From 677ece16fb9cf9f79c50ae673075f4d81c4e2744 Mon Sep 17 00:00:00 2001
From: Steven Watanabe <steven@providere-consulting.com>
Date: Thu, 21 Feb 2013 23:40:38 +0000
Subject: [PATCH] Doxygen rule requires at least one header file.

[SVN r83074]
---
 src/tools/doxygen.jam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tools/doxygen.jam b/src/tools/doxygen.jam
index a90e6e2df..6a56ccdc2 100644
--- a/src/tools/doxygen.jam
+++ b/src/tools/doxygen.jam
@@ -616,7 +616,7 @@ rule check-tools ( target )
 # User-level rule to generate HTML files or BoostBook XML from a set of headers
 # via Doxygen.
 #
-rule doxygen ( target : sources * : requirements * : default-build * :
+rule doxygen ( target : sources + : requirements * : default-build * :
     usage-requirements * )
 {
     freeze-config ;