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This reverts commit 3a60c8ff892a8242b907f44702bfd9f1ff877d45. Buildfarm results show that that caused a whole bunch of new warnings on platforms where gcc believes the local printf to be non-POSIX-compliant. This problem outweighs the hypothetical-anyway possibility of getting warnings for misuse of %m. We could use gnu_printf archetype when we've substituted src/port/snprintf.c, but that brings us right back to the problem of not getting warnings for %m. A possible answer is to attack it in the other direction by insisting that %m support be included in printf's feature set, but that will take more investigation. In the meantime, revert the previous change, and update the comment for PGAC_C_PRINTF_ARCHETYPE to more fully explain what's going on. Discussion: https://postgr.es/m/2975.1526862605@sss.pgh.pa.us
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/.