can not compile syncml plugin

Any thoughts about why I might be getting this??

checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
appending configuration tag "F77" to libtool
checking for pthread_create in -lpthread... yes
checking for RAND_bytes in -lcrypto... no
configure: error: You must have libcrypto (OpenSSL) installed.
jamaas@Bossy:~/downloads/multisync/plugins/syncml_plugin$


I'm running a Ubuntu Hoary version of debian, on i686 and have installed
openssl 0.9.7e-3
libcripto++ 5.2.1a-1   plus the dev and utils packages but still get 
this error.

Any suggestions most welcome.

Thanks

Jim

-- 
==============================================
Dr. Jim Maas

jamaas at btinternet dot com 


This message has been checked for viruses but the contents of an attachment
may still contain software viruses, which could damage your computer system:
you are advised to perform your own checks. Email communications with the
University of Nottingham may be monitored as permitted by UK legislation.



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click