--- Library_merged.mk.old	2013-07-23 12:40:26.000000000 +0200
+++ Library_merged.mk	2013-07-31 16:33:34.000000000 +0200
@@ -89,6 +89,7 @@ ifeq ($(OS),LINUX)
 $(eval $(call gb_Library_add_libs,merged,\
 	-lm \
 	-ldl \
+	-lrt \
 	-lpthread \
 ))
 endif