Hi, I am trying to compile Squid 2.5.STABLE10 from scratch with the following options given to the configure-script ./configure --prefix=/root/squid-2.5 --enable-async-io --with-pthreads --enable-storeio=ufs,aufs,diskd,null --enable-linux-netfilter --enable-arp-acl --enable-removal-policies=lru,heap --enable-snmp --enable-delay-pools --enable-htcp --enable-poll --enable-cache-digests --enable-underscores --enable-referer-log --enable-useragent-log --enable-auth=basic,digest,ntlm --enable-carp --with-large-files i386-debian-linux but running into problems, getting undefined references like the following store_key_md5.o(.text+0x178):/root/squid-2.5.STABLE10/src/store_key_md5.c:10 3: undefined reference to `MD5Update' Any help appreciated Lars