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New versions of perl trigger warnings within perl.h with our compiler flags. At least -Wdeclaration-after-statement, -Wshadow=compatible-local are known to be problematic. To avoid these warnings, conditionally use #pragma GCC system_header before including plperl.h. Alternatively, we could add the include paths for problematic headers with -isystem, but that is a larger hammer and is harder to search for. A more granular alternative would be to use #pragma GCC diagnostic push/ignored/pop, but gcc warns about unknown warnings being ignored, so every to-be-ignored-temporarily compiler warning would require its own pg_config.h symbol and #ifdef. As the warnings are voluminous, it makes sense to backpatch this change. But don't do so yet, we first want gather buildfarm coverage - it's e.g. possible that some compiler claiming to be gcc compatible has issues with the pragma. Author: Andres Freund <andres@anarazel.de> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: Discussion: https://postgr.es/m/20221228182455.hfdwd22zztvkojy2@awork3.anarazel.de |
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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/.