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diff --git a/m4/lls/include/color.m4 b/m4/lls/include/color.m4
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+[option color]
+	short_opt = C
+	summary = activate color output
+	typestr = when
+	arg_info = required_arg
+	arg_type = string
+	values = {COLOR_YES = "yes", COLOR_NO = "no", COLOR_AUTO = "auto"}
+	default_val = auto
+[option log-color]
+	summary = select a color for one type of log message
+	typestr = color_spec
+	arg_info = required_arg
+	arg_type = string
+	flag multiple
+	[help]
+		The format of <color_spec> is [<fg> [<bg>]] [<attr>].
+
+		Valid colors for <fg> and <bg> are "normal", "black", "red", "green",
+		"yellow", "blue", "magenta", "cyan", and "white".
+
+		The <attr> value must be one of "bold", "dim", "ul", "blink",
+		"reverse".
+
+	Examples:
+
+		--log-color "debug:green"
+		--log-color "info:yellow bold"
+		--log-color "notice:white red bold"
+	[/help]