Target system is Centos 5. I just installed OpenSSL 0.9.8i and linked using:
LIBS += -L/usr/local/ssl/lib -lssl -lcrypto -lpcap -lm -ldl
It builds cleanly with the exception of what appear to be 2 minor incompatible pointer type warnings like "sslx_print_certificate"
when I run ssldump -i eth0 I get:
ERROR: Couldn't create network handler