From: Jan D <jan.h.d@swipnet.se>
Date: Sun, 26 Sep 2010 15:39:10 +0000 (+0200)
Subject: * xgselect.c (xg_select): Clear file descriptors not set from rfds and wfds.
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* xgselect.c (xg_select): Clear file descriptors not set from rfds and wfds.
---

diff --git a/src/ChangeLog b/src/ChangeLog
index ea57ffe8273..3adcd9d7a4d 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2010-09-26  Jan Djärv  <jan.h.d@swipnet.se>
+
+	* xgselect.c (xg_select): Clear file descriptors not set from
+	rfds and wfds.
+
 2010-09-21  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* syntax.c (back_comment): Detect the case where a 1-char comment
diff --git a/src/xgselect.c b/src/xgselect.c
index d93c1bdf405..a06713458a0 100644
--- a/src/xgselect.c
+++ b/src/xgselect.c
@@ -113,11 +113,17 @@ xg_select (max_fds, rfds, wfds, efds, timeout)
               if (rfds && FD_ISSET (i, rfds)) ++retval;
               else ++our_fds;
             }
+          else if (rfds)
+            FD_CLR (i, rfds);
+
           if (have_wfds && FD_ISSET (i, &all_wfds))
             {
               if (wfds && FD_ISSET (i, wfds)) ++retval;
               else ++our_fds;
             }
+          else if (wfds)
+            FD_CLR (i, wfds);
+
           if (efds && FD_ISSET (i, efds))
             ++retval;
         }