Macro: ac_define_dir_

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Synopsis

  `AC_DEFINE_DIR_(VARNAME, DIR [, DESCRIPTION])`

Version

  1.1.1.1 (2001/07/26) guidod @ ac-archive-0.5.39

Author

  Guido Draheim <guidod@gmx.de>, from _AC_DEFINE_DIR by oliva@

Description

  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])`

M4 Source Code

      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))
      ])