diff -up ./snapper/Makefile.am.orig ./snapper/Makefile.am
--- ./snapper/Makefile.am.orig	2018-10-18 17:21:19.987472709 +0300
+++ ./snapper/Makefile.am	2018-10-18 17:21:27.155538975 +0300
@@ -62,7 +62,7 @@ libsnapper_la_SOURCES +=				\
 endif
 
 libsnapper_la_LDFLAGS = -version-info @LIBVERSION_INFO@
-libsnapper_la_LIBADD = -lboost_thread -lboost_system -lxml2 -lacl -lz -lm
+libsnapper_la_LIBADD = -lboost_thread -lboost_system -lxml2 -lacl -lz -lm -lpthread
 if ENABLE_ROLLBACK
 libsnapper_la_LIBADD += -lmount
 endif