Hi Andy, > fatal error: openssl/cms.h: No such file or directory. Seems that this version of OpenSSL does not support CMS which is used by our new OpenSSL PKCS#7 backend. Please try the patch at [1], it should disable PKCS#7 in such cases. Regards Martin [1]http://git.strongswan.org/?p=strongswan.git;a=commitdiff;h=2b9e597b