(wait_reading_process_output): Add comment and URL.

src/ChangeLog

@@ -2,6 +2,7 @@
 
 	* process.c (wait_reading_process_output): Fix asynchrounous
 	GnuTLS socket handling on some versions of the GnuTLS library.
+	(wait_reading_process_output): Add comment and URL.
 
 2011-11-21  Jan Djärv  <jan.h.d@swipnet.se>
 

src/process.c

@@ -4625,7 +4625,11 @@ wait_reading_process_output (int time_limit, int microsecs, int read_kbd,
 	      if (! wait_proc)
 		{
 		  /* We're not waiting on a specific process, so loop
-		     through all the channels and check for data. */
+		     through all the channels and check for data.
+		     This is a workaround needed for some versions of
+		     the gnutls library -- 2.12.14 has been confirmed
+		     to need it.  See
+		     http://comments.gmane.org/gmane.emacs.devel/145074 */
 		  struct Lisp_Process *proc;
 		  for (channel = 0; channel < MAXDESC; ++channel)
 		    {