diff --git a/include/boost/config/compiler/clang.hpp b/include/boost/config/compiler/clang.hpp
index cdbba676..c37ad622 100644
--- a/include/boost/config/compiler/clang.hpp
+++ b/include/boost/config/compiler/clang.hpp
@@ -59,6 +59,13 @@
 // them is wrong.
 #define BOOST_NO_EXTERN_TEMPLATE
 
+// Clang version 2.0 (trunk 103769) does not yet properly 
+// value-initialize objects of a pointer-to-member type,
+// as was reported by Christopher Jefferson in May 2010, Bug 7139,
+// "ptr to member not zeroed", http://llvm.org/bugs/show_bug.cgi?id=7139
+// (Niels Dekker, LKEB, May 2010)
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+
 #ifndef BOOST_COMPILER
 #  define BOOST_COMPILER "Clang version " __clang_version__
 #endif