newbie problem of php with snmp

Hello, I always get debug.log messages like this : -----begin------- /usr/local//lib/libsnmp.so: undefined reference to `EVP_DigestInit' /usr/local//lib/libsnmp.so: undefined reference to `EVP_DigestFinal' /usr/local//lib/libsnmp.so: undefined reference to `EVP_md5' /usr/local//lib/libsnmp.so: undefined reference to `HMAC' /usr/local//lib/libsnmp.so: undefined reference to `EVP_sha1' /usr/local//lib/libsnmp.so: undefined reference to `des_cbc_encrypt' /usr/local//lib/libsnmp.so: undefined reference to `des_key_sched' /usr/local//lib/libsnmp.so: undefined reference to `EVP_DigestUpdate' /usr/local//lib/libsnmp.so: undefined reference to `RAND_bytes' /usr/local//lib/libsnmp.so: undefined reference to `des_ncbc_encrypt' ------end----------- when I compiled php-4.0.6 with ucd-snmp. ./configure --prefix=/usr/local/ --with-snmp How to solve that problem ? regards, -dikshie-