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The following set of flags mainly matter when building Postgres code with MSVC and those have been forgotten with latest developments: - HAVE_LDAP_INITIALIZE, added by 35c0754f, and marked as disabled. ldap_initialize() is a non-standard extension that provides a way to use "ldaps" with OpenLDAP, but it is not supported on Windows, and instead the non-standard ldap_sslinit() is used if WIN32 is defined. Per input from Thomas Munro. - HAVE_X509_GET_SIGNATURE_NID, added by 054e8c6c, which is used by SCRAM's channel binding tls-server-end-point. Having this flag disabled would cause this channel binding type to be unsupported for Windows builds. - HAVE_SSL_CLEAR_OPTIONS, added recently as of a364dfa4 to disable SSL compression. - HAVE_ASN1_STRING_GET0_DATA, added by 5c6df67, which is used to track a new compatibility with OpenSSL 1.1.0. This was missing from pg_config.win32.h and is not enabled by default. HAVE_BIO_GET_DATA, HAVE_OPENSSL_INIT_SSL and HAVE_BIO_METH_NEW gain the same treatment. The second and third flags are enabled with this commit, which raises the bar of OpenSSL support to 1.0.2 on Windows as a minimum. As this is the LTS (long-time support) version of OpenSSL community and knowing that all recent installers referred by OpenSSL upstream don't have anymore 1.0.1 or older, we could live with that requirement. In order to allow the code to compile with OpenSSL 1.1.0, all the flags mentioned above need to be enabled in pg_config.h.win32. Author: Michael Paquier Reviewed-by: Andrew Dunstan Discussion: https://postgr.es/m/20180529211559.GF6632@paquier.xyz
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.