adl_COMPUTE_STANDARD_RELATIVE_PATHS
, 

2001年05月25日

Alexandre Duret-Lutz <duret_g@epita.fr>

GPLWithACException
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cryp.to ac-archive's Miscellaneous (released)

Here is the standard hierarchy of paths, as defined by the GNU Coding Standards:

 prefix
 	 exec_prefix
 	 bindir
 	 libdir
 	 libexecdir
 	 sbindir
 	 datadir
 	 sysconfdir
 	 sharestatedir
 	 localstatedir
 	 infodir
 	 lispdir
 	 includedir
 	 oldincludedir
 	 mandir

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 adl_COMPUTE_RELATIVE_PATHS which itself requires adl_NORMALIZE_PATH.

AC_DEFUN([adl_COMPUTE_STANDARD_RELATIVE_PATHS],
## These calls need to be on separate lines for aclocal to work!
[adl_COMPUTE_RELATIVE_PATHS(dnl
adl_STANDARD_RELATIVE_PATH_LIST)])
dnl adl_STANDARD_RELATIVE_PATH_LIST
dnl ===============================
dnl A list of standard paths, ready to supply to adl_COMPUTE_RELATIVE_PATHS.
AC_DEFUN([adl_STANDARD_RELATIVE_PATH_LIST],
[pushdef([TRIPLET],
[$][1:$][2:$][2_forward_relative_path $]dnl
[2:$][1:$][2_backward_relative_path])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, datadir) dnl
TRIPLET(prefix, sysconfdir) dnl
TRIPLET(prefix, sharestatedir) dnl
TRIPLET(prefix, localstatedir) dnl
TRIPLET(prefix, infodir) dnl
TRIPLET(prefix, lispdir) dnl
TRIPLET(prefix, includedir) dnl
TRIPLET(prefix, oldincludedir) dnl
TRIPLET(prefix, mandir) dnl
popdef([TRIPLET])])