56f8f9624b
FD_SETSIZE is included in sys/select.h per POSIX, and this header inclusion has been moved to scripts_parallel.c as of 5f38403 without moving the variable, causing a compilation failure on recent versions of OpenBSD (6.6 was the version used in the report). In order to take care of the failure, move FD_SETSIZE directly to scripts_parallel.c with a wrapper controlling the maximum number of parallel slots supported, based on a suggestion by Andres Freund. While on it, reduce the maximum number to be less than FD_SETSIZE, leaving some room for stdin, stdout and such as they consume some file descriptors. The buildfarm did not complain about that, as it happens to only be an issue on recent versions of OpenBSD and there is no coverage in this area. 51c3e9f fixed a similar set of issues. Bug: #15964 Reported-by: Sean Farrell Discussion: https://postgr.es/m/15964-c1753bdfed722e04@postgresql.org
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/.