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--- a/src/mk/Linux
+++ b/src/mk/Linux
@@ -5,5 +5,5 @@
 ALL_CXXFLAGS = $(CXXFLAGS) $(COMMONCXXFLAGS) $(LOCALCXXFLAGS) \
 	 -D_GNU_SOURCE 
 
-LIBSYS = -lpthread -ldl
+LIBSYS = -lpthread -ldl -lrt
 LIBSYSTHREADS = -lrt