[qpid-cpp] add back doxygen BuildRequire

[Nuno Santos]

commit bd9563c17109103779d0c8cd71343d7f56e54dfd
Author: Nuno Santos <nsantos at redhat.com>
Date:   Fri Feb 17 10:37:12 2012 -0500

    add back doxygen BuildRequire

 qpid-cpp.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/qpid-cpp.spec b/qpid-cpp.spec
index 15d7419..ffa99e2 100644
--- a/qpid-cpp.spec
+++ b/qpid-cpp.spec
@@ -136,6 +136,7 @@ ExclusiveArch:  i386 i686 x86_64
 
 BuildRequires: boost-devel
 BuildRequires: libtool
+BuildRequires: doxygen
 BuildRequires: pkgconfig
 BuildRequires: ruby
 BuildRequires: ruby-devel