Postgresql 中文操作指南

pg_config

pg_config —— 检索有关 PostgreSQL 已安装版本的信 息

pg_config — retrieve information about the installed version of PostgreSQL

Synopsis

pg_config [ option …​]

pg_config [option…​]

Description

pg_config 实用工具打印当前安装的 PostgreSQL 版本的配置参数。其目的是例如供希望与 PostgreSQL 接口的软件包使用，以方便找到所需的标头文件和库。

The pg_config utility prints configuration parameters of the currently installed version of PostgreSQL. It is intended, for example, to be used by software packages that want to interface to PostgreSQL to facilitate finding the required header files and libraries.

Options

要使用 pg_config，请提供以下一个或多个选项：

To use pg_config, supply one or more of the following options:

  • —​bindir

    • Print the location of user executables. Use this, for example, to find the psql program. This is normally also the location where the pg_config program resides.

  • —​docdir

    • Print the location of documentation files.

  • —​htmldir

    • Print the location of HTML documentation files.

  • —​includedir

    • Print the location of C header files of the client interfaces.

  • —​pkgincludedir

    • Print the location of other C header files.

  • —​includedir-server

    • Print the location of C header files for server programming.

  • —​libdir

    • Print the location of object code libraries.

  • —​pkglibdir

    • Print the location of dynamically loadable modules, or where the server would search for them. (Other architecture-dependent data files might also be installed in this directory.)

  • —​localedir

    • Print the location of locale support files. (This will be an empty string if locale support was not configured when PostgreSQL was built.)

  • —​mandir

    • Print the location of manual pages.

  • —​sharedir

    • Print the location of architecture-independent support files.

  • —​sysconfdir

    • Print the location of system-wide configuration files.

  • —​pgxs

    • Print the location of extension makefiles.

  • —​configure

    • Print the options that were given to the configure script when PostgreSQL was configured for building. This can be used to reproduce the identical configuration, or to find out with what options a binary package was built. (Note however that binary packages often contain vendor-specific custom patches.) See also the examples below.

  • —​cc

    • Print the value of the CC variable that was used for building PostgreSQL. This shows the C compiler used.

  • —​cppflags

    • Print the value of the CPPFLAGS variable that was used for building PostgreSQL. This shows C compiler switches needed at preprocessing time (typically, -I switches).

  • —​cflags

    • Print the value of the CFLAGS variable that was used for building PostgreSQL. This shows C compiler switches.

  • —​cflags_sl

    • Print the value of the CFLAGS_SL variable that was used for building PostgreSQL. This shows extra C compiler switches used for building shared libraries.

  • —​ldflags

    • Print the value of the LDFLAGS variable that was used for building PostgreSQL. This shows linker switches.

  • —​ldflags_ex

    • Print the value of the LDFLAGS_EX variable that was used for building PostgreSQL. This shows linker switches used for building executables only.

  • —​ldflags_sl

    • Print the value of the LDFLAGS_SL variable that was used for building PostgreSQL. This shows linker switches used for building shared libraries only.

  • —​libs

    • Print the value of the LIBS variable that was used for building PostgreSQL. This normally contains -l switches for external libraries linked into PostgreSQL.

  • —​version

    • Print the version of PostgreSQL.

  • -?_—​help_

    • Show help about pg_config command line arguments, and exit.

如果给出了多个选项，则将按该顺序打印信息，每行一个项目。如果没有给定任何选项，则将打印所有可用的信息，并带有标签。

If more than one option is given, the information is printed in that order, one item per line. If no options are given, all available information is printed, with labels.

Notes

选项 —​docdir 、 —​pkgincludedir 、 —​localedir 、 —​mandir 、 —​sharedir 、 —​sysconfdir 、 —​cc 、 —​cppflags 、 —​cflags 、 —​cflags_sl 、 —​ldflags 、 —​ldflags_sl 和 —​libs 添加在 PostgreSQL 8.1 中。选项 —​htmldir 添加在 PostgreSQL 8.4 中。选项 —​ldflags_ex 添加在 PostgreSQL 9.0 中。

The options —​docdir, —​pkgincludedir, —​localedir, —​mandir, —​sharedir, —​sysconfdir, —​cc, —​cppflags, —​cflags, —​cflags_sl, —​ldflags, —​ldflags_sl, and —​libs were added in PostgreSQL 8.1. The option —​htmldir was added in PostgreSQL 8.4. The option —​ldflags_ex was added in PostgreSQL 9.0.

Example

要复制当前 PostgreSQL 安装的构建配置，请运行以下命令：

To reproduce the build configuration of the current PostgreSQL installation, run the following command:

eval ./configure `pg_config --configure`

pg_config --configure 的输出包含 shell 引号，因此空格中的参数正确表示。因此，使用 eval 是获得正确结果的必要条件。

The output of pg_config --configure contains shell quotation marks so arguments with spaces are represented correctly. Therefore, using eval is required for proper results.