--- stl_utility.h.orig	2011-12-18 14:20:56.000000000 -0500
+++ stl_utility.h	2011-12-18 14:29:07.000000000 -0500
@@ -33,10 +33,13 @@
 /// Template Library, STL. This file is an effort to provide
 /// extensions to STL functionality.
 ///
+/*
 
 #include "concept_check.h"
 #include "DataWeight.h"
+*/
 #include "Exception.h"
+/*
 
 #include <boost/concept_check.hpp>
 #include <boost/iterator/transform_iterator.hpp>
@@ -45,6 +48,7 @@
 #include <boost/type_traits/is_const.hpp>
 #include <boost/type_traits/remove_reference.hpp>
 
+*/
 #include <algorithm>
 #include <cmath>
 #include <exception>
@@ -79,6 +83,7 @@
 namespace yat {
 namespace utility {
 
+#ifdef HAVE_BOOST
 	/**
 		 Functor class taking absolute value
 	*/
@@ -345,6 +350,7 @@
 		inline T operator()(T x) const
 		{ return std::exp(x); }
 	};
+#endif
 
 	/**
 		 \brief Identity functor that returns its argument
@@ -359,6 +365,7 @@
 	};
 
 
+#ifdef HAVE_BOOST
 	/**
 		 Same functionality as map::operator[] but the function does not
 		 modify the map and the function throws if key does not exist in
@@ -777,5 +784,6 @@
 		return iter->second;
 	}
 
+#endif
 }}} // of namespace utility, yat, and theplu
 #endif