From 4ad81437b15fc6856f9848a1d3e795b1cf78030f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 10 Dec 2009 10:13:55 +0200
Subject: Get rid of warning in generated code if option class is empty

---
 cli/source.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'cli/source.cxx')

diff --git a/cli/source.cxx b/cli/source.cxx
index 1c0b890..61cc1c0 100644
--- a/cli/source.cxx
+++ b/cli/source.cxx
@@ -350,6 +350,7 @@ namespace
     traverse (type& c)
     {
       string name (escape (c.name ()));
+      bool ho (has<semantics::option> (c));
 
       os << "// " << name << endl
          << "//" << endl
@@ -447,7 +448,7 @@ namespace
       if (usage)
       {
         os << "void " << name << "::" << endl
-           << "print_usage (::std::ostream& os)"
+           << "print_usage (::std::ostream&" << (ho ? " os" : "") << ")"
            << "{";
 
         // Calculate option length.
-- 
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