ax_compute_standard_relative_paths
==================================

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
          sharestatedir
          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.

Source Code
***********

Download the latest version of ax_compute_standard_relative_paths.m4 (http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_compute_standard_relative_paths.m4) or browse the macro's revision history (http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_compute_standard_relative_paths.m4).

License
*******

Copyright © 2008 Alexandre Duret-Lutz adl@gnu.org
 Copyright © 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 <http://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.