port to OpenSSL 1.1

- check for better functions in configure
- update SSL initialization call

configure.ac

@@ -152,13 +152,13 @@ dnl ** happily, we don't have to hunt for them thanks to ldconfig!
 dnl **
 if test -n $sslincludedir; then
      CPPFLAGS="$CPPFLAGS $sslincludedir"
-     AC_CHECK_LIB(crypto,CRYPTO_num_locks)
-     if test "$ac_cv_lib_crypto_CRYPTO_num_locks" != "yes"
+     AC_CHECK_LIB(crypto,OPENSSL_init)
+     if test "$ac_cv_lib_crypto_OPENSSL_init" != "yes"
      then
              AC_MSG_ERROR([** Unable to find OpenSSL libraries!])
      fi
-     AC_CHECK_LIB(ssl,SSL_library_init)
-     if test "$ac_cv_lib_ssl_SSL_library_init" != "yes"
+     AC_CHECK_LIB(ssl,OPENSSL_init_ssl)
+     if test "$ac_cv_lib_ssl_OPENSSL_init_ssl" != "yes"
      then
              AC_MSG_ERROR([** Unable to find OpenSSL libraries!])
      fi

lib5250/sslstream.c

@@ -368,7 +368,7 @@ int tn5250_ssl_stream_init (Tn5250Stream *This)
 /*  initialize SSL library */
 
    SSL_load_error_strings();
-   SSL_library_init();
+   OPENSSL_init_ssl(0, NULL);
 
 /*  which SSL method do we use? */