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We carried a special implementation of pg_foreach_ifaddr() using Solaris's ioctl(SIOCGLIFCONF), but Solaris 11 and illumos adopted getifaddrs() more than a decade ago, and we prefer to use that. Solaris 10 is EOL'd. Remove the dead code. Adjust comment about which OSes have getifaddrs(), which also incorrectly listed AIX. AIX is in fact the only Unix in the build farm that *doesn't* have it today, so the implementation based on ioctl(SIOCGIFCONF) (note, no 'L') is still live. All the others have had it for at least one but mostly two decades. The last-stop fallback at the bottom of the file is dead code in practice, but it's hard to justify removing it because the better options are all non-standard. Discussion: https://postgr.es/m/CA+hUKGKErNfhmvb_H0UprEmp4LPzGN06yR2_0tYikjzB-2ECMw@mail.gmail.com
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/.