Slightly optimize x_check_errors as well

* src/xterm.c (x_check_errors): Don't sync if no requests were
made since the error trap was installed.

diff --git a/src/xterm.c b/src/xterm.c
index fb7d18a53fbfe8076ed3a17127e4e21dd7a4b30d..7235a1e9599555b6b0eb51957ae761421d66ead0 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -21414,8 +21414,10 @@ x_check_errors (Display *dpy, const char *format)
 
   /* There is no point in making this extra sync if all requests
      are known to have been fully processed.  */
-  if (LastKnownRequestProcessed (dpy)
-      != NextRequest (dpy) - 1)
+  if ((LastKnownRequestProcessed (dpy)
+       != NextRequest (dpy) - 1)
+      && (NextRequest (dpy)
+         > x_error_message->first_request))
     XSync (dpy, False);
 
   if (x_error_message->string[0])