OpenSSL on Ubuntu

[tinc at kb3ien.us]

uname -a
Linux blackbird 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC 
2009 x86_64 GNU/Linux

plain
`configure` results in this:
.
.
.
checking whether getnameinfo is declared... yes
checking openssl/evp.h usability... no
checking openssl/evp.h presence... no
checking for openssl/evp.h... no
configure: error: OpenSSL header files not found.

giving it the path to openssl fares only slightly better:
./configure --with-openssl=/usr/src/openssl-0.9.8g/
.
.
.
checking whether getaddrinfo is declared... yes
checking whether getnameinfo is declared... yes
checking openssl/evp.h usability... yes
checking openssl/evp.h presence... yes
checking for openssl/evp.h... yes
checking openssl/rsa.h usability... yes
checking openssl/rsa.h presence... yes
checking for openssl/rsa.h... yes
checking openssl/rand.h usability... yes
checking openssl/rand.h presence... yes
checking for openssl/rand.h... yes
checking openssl/err.h usability... yes
checking openssl/err.h presence... yes
checking for openssl/err.h... yes
checking openssl/sha.h usability... yes
checking openssl/sha.h presence... yes
checking for openssl/sha.h... yes
checking openssl/pem.h usability... yes
checking openssl/pem.h presence... yes
checking for openssl/pem.h... yes
checking openssl/engine.h usability... yes
checking openssl/engine.h presence... yes
checking for openssl/engine.h... yes
checking for SHA1_version in -lcrypto... no
configure: error: OpenSSL libraries not found.


I saw a similar thread posted a few years back, but the resolution was 
strangely missing from the dialouge in the achives.

TIA

robin