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cas/21/21f0a03106dbe697337cd25c70eb0edbaa2bdb6d595b45f83285cdd35bac84de

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+			   READLINE PATCH REPORT
+			   =====================
+
+Readline-Release: 8.3
+Patch-ID: readline83-001
+
+Bug-Reported-by:	Dmitri A. Sergatskov <dasergatskov@gmail.com>
+Bug-Reference-ID:	<CAO+XyQ+ipUzFiXvRrDbTstfm1heZrerjvZGVaC60y=txMgyP+g@mail.gmail.com>
+Bug-Reference-URL:	
+
+Bug-Description:
+
+If an application uses readline's event hook, it is called while waiting for
+input. There is a bug in the function that waits for available input that
+causes it not to read that input under certain circumstances, resulting in
+a loop where the event hook continues to be called, but there is no input
+to stop it.
+
+Patch (apply with `patch -p0'):
+
+*** ../readline-8.3/input.c	Fri May  2 09:29:05 2025
+--- input.c	Tue Jul  8 15:37:13 2025
+***************
+*** 262,266 ****
+    tty = fileno (rl_instream);
+  
+!   /* Move this up here to give it first shot, but it can't set chars_avail */
+    /* XXX - need rl_chars_available_hook? */
+    if (rl_input_available_hook)
+--- 262,267 ----
+    tty = fileno (rl_instream);
+  
+!   /* Move this up here to give it first shot, but it can't set chars_avail,
+!      so we assume a single character is available. */
+    /* XXX - need rl_chars_available_hook? */
+    if (rl_input_available_hook)
+***************
+*** 269,272 ****
+--- 270,275 ----
+        if (result == 0)
+          result = -1;
++       else
++         chars_avail = 1;
+      }
+  
+***************
+*** 286,289 ****
+--- 289,293 ----
+        if (result <= 0)
+  	return 0;	/* Nothing to read. */
++       result = -1;	/* there is something, so check how many chars below */
+      }
+  #endif
+*** ../readline-8.3/patchlevel	2013-11-15 08:11:11.000000000 -0500
+--- patchlevel	2014-03-21 08:28:40.000000000 -0400
+***************
+*** 1,3 ****
+  # Do not edit -- exists only for use by patch
+  
+! 0
+--- 1,3 ----
+  # Do not edit -- exists only for use by patch
+  
+! 1