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Peter Eisentraut c546f008cd headerscheck: Avoid mutual inclusion of pg_config.h and c.h 
Headers that c.h includes early should not have another header
included before them in the headerscheck test file, especially not
c.h.

A particular instance of a problem is that pg_config.h defines some
symbols that c.h later undefines in some cases, such as in the code
added by commit cd083b54bd, but there were also some before that.
This only works correctly if pg_config.h is included first.

pg_config_manual.h and pg_config_os.h are closely related to
pg_config.h and should be treated the same way.

postgres_ext.h is meant to be usable standalone, so testing it with
c.h included first defeats the point.

c.h also includes port.h, but this commit leaves that alone, since
port.h does need some of c.h to be processed first.  (But because of
header guards, testing port.h separately is probably ineffective.)

Discussion: https://www.postgresql.org/message-id/flat/579116be-5016-4dbc-aed0-c06f8d9f5bbb%40eisentraut.org
2026-03-30 10:14:41 +02:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
contrib psql: Make \d+ partition list formatting consistent with other objects 2026-03-30 11:06:42 +09:00
doc Doc: fix stale text about partition locking with cached plans 2026-03-30 10:29:21 +09:00
src headerscheck: Avoid mutual inclusion of pg_config.h and c.h 2026-03-30 10:14:41 +02:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml ci: Run headerscheck and cpluspluscheck in parallel 2026-03-23 08:40:29 +01:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add commit 015d32016d to .git-blame-ignore-revs. 2026-03-19 13:45:07 +09:00
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Remove compiler warning option -Wendif-labels 2026-03-25 15:04:18 +01:00
configure.ac Remove compiler warning option -Wendif-labels 2026-03-25 15:04:18 +01:00
COPYRIGHT Update copyright for 2026 2026-01-01 13:24:10 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Enable warning like -Wstrict-prototypes on MSVC as well 2026-03-27 08:28:07 +01:00
meson_options.txt Update copyright for 2026 2026-01-01 13:24:10 -05:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

README.md

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.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.