pg_config(1)

NAME

       pg_config  -  retrieve information about the installed version of Post-
       greSQL

SYNOPSIS

       pg_config [ option... ]

DESCRIPTION

       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

       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. (This will be an
              empty string if --without-docdir was specified  when  PostgreSQL
              was built.)

       --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 may 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  Post-
              greSQL 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 build-
              ing 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 build-
              ing PostgreSQL. This shows linker switches.

       --ldflags_sl
              Print  the  value  of  the LDFLAGS_SL variable that was used for
              building PostgreSQL. This shows linker switches used for  build-
              ing shared libraries.

       --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.

       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 infor-
       mation is printed, with labels.

NOTES

       The  option  --includedir-server  was  new  in PostgreSQL 7.2. In prior
       releases, the server include files were installed in the same  location
       as  the  client  headers,  which  could  be  queried  with  the  option
       --includedir. To make your package handle both  cases,  try  the  newer
       option first and test the exit status to see whether it succeeded.

       The   options   --docdir,   --pkgincludedir,   --localedir,   --mandir,
       --sharedir,  --sysconfdir,  --cc,  --cppflags,  --cflags,  --cflags_sl,
       --ldflags, --ldflags_sl, and --libs are new in PostgreSQL 8.1.

       In  releases  prior  to  PostgreSQL 7.1, before pg_config came to be, a
       method for finding the equivalent  configuration  information  did  not
       exist.

EXAMPLE

       To  reproduce the build configuration of the current PostgreSQL instal-
       lation, run the following command:

       eval ./configure `pg_config --configure`

       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.

HISTORY

       The pg_config utility first appeared in PostgreSQL 7.1.

Application                       2008-06-08                      PG_CONFIG(1)