It seems like OpenSSH 5.0p1 is ignoring the '--without-openssl-header-check' switch when being built. I configure the build using the command: ./configure --prefix=/usr/local --with-zlib=/usr/local/lib --with-ssl-dir=/usr/local/ssl --without-openssl-header-check --with-kerberos5=/usr/local But, after building and moving to a system with a newer version of OpenSSL, I get: root@nessie:/usr/local>/usr/local/bin/ssh -V OpenSSL version mismatch. Built against 908070, you have 90808f I believe this worked with OpenSSH 4.7p1. Am I missing something, or was this functionality (inadvertently??) removed? Thanks, Dan Dan_Mitton@xxxxxxx