */
@@ -1822,7 +1826,6 @@
         && !defined(_PR_PTHREADS) && !defined(_PR_GLOBAL_THREADS_ONLY) \
         && !defined(PURIFY) \
         && !defined(DARWIN) \
-        && !defined(NEXTSTEP) \
         && !defined(QNX) \
         && !(defined (UNIXWARE) && defined (USE_SVR4_THREADS))
 #define _PR_OVERRIDE_MALLOC