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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<title>
Autoconf Macro: ac_define_dir_
</title>
<link rel="stylesheet" type="text/css" href="ac-archive.css">
</head>
<body>
<table summary="web navigation" style="width:100%;">
<tbody>
<tr>
<td style="width:50%;" align="center">
<a href="http://autoconf-archive.cryp.to/ac_define_dir_.m4">Download M4
Source</a>
</td>
<td style="width:50%;" align="center">
<a href="macros-by-category.html">Macro Index Page</a>
</td>
</tr>
</tbody>
</table>
<hr>
<h1>
ac_define_dir_
</h1>
<h2>
Obsolete Macro
</h2>
<p class="indent">
Use AC_DEFINE_DIR instead.
</p>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_DEFINE_DIR_(VARNAME, DIR [, DESCRIPTION])</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
This macro _AC_DEFINEs VARNAME to the expansion of the DIR variable, taking
care of fixing up ${prefix} and such.
</p>
<p>
Note that the 3 argument form is only supported with autoconf 2.13 and
later (i.e. only where _AC_DEFINE supports 3 arguments).
</p>
<p>
Examples:
</p>
<pre>
AC_DEFINE_DIR_(DATADIR, datadir)
AC_DEFINE_DIR_(PROG_PATH, bindir, [Location of installed binaries])
</pre>
<p>
This macro is based on Alexandre Oliva's AC_DEFINE_DIR.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Guido Draheim <guidod@gmx.de>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2005-08-01
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_DEFINE_DIR_], [
test "x$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))
])
</pre>
</div>
</body>
</html>
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