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dnl @synopsis AX_LIB_POSTGRESQL([MINIMUM-VERSION])
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dnl This macro provides tests of availability of PostgreSQL 'libpq'
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dnl library of particular version or newer.
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dnl AX_LIB_POSTGRESQL macro takes only one argument which is optional.
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dnl If there is no required version passed, then macro does not run
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dnl The --with-postgresql option takes one of three possible values:
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dnl no - do not check for PostgreSQL client library
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dnl yes - do check for PostgreSQL library in standard locations
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dnl (pg_config should be in the PATH)
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dnl path - complete path to pg_config utility, use this option if
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dnl pg_config can't be found in the PATH
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dnl AC_SUBST(POSTGRESQL_CFLAGS)
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dnl AC_SUBST(POSTGRESQL_LDFLAGS)
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dnl AC_SUBST(POSTGRESQL_VERSION)
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dnl @category InstalledPackages
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dnl @author Mateusz Loskot <mateusz@loskot.net>
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dnl @version 2006-07-16
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dnl @license AllPermissive
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AC_DEFUN([AX_LIB_POSTGRESQL],
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AC_ARG_WITH([postgresql],
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AC_HELP_STRING([--with-postgresql=@<:@ARG@:>@],
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[use PostgreSQL library @<:@default=yes@:>@, optionally specify path to pg_config]
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if test "$withval" = "no"; then
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elif test "$withval" = "yes"; then
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[want_postgresql="yes"]
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POSTGRESQL_POSTGRESQL=""
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dnl Check PostgreSQL libraries (libpq)
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if test "$want_postgresql" = "yes"; then
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if test -z "$PG_CONFIG" -o test; then
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AC_PATH_PROG([PG_CONFIG], [pg_config], [no])
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if test "$PG_CONFIG" != "no"; then
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AC_MSG_CHECKING([for PostgreSQL libraries])
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POSTGRESQL_CFLAGS="-I`$PG_CONFIG --includedir`"
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POSTGRESQL_LDFLAGS="-L`$PG_CONFIG --libdir` -lpq"
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POSTGRESQL_VERSION=`$PG_CONFIG --version | sed -e 's#PostgreSQL ##'`
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AC_DEFINE([HAVE_POSTGRESQL], [1],
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[Define to 1 if PostgreSQL libraries are available])
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found_postgresql="yes"
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dnl Check if required version of PostgreSQL is available
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postgresql_version_req=ifelse([$1], [], [], [$1])
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if test "$found_postgresql" = "yes" -a -n "$postgresql_version_req"; then
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AC_MSG_CHECKING([if PostgreSQL version is >= $postgresql_version_req])
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dnl Decompose required version string of PostgreSQL
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dnl and calculate its number representation
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postgresql_version_req_major=`expr $postgresql_version_req : '\([[0-9]]*\)'`
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postgresql_version_req_minor=`expr $postgresql_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
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postgresql_version_req_micro=`expr $postgresql_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
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if test "x$postgresql_version_req_micro" = "x"; then
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postgresql_version_req_micro="0"
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postgresql_version_req_number=`expr $postgresql_version_req_major \* 1000000 \
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\+ $postgresql_version_req_minor \* 1000 \
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\+ $postgresql_version_req_micro`
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dnl Decompose version string of installed PostgreSQL
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dnl and calculate its number representation
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postgresql_version_major=`expr $POSTGRESQL_VERSION : '\([[0-9]]*\)'`
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postgresql_version_minor=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
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postgresql_version_micro=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
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if test "x$postgresql_version_micro" = "x"; then
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postgresql_version_micro="0"
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postgresql_version_number=`expr $postgresql_version_major \* 1000000 \
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\+ $postgresql_version_minor \* 1000 \
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\+ $postgresql_version_micro`
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postgresql_version_check=`expr $postgresql_version_number \>\= $postgresql_version_req_number`
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if test "$postgresql_version_check" = "1"; then
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AC_SUBST([POSTGRESQL_VERSION])
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AC_SUBST([POSTGRESQL_CFLAGS])
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AC_SUBST([POSTGRESQL_LDFLAGS])
added
removed
config/ax_lib_postgresql.m4
