Index: src/driver/cfa.cc
===================================================================
--- src/driver/cfa.cc	(revision b3c36f41fb2d199b6fa2a40962f5aafe79f7ceeb)
+++ src/driver/cfa.cc	(revision daf1af80c44ed2335beaaef08ee5072ea619ef52)
@@ -271,4 +271,6 @@
 		args[nargs] = "-ldl";
 		nargs += 1;
+		args[nargs] = "-lrt";
+		nargs += 1;
 		args[nargs] = "-Xlinker";
 		nargs += 1;