pg_config

Function

pg_config is used to print the configuration parameters of the installed database, which helps find the header file and library corresponding to the software package connected to the database.

Syntax

pg_config [option...]

Parameter Description

The pg_config tool supports one or more of the following options. If more than one option is provided, the information is printed in sequence. Each line contains one option. If no option is given, all available information is printed with the label.

• -bindir

  Prints the path of the executable file of a user. For example, you can use this option to find the psql program. Generally, this is the path of the pg_config program.

• -docdir

  Prints the location of a document.

• -htmldir

  Prints the location of the HTML file.

• -includedir

  Prints the path of the C header file of the client interface.

• -pkgincludedir

  Prints the location of other C header files.

• -includedir-server

  Prints the location of the C header files used for server programming.

• -libdir

  Prints the path of the target code library.

• -pkglibdir

  Prints the location of dynamically loaded modules, or where the server looks for them. Data files related to other systems may also be stored in this directory.

• -localedir

  Prints the location of the locale support file. If the locale support is not configured when the database is compiled, the value is an empty string.

• -mandir

  Prints the location of the manual page.

• -sharedir

  Prints the location of system-independent support files.

• -sysconfdir

  Prints the location of the system-wide configuration file.

• -pgxs

  Prints the location of the extended makefiles file.

• -configure

  Prints the options passed to the configure script during configuration and database compilation. The options are used to copy the same configuration or find out which options are used to compile the binary package. However, note that binary packages usually contain vendor-provided patches.

• -cc

  Prints the values of the CC variables used to compile the database. This option displays the C compiler in use.

• -cppflags

  Prints the value of the CPPFLAGS variable used to compile the database. This option displays the C compiler switch (usually -I) needed for preprocessing.

• -cflags

  Prints the value of the CFLAGS variable used during database compilation. This option displays the C compiler switch.

• -cflags_sl

  Prints the value of the CFLAGS_SL variable used during database compilation. This option shows the additional C compiler switch for compiling the shared library.

• -ldflags

  Prints the value of the LDFLAGS variable used during database compilation. It shows the linker's switch.

• -ldflags_ex

  Prints the value of the LDFLAGS_EX variable used to create the database. This shows the linker switch for building executable files.

• -ldflags_sl

  Prints the value of the LDFLAGS_SL variable used during database compilation. It shows the switch of the linker used to compile the shared library.

• -libs

  Prints the value of the LIBS variable used during database compilation. It usually contains the -l switch of the external library connected to the database.

• -version

  Prints the database version.

• -?, -help

  Displays help information about pg_config command parameters and exits.