nobu	2011-05-03 04:27:59 +0900 (Tue, 03 May 2011)

  New Revision: 31412

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=31412

  Log:
    * thread.c (rb_thread_select): preserve errno if no error
      occurred.

  Modified files:
    trunk/ChangeLog
    trunk/thread.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 31411)
+++ ChangeLog	(revision 31412)
@@ -1,3 +1,8 @@
+Tue May  3 04:27:53 2011  Nobuyoshi Nakada  <nobu@r...>
+
+	* thread.c (rb_thread_select): preserve errno if no error
+	  occurred.
+
 Tue May  3 03:57:04 2011  Nobuyoshi Nakada  <nobu@r...>
 
 	* include/ruby/intern.h (rb_w32_fdcopy): add prototype.  fixes
Index: thread.c
===================================================================
--- thread.c	(revision 31411)
+++ thread.c	(revision 31412)
@@ -2672,7 +2672,7 @@
 	return 0;
     }
     else {
-	int lerrno;
+	int lerrno = errno;
 	int result;
 
 	BLOCKING_REGION({

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