1dnl @synopsis AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])
2dnl
3dnl This macro defines (with AC_DEFINE) VARNAME to the expansion of the DIR
4dnl variable, taking care of fixing up ${prefix} and such.
5dnl
6dnl Note that the 3 argument form is only supported with autoconf 2.13 and
7dnl later (i.e. only where AC_DEFINE supports 3 arguments).
8dnl
9dnl Examples:
10dnl
11dnl    AC_DEFINE_DIR(DATADIR, datadir)
12dnl    AC_DEFINE_DIR(PROG_PATH, bindir, [Location of installed binaries])
13dnl
14dnl @version $Id: acinclude.m4,v 1.3 2000/08/04 03:26:22 stenn Exp $
15dnl @author Alexandre Oliva <oliva@lsd.ic.unicamp.br>
16
17AC_DEFUN([AC_DEFINE_DIR], [
18	ac_expanded=`(
19	    test "x$prefix" = xNONE && prefix="$ac_default_prefix"
20	    test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
21	    eval echo \""[$]$2"\"
22        )`
23	ifelse($3, ,
24	  AC_DEFINE_UNQUOTED($1, "$ac_expanded"),
25	  AC_DEFINE_UNQUOTED($1, "$ac_expanded", $3))
26])
27