Index: boost/test/utils/runtime/config.hpp
===================================================================
--- boost/test/utils/runtime/config.hpp	(revision 53058)
+++ boost/test/utils/runtime/config.hpp	(working copy)
@@ -44,6 +44,10 @@
 #  endif
 #endif
 
+#ifdef __SUNPRO_CC
+extern int putenv(char*);
+#endif
+
 namespace boost {
 
 namespace BOOST_RT_PARAM_NAMESPACE {
Index: boost/test/utils/named_params.hpp
===================================================================
--- boost/test/utils/named_params.hpp	(revision 53058)
+++ boost/test/utils/named_params.hpp	(working copy)
@@ -66,7 +66,7 @@
 
 struct nil {
     template<typename T>
-#if defined(__GNUC__) || defined(__HP_aCC) || defined(__EDG__)
+#if defined(__GNUC__) || defined(__HP_aCC) || defined(__EDG__) || defined(__SUNPRO_CC)
     operator T() const
 #else
     operator T const&() const