the required -Rpath options or the openssl version will not be
correctly determined when using pkgsrc openssl.
- when running qmake as part of the configure stage, be sure to
run in the configure environment so that QMAKESPEC is picked up.
libssl without linking also libcrypto, which fails on 2.0 since libssl
doesn't have recorded the libcrypto dependency; fix by disabling
the checkLibrary() call when QC_WITH_OPENSSL_LIB is supplied
PR: 28576
SSL/TLS, X509, RSA, Hasing (SHA1, MD5), Ciphers (Blowfish, 3DES, AES).
Uses QT conventions and plugin mechanism, and provides the crypto
services for applications such as PSI (Jabber client).
