nobu	2014-05-10 13:32:10 +0900 (Sat, 10 May 2014)

  New Revision: 45898

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=45898

  Log:
    thread_pthread.c: variable for errno
    
    * thread_pthread.c (timer_thread_sleep): use a local variable for
      errno.

  Modified files:
    trunk/thread_pthread.c
Index: thread_pthread.c
===================================================================
--- thread_pthread.c	(revision 45897)
+++ thread_pthread.c	(revision 45898)
@@ -1389,13 +1389,14 @@ timer_thread_sleep(rb_global_vm_lock_t* https://github.com/ruby/ruby/blob/trunk/thread_pthread.c#L1389
 	consume_communication_pipe(timer_thread_pipe_low[0]);
     }
     else { /* result < 0 */
-	switch (errno) {
-	case EBADF:
-	case EINVAL:
-	case ENOMEM: /* from Linux man */
-	case EFAULT: /* from FreeBSD man */
-	    rb_async_bug_errno("thread_timer: select", errno);
-	default:
+	int e = errno;
+	switch (e) {
+	  case EBADF:
+	  case EINVAL:
+	  case ENOMEM: /* from Linux man */
+	  case EFAULT: /* from FreeBSD man */
+	    rb_async_bug_errno("thread_timer: select", e);
+	  default:
 	    /* ignore */;
 	}
     }

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