Index: blktrace-1.0.1/btreplay/Makefile
===================================================================
--- blktrace-1.0.1.orig/btreplay/Makefile
+++ blktrace-1.0.1/btreplay/Makefile
@@ -13,7 +13,7 @@ XCFLAGS	= -D_GNU_SOURCE -D_LARGEFILE_SOU
 override CFLAGS += $(INCS) $(XCFLAGS) $(OCFLAGS)
 
 PROGS	= btrecord btreplay
-LIBS	= -laio -lrt
+LIBS	= -laio -lrt -lpthread
 
 all: depend $(PROGS)