ac_define_dir_

This macro _AC_DEFINEs VARNAME to the expansion of the DIR variable, taking care of fixing up ${prefix} and such.

Note that the 3 argument form is only supported with autoconf 2.13 and later (i.e. only where _AC_DEFINE supports 3 arguments).

Examples:

   AC_DEFINE_DIR_(DATADIR, datadir)
   AC_DEFINE_DIR_(PROG_PATH, bindir, [Location of installed binaries])

This macro is based on Alexandre Oliva's AC_DEFINE_DIR.

AC_DEFUN([AC_DEFINE_DIR_], [
  test "x$prefix" = xNONE && prefix="$ac_default_prefix"
  test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
  ac_define_dir=`eval "echo [$]$2"`
  ac_define_dir=`eval "echo [$]ac_define_dir"`
  ifelse($3, ,dnl
    AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),dnl
    AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
])

Copyright © 2006 Guido U. Draheim <guidod@gmx.de>

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.

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