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# =======================================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compute_standard_relative_paths.html
# =======================================================================================
#
# SYNOPSIS
#
# AX_COMPUTE_STANDARD_RELATIVE_PATHS
#
# DESCRIPTION
#
# Here is the standard hierarchy of paths, as defined by the GNU Coding
# Standards:
#
# prefix
# exec_prefix
# bindir
# libdir
# libexecdir
# sbindir
# datarootdir
# docdir
# infodir
# htmldir
# dvidir
# psdir
# pdfdir
# localedir
# datadir (only for autoconf >= 2.59c)
# infodir (only for autoconf >= 2.59c)
# mandir (only for autoconf >= 2.59c)
# lispdir (only for autoconf >= 2.59c)
# datadir (only for autoconf < 2.59c)
# infodir (only for autoconf < 2.59c)
# mandir (only for autoconf < 2.59c)
# lispdir (only for autoconf < 2.59c)
# sysconfdir
# sharedstatedir
# localstatedir
# runstatedir (only for autoconf >= 2.70)
# includedir
# oldincludedir
#
# This macro will setup a set of variables of the form
# 'xxx_forward_relative_path' and 'xxx_backward_relative_path' where xxx
# is one of the above directories. The latter variable is set to the
# relative path to go from xxx to its parent directory, while the former
# hold the other way.
#
# For instance `bindir_relative_path' will contains the value to add to
# $exec_prefix to reach the $bindir directory (usually 'bin'), and
# `bindir_backward_relative_path' the value to append to $bindir to reach
# the $exec_prefix directory (usually '..').
#
# This macro requires AX_COMPUTE_RELATIVE_PATHS which itself requires
# AX_NORMALIZE_PATH.
#
# LICENSE
#
# Copyright (c) 2008 Alexandre Duret-Lutz <adl@gnu.org>
# Copyright (c) 2015 Bastien Roucaries <roucaries.bastien+autoconf@gmail.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 12
AU_ALIAS([ADL_COMPUTE_STANDARD_RELATIVE_PATHS], [AX_COMPUTE_STANDARD_RELATIVE_PATHS])
AC_DEFUN([AX_COMPUTE_STANDARD_RELATIVE_PATHS],
## These calls need to be on separate lines for aclocal to work!
[AX_COMPUTE_RELATIVE_PATHS(dnl
AX_STANDARD_RELATIVE_PATH_LIST)])
dnl AX_STANDARD_RELATIVE_PATH_LIST
dnl ===============================
dnl A list of standard paths, ready to supply to AX_COMPUTE_RELATIVE_PATHS.
AC_DEFUN([AX_STANDARD_RELATIVE_PATH_LIST],
[dnl
pushdef([TRIPLET],dnl
[$][1:$][2:$][2_forward_relative_path $]dnl
[2:$][1:$][2_backward_relative_path])dnl
dnl
TRIPLET(prefix, exec_prefix) dnl
TRIPLET(exec_prefix, bindir) dnl
TRIPLET(exec_prefix, libdir) dnl
TRIPLET(exec_prefix, libexecdir) dnl
TRIPLET(exec_prefix, sbindir) dnl
TRIPLET(prefix, datarootdir) dnl
TRIPLET(datarootdir, docdir) dnl
TRIPLET(datarootdir, infodir) dnl
TRIPLET(datarootdir, htmldir) dnl
TRIPLET(datarootdir, dvidir) dnl
TRIPLET(datarootdir, psdir) dnl
TRIPLET(datarootdir, pdfdir) dnl
TRIPLET(datarootdir, localedir) dnl
m4_version_prereq([2.59c],[TRIPLET(datarootdir,datadir)],[TRIPLET(prefix,datadir)]) dnl
m4_version_prereq([2.59c],[TRIPLET(datarootdir,infodir)],[TRIPLET(prefix,infodir)]) dnl
m4_version_prereq([2.59c],[TRIPLET(datarootdir,mandir)],[TRIPLET(prefix,mandir)]) dnl
m4_version_prereq([2.59c],[TRIPLET(datarootdir,lispdir)],[TRIPLET(prefix,lispdir)]) dnl
TRIPLET(prefix, sysconfdir) dnl
TRIPLET(prefix, sharedstatedir) dnl
TRIPLET(prefix, localstatedir) dnl
dnl only available for >=2.70
m4_version_prereq([2.70],[TRIPLET(localstatedir,runstatedir)],[[]]) dnl
TRIPLET(prefix, includedir) dnl
TRIPLET(prefix, oldincludedir) dnl
popdef([TRIPLET])])
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