d7dbc882d3
We weren't particularly maintaining barrier.h before 9.4, because nothing was using it in those branches. Well, nothing until commit 37de8de9e got back-patched. That broke 9.2 and 9.3 for some non-mainstream platforms that we haven't been testing in the buildfarm, including icc on ia64, HPPA, and Alpha. This commit effectively back-patches commits e5592c61a, 89779bf2c, and 747ca6697, though I did it just by copying the file (less copyright date updates) rather than by cherry-picking those commits. Per an attempt to run gaur and pademelon over old branches they've not been run on since ~2013.
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.