diff --git a/doxygen.spec b/doxygen.spec
index 5e4368d..6af0f9e 100644
--- a/doxygen.spec
+++ b/doxygen.spec
@@ -8,7 +8,7 @@
 
 Name:          doxygen
 Version:       1.8.11
-Release:       1mamba
+Release:       2mamba
 Summary:       A documentation system for C, C++, Java, IDL, Objective-C, PHP, C# and D
 Group:         Applications/Development
 Vendor:        openmamba
@@ -34,6 +34,7 @@ BuildRequires: bison
 BuildRequires: ghostscript
 BuildRequires: tetex-latex
 BuildRequires: tetex-dvips
+BuildRequires: clang >= 3.8.0
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -152,6 +153,9 @@ find examples -type f | xargs chmod -x
 %doc LANGUAGE.HOWTO examples
 
 %changelog
+* Mon Jun 13 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 1.8.11-2mamba
+- rebuilt with clang 3.8.0
+
 * Tue Apr 19 2016 Automatic Build System <autodist@mambasoft.it> 1.8.11-1mamba
 - automatic version update by autodist