From 0a1c72f32cd709972d6e4e5591dfd05d91edc8e1 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 11 May 2012 09:49:05 +0200
Subject: Avoid unused variable warning for empty option classes

---
 cli/source.cxx | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'cli')

diff --git a/cli/source.cxx b/cli/source.cxx
index d49caf8..2b976d4 100644
--- a/cli/source.cxx
+++ b/cli/source.cxx
@@ -612,10 +612,6 @@ namespace
       {
         bool b (hb && !options.exclude_base ());
 
-        os << "void " << name << "::" << endl
-           << "print_usage (::std::ostream&" << (ho || b ? " os" : "") << ")"
-           << "{";
-
         // Calculate option length.
         //
         size_t len (0);
@@ -676,7 +672,7 @@ namespace
             }
           }
 
-          if (max != 0)
+          if (len != 0 && max != 0)
           {
             if (len > max)
             {
@@ -690,6 +686,12 @@ namespace
           }
         }
 
+        // If len is 0 then it means we have no options to print.
+        //
+        os << "void " << name << "::" << endl
+           << "print_usage (::std::ostream&" << (len != 0 || b ? " os)" : ")")
+           << "{";
+
         // Call our bases.
         //
         if (b)
-- 
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