# ===========================================================================

#       http://www.gnu.org/software/autoconf-archive/ax_define_dir.html

# ===========================================================================

#

# SYNOPSIS

#

#   AX_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])

#

# DESCRIPTION

#

#   This macro sets VARNAME to the expansion of the DIR variable, taking

#   care of fixing up ${prefix} and such.

#

#   VARNAME is then offered as both an output variable and a C preprocessor

#   symbol.

#

#   Example:

#

#     AX_DEFINE_DIR([DATADIR], [datadir], [Where data are placed to.])

#

# LICENSE

#

#   Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>

#   Copyright (c) 2008 Andreas Schwab <schwab@suse.de>

#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>

#   Copyright (c) 2008 Alexandre Oliva

#

#   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. This file is offered as-is, without any

#   warranty.

#serial 6

AU_ALIAS([AC_DEFINE_DIR], [AX_DEFINE_DIR])

AC_DEFUN([AX_DEFINE_DIR], [

  prefix_NONE=

  exec_prefix_NONE=

  test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix

  test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix

dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn

dnl refers to ${prefix}.  Thus we have to use `eval' twice.

  eval ax_define_dir="\"[$]$2\""

  eval ax_define_dir="\"$ax_define_dir\""

  AC_SUBST($1, "$ax_define_dir")

  AC_DEFINE_UNQUOTED($1, "$ax_define_dir", [$3])

  test "$prefix_NONE" && prefix=NONE

  test "$exec_prefix_NONE" && exec_prefix=NONE

])