my configure arguments:

ernie# cat work/php-4.0.4pl1/config.nice
#! /bin/sh
#
# Created by configure

"./configure" \
"--with-apxs=/usr/local/sbin/apxs" \
"--with-ssl=/usr" \
"--enable-versioning" \
"--with-system-regex" \
"--with-config-file-path=/usr/local/etc" \
"--disable-debug" \
"--enable-track-vars" \
"--without-gd" \
"--disable-pear" \
"--with-zlib" \
"--with-mysql=/usr/local" \
"--with-snmp=/usr/local" \
"--enable-ucd-snmp-hack" \
"--prefix=/usr/local" \
"i386--freebsd4.2" \
"$@"
ernie#

the error:

configure:43839: checking for gzgets in -lz
configure:43858: cc -o conftest -O -pipe
-DHARD_SERVER_LIMIT=512
-DDOCUMENT_LOCATION="/usr/local/www/data/"
-DDEFAULT_PATH="/bin:/usr/bin:/usr/local/bin"
-DACCEPT_FILTER_NAME="httpready" -DUSE_EXPAT
-DXML_BYTE_ORDER=12 -L/usr/lib  -R/usr/local/lib/mysql
-L/usr/local/lib/mysql -R/usr/local/lib -L/usr/local/lib
conftest.c -lz  -lsnmp -lmysqlclient -lm -lcrypt  1>&5
/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'



You can found the complete config.log under
http://www.pofo.de/config.log

I've located the OpenSSL includes under /usr/include/openssl

-- Olli