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--- a/gdb/doc/gdb.texinfo
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@@ -37933,6 +37933,19 @@ does not indicate support.
target supports it.
@end table
+@kindex maint set tui-resize-message
+@kindex maint show tui-resize-message
+@item maint set tui-resize-message
+@item maint show tui-resize-message
+Control whether @value{GDBN} displays a message each time the terminal
+is resized when in TUI mode. The default is @code{off}, which means
+that @value{GDBN} is silent during resizes. When @code{on},
+@value{GDBN} will display a message after a resize is completed; the
+message will include a number indicating how many times the terminal
+has been resized. This setting is intended for use by the test suite,
+where it would otherwise be difficult to determine when a resize and
+refresh has been completed.
+
@kindex maint set per-command
@kindex maint show per-command
@item maint set per-command