Disable some deffinitions when testing the std::tr1 version.

[SVN r31608]

include/boost/regex/concepts.hpp

@@ -738,6 +738,7 @@ struct RegexConcept
    RegexConcept& operator=(const RegexConcept&);
 };
 
+#ifndef BOOST_REGEX_TEST_STD
 //
 // BoostRegexConcept:
 // Test every interface in the Boost implementation:
@@ -850,6 +851,8 @@ struct BoostRegexConcept
    BoostRegexConcept& operator=(const BoostRegexConcept&);
 };
 
+#endif // BOOST_REGEX_TEST_STD
+
 }
 
 #endif