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Unlike the other implementations of getopt_long() I could find, the in-tree implementation does not reorder non-options to the end of argv. Instead, it returns -1 as soon as the first non-option is found, even if there are other options listed afterwards. By moving non-options to the end of argv, getopt_long() can parse all specified options and return -1 when only non-options remain. This quirk is periodically missed by hackers (e.g., 869aa40a27, ffd398021c, and d9ddc50baf). This commit introduces the aforementioned non-option reordering behavior to the in-tree getopt_long() implementation. Special thanks to Noah Misch for his help verifying behavior on AIX. Reviewed-by: Kyotaro Horiguchi, Michael Paquier Discussion: https://postgr.es/m/20230609232257.GA121461%40nathanxps13
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/.