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Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch
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Perl 4.6%
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Meson 0.7%
Other 2.2%
f5e0186f86
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Peter Eisentraut f5e0186f86 Raise C requirement to C11 
This changes configure and meson.build to require at least C11,
instead of the previous C99.  The installation documentation is
updated accordingly.

configure.ac previously used AC_PROG_CC_C99 to activate C99.  But
there is no AC_PROG_CC_C11 in Autoconf 2.69, because it's too
old.  (Also, post-2.69, the AC_PROG_CC_Cnn macros were deprecated and
AC_PROG_CC activates the last supported C mode.)  We could update the
required Autoconf version, but that might be a separate project that
no one wants to undertake at the moment.  Instead, we open-code the
test for C11 using some inspiration from later Autoconf versions.  But
instead of writing an elaborate test program, we keep it simple and
just check __STDC_VERSION__, which should be good enough in practice.

In meson.build, we update the existing C99 test to C11, but again we
just check for __STDC_VERSION__.

This also removes the separate option for the conforming preprocessor
on MSVC, added by commit 8fd9bb1d96, since that is activated
automatically in C11 mode.

Note, we don't use the "official" way to set the C standard in Meson
using the c_std project option, because that is impossible to use
correctly (see <https://github.com/mesonbuild/meson/issues/14717>).

Reviewed-by: David Rowley <dgrowleyml@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/01a69441-af54-4822-891b-ca28e05b215a@eisentraut.org
2025-08-26 11:50:46 +02:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Improve prep_buildtree 2025-08-04 14:06:58 +02:00
contrib Change dynahash.c and hsearch.h to use int64 instead of long 2025-08-22 11:59:02 +09:00
doc Raise C requirement to C11 2025-08-26 11:50:46 +02:00
src Message wording improvements 2025-08-25 23:15:24 +02:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.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 Add script to keep .editorconfig in sync with .gitattributes 2025-02-01 10:09:45 +01:00
.git-blame-ignore-revs Add commit 1d1612aec7 to .git-blame-ignore-revs. 2025-07-29 10:32:53 -05:00
.gitattributes Fix git whitespace warning 2025-08-15 10:32:35 +02:00
.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 Raise C requirement to C11 2025-08-26 11:50:46 +02:00
configure.ac Raise C requirement to C11 2025-08-26 11:50:46 +02:00
COPYRIGHT Align organization wording in copyright statement 2025-05-16 11:20:07 -04:00
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 Remove AIX support 2024-02-28 15:17:23 +04:00
meson_options.txt Add support for basic NUMA awareness 2025-04-07 23:08:17 +02:00
meson.build Raise C requirement to C11 2025-08-26 11:50:46 +02:00
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/.