--- /dev/null
+# SYNOPSIS
+#
+# AX_LIB_POSTGRESQL_SVR([MINIMUM-VERSION])
+#
+# DESCRIPTION
+#
+# This macro provides tests of availability of PostgreSQL server library
+#
+# This macro calls:
+#
+# AC_SUBST(POSTGRESQL_PGXS)
+# AC_SUBST(POSTGRESQL_SERVER_CFLAGS)
+#
+# LICENSE
+#
+# Copyright (c) 2008 Mateusz Loskot <mateusz@loskot.net>
+# Copyright (c) 2015 Sarah Hoffmann <lonia@denofr.de>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved.
+
+AC_DEFUN([AX_LIB_POSTGRESQL_SVR],
+[
+ AC_ARG_WITH([postgresql],
+ AC_HELP_STRING([--with-postgresql-svr=@<:@ARG@:>@],
+ [use PostgreSQL server library @<:@default=yes@:>@, optionally specify path to pg_config]
+ ),
+ [
+ if test "$withval" = "no"; then
+ want_postgresql="no"
+ elif test "$withval" = "yes"; then
+ want_postgresql="yes"
+ else
+ want_postgresql="yes"
+ PG_CONFIG="$withval"
+ fi
+ ],
+ [want_postgresql="yes"]
+ )
+
+ dnl
+ dnl Check PostgreSQL server libraries
+ dnl
+
+ if test "$want_postgresql" = "yes"; then
+
+ if test -z "$PG_CONFIG" -o test; then
+ AC_PATH_PROG([PG_CONFIG], [pg_config], [])
+ fi
+
+ if test ! -x "$PG_CONFIG"; then
+ AC_MSG_ERROR([$PG_CONFIG does not exist or it is not an exectuable file])
+ PG_CONFIG="no"
+ found_postgresql="no"
+ fi
+
+ if test "$PG_CONFIG" != "no"; then
+ AC_MSG_CHECKING([for PostgreSQL server libraries])
+
+ POSTGRESQL_SERVER_CFLAGS="-I`$PG_CONFIG --includedir-server`"
+
+ POSTGRESQL_VERSION=`$PG_CONFIG --version | sed -e 's#PostgreSQL ##'`
+
+ POSTGRESQL_PGXS=`$PG_CONFIG --pgxs`
+ if test -f "$POSTGRESQL_PGXS"
+ then
+ found_postgresql="yes"
+ AC_MSG_RESULT([yes])
+ fi
+ else
+ found_postgresql="no"
+ AC_MSG_RESULT([no])
+ fi
+ fi
+
+ dnl
+ dnl Check if required version of PostgreSQL is available
+ dnl
+
+
+ postgresql_version_req=ifelse([$1], [], [], [$1])
+
+ if test "$found_postgresql" = "yes" -a -n "$postgresql_version_req"; then
+
+ AC_MSG_CHECKING([if PostgreSQL version is >= $postgresql_version_req])
+
+ dnl Decompose required version string of PostgreSQL
+ dnl and calculate its number representation
+ postgresql_version_req_major=`expr $postgresql_version_req : '\([[0-9]]*\)'`
+ postgresql_version_req_minor=`expr $postgresql_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
+ postgresql_version_req_micro=`expr $postgresql_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+ if test "x$postgresql_version_req_micro" = "x"; then
+ postgresql_version_req_micro="0"
+ fi
+
+ postgresql_version_req_number=`expr $postgresql_version_req_major \* 1000000 \
+ \+ $postgresql_version_req_minor \* 1000 \
+ \+ $postgresql_version_req_micro`
+
+ dnl Decompose version string of installed PostgreSQL
+ dnl and calculate its number representation
+ postgresql_version_major=`expr $POSTGRESQL_VERSION : '\([[0-9]]*\)'`
+ postgresql_version_minor=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
+ postgresql_version_micro=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+ if test "x$postgresql_version_micro" = "x"; then
+ postgresql_version_micro="0"
+ fi
+
+ postgresql_version_number=`expr $postgresql_version_major \* 1000000 \
+ \+ $postgresql_version_minor \* 1000 \
+ \+ $postgresql_version_micro`
+
+ postgresql_version_check=`expr $postgresql_version_number \>\= $postgresql_version_req_number`
+ if test "$postgresql_version_check" = "1"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+ fi
+
+ AC_SUBST([POSTGRESQL_PGXS])
+ AC_SUBST([POSTGRESQL_SERVER_CFLAGS])
+])
+