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Struct QL_HELP used to be defined as static in the sql_help.h header file, which is included in sql_help.c and help.c, thus creating two separate instances of the struct. This causes a warning from GCC 6, because the struct is not used in sql_help.c. Instead, declare the struct as extern in the header file and define it in sql_help.c. This also allows making a bunch of functions static because they are no longer needed outside of sql_help.c. Reviewed-by: Thomas Munro <thomas.munro@enterprisedb.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: 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/.