Index: boost/units/detail/utility.hpp
===================================================================
--- boost/units/detail/utility.hpp	(revision 77796)
+++ boost/units/detail/utility.hpp	(working copy)
@@ -15,10 +15,17 @@
 #include <typeinfo>
 #include <string>
 
+#include <boost/config.hpp>
+
 #if defined(__GLIBCXX__) || defined(__GLIBCPP__)
 #define BOOST_UNITS_USE_DEMANGLING
 #include <cxxabi.h>
-#endif // __GNUC__
+#elif defined(BOOST_CLANG) && defined(__has_include)
+#if __has_include(<cxxabi.h>)
+#define BOOST_UNITS_USE_DEMANGLING
+#include <cxxabi.h>
+#endif
+#endif
 
 #ifdef BOOST_UNITS_USE_DEMANGLING