问Redis编译错误

EN

cc -o redis-server -std=c99 -pedantic -O2 -Wall -W   -lm -pthread   -g -rdynamic -ggdb     adlist.o ae.o anet.o dict.o redis.o sds.o zmalloc.o lzf_c.o lzf_d.o pqsort.o zipmap.o sha1.o ziplist.o release.o networking.o util.o object.o db.o replication.o rdb.o t_string.o t_list.o t_set.o t_zset.o t_hash.o config.o aof.o vm.o pubsub.o multi.o debug.o sort.o intset.o syncio.o
vm.o: In function `computeObjectSwappability':
/home/prakhar/redis-2.2.5/src/vm.c:446: undefined reference to `log'
collect2: ld returned 1 exit status
make[1]: *** [redis-server] Error 1
make[1]: Leaving directory `/home/prakhar/redis-2.2.5/src'
make: *** [all] Error 2