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--- a/Makefile.am
+++ b/Makefile.am
@@ -20,11 +20,11 @@
 bin_PROGRAMS = upexplorer upmpdcli
 
 upexplorer_SOURCES = upexplo/upexplo.cxx
-upexplorer_LDADD = libupnpp.la -lixml -lupnp -lexpat -lpthread 
+upexplorer_LDADD = libupnpp.la -lixml -lupnp -lexpat -lpthread -lrt
 #upexplorer_LDFLAGS = 
 
 upmpdcli_SOURCES = upmpd/upmpd.cxx upmpd/mpdcli.cxx upmpd/upmpdutils.cxx
-upmpdcli_LDADD = libupnpp.la -lixml -lupnp -lexpat -lmpdclient -lpthread 
+upmpdcli_LDADD = libupnpp.la -lixml -lupnp -lexpat -lmpdclient -lpthread -lrt
 #upmpdcli_LDFLAGS = 
 
 dist_pkgdata_DATA = upmpd/description.xml upmpd/AVTransport.xml \