pg_config
pg_config — retrieve information about the installed version ofPostgreSQL
Synopsis
pg_config
[option
...]
Description
Thepg_config utility prints configuration parameters of the currently installed version ofPostgreSQL. It is intended, for example, to be used by software packages that want to interface toPostgreSQL to facilitate finding the required header files and libraries.
Options
To usepg_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 thepg_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 whenPostgreSQL 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 whenPostgreSQL 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 buildingPostgreSQL. This shows the C compiler used.--cppflags
Print the value of the
CPPFLAGS
variable that was used for buildingPostgreSQL. This shows C compiler switches needed at preprocessing time (typically,-I
switches).--cflags
Print the value of the
CFLAGS
variable that was used for buildingPostgreSQL. This shows C compiler switches.--cflags_sl
Print the value of the
CFLAGS_SL
variable that was used for buildingPostgreSQL. This shows extra C compiler switches used for building shared libraries.--ldflags
Print the value of the
LDFLAGS
variable that was used for buildingPostgreSQL. This shows linker switches.--ldflags_ex
Print the value of the
LDFLAGS_EX
variable that was used for buildingPostgreSQL. This shows linker switches used for building executables only.--ldflags_sl
Print the value of the
LDFLAGS_SL
variable that was used for buildingPostgreSQL. This shows linker switches used for building shared libraries only.--libs
Print the value of the
LIBS
variable that was used for buildingPostgreSQL. This normally contains-l
switches for external libraries linked intoPostgreSQL.--version
Print the version ofPostgreSQL.
-?
--help
Show help aboutpg_config command line arguments, and exit.
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
The options--docdir
,--pkgincludedir
,--localedir
,--mandir
,--sharedir
,--sysconfdir
,--cc
,--cppflags
,--cflags
,--cflags_sl
,--ldflags
,--ldflags_sl
, and--libs
were added inPostgreSQL 8.1. The option--htmldir
was added inPostgreSQL 8.4. The option--ldflags_ex
was added inPostgreSQL 9.0.
Example
To reproduce the build configuration of the current PostgreSQL installation, run the following command:
eval ./configure `pg_config --configure`
The output ofpg_config --configure
contains shell quotation marks so arguments with spaces are represented correctly. Therefore, usingeval
is required for proper results.