Index: driver/cfa.cc
===================================================================
--- driver/cfa.cc	(revision c680a4ba5e93338ec036f1c5135c217e61c20ac1)
+++ driver/cfa.cc	(revision 7c38d53def9ac073fba9cd083330388efc1bea48)
@@ -10,6 +10,6 @@
 // Created On       : Tue Aug 20 13:44:49 2002
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Fri Jan 31 16:48:03 2020
-// Update Count     : 421
+// Last Modified On : Mon May 18 13:26:26 2020
+// Update Count     : 424
 //
 
@@ -301,8 +301,4 @@
 	} // for
 
-	#ifdef __x86_64__
-	args[nargs++] = "-mcx16";							// allow double-wide CAA
-	#endif // __x86_64__
-
 	#ifdef __DEBUG_H__
 	cerr << "args:";
@@ -419,4 +415,8 @@
 		args[nargs++] = "-lcfa";
 		args[nargs++] = "-Wl,--pop-state";
+		#ifdef __x86_64__
+		args[nargs++] = "-mcx16";						// allow double-wide CAS
+		args[nargs++] = "-latomic";
+		#endif // __x86_64__
 		args[nargs++] = "-pthread";
 		args[nargs++] = "-ldl";