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Autoconf Macro: ac_func_mkdir
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<h1>
ac_func_mkdir
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_FUNC_MKDIR</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
Check whether mkdir() is mkdir or _mkdir, and whether it takes one or two
arguments.
</p>
<p>
This macro can define HAVE_MKDIR, HAVE__MKDIR, and MKDIR_TAKES_ONE_ARG,
which are expected to be used as follows:
</p>
<pre>
#if HAVE_MKDIR
# if MKDIR_TAKES_ONE_ARG
/* MinGW32 */
# define mkdir(a, b) mkdir(a)
# endif
#else
# if HAVE__MKDIR
/* plain Windows 32 */
# define mkdir(a, b) _mkdir(a)
# else
# error "Don't know how to create a directory on this system."
# endif
#endif
</pre>
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<h2>
Author
</h2>
<p class="indent">
Alexandre Duret-Lutz <adl@gnu.org>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2003-12-28
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_FUNC_MKDIR],
[AC_CHECK_FUNCS([mkdir _mkdir])
AC_CACHE_CHECK([whether mkdir takes one argument],
[ac_cv_mkdir_takes_one_arg],
[AC_TRY_COMPILE([
#include <sys/stat.h>
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
], [mkdir (".");],
[ac_cv_mkdir_takes_one_arg=yes], [ac_cv_mkdir_takes_one_arg=no])])
if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then
AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1,
[Define if mkdir takes only one argument.])
fi
])
dnl Note:
dnl =====
dnl I have not implemented the following suggestion because I don't have
dnl access to such a broken environment to test the macro. So I'm just
dnl appending the comments here in case you have, and want to fix
dnl AC_FUNC_MKDIR that way.
dnl
dnl |Thomas E. Dickey (dickey@herndon4.his.com) said:
dnl | it doesn't cover the problem areas (compilers that mistreat mkdir
dnl | may prototype it in dir.h and dirent.h, for instance).
dnl |
dnl |Alexandre:
dnl | Would it be sufficient to check for these headers and #include
dnl | them in the AC_TRY_COMPILE block? (and is AC_HEADER_DIRENT
dnl | suitable for this?)
dnl |
dnl |Thomas:
dnl | I think that might be a good starting point (with the set of recommended
dnl | ifdef's and includes for AC_HEADER_DIRENT, of course).
</pre>
</div>
<h2>
License
</h2>
<div class="indent">
<span style="white-space:nowrap;">Copyright © 2003 Alexandre Duret-Lutz
<adl@gnu.org></span>
<p>
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.
</p>
<p>
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.
</p>
<p>
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with this program; if not, write to the Free Software Foundation, Inc., 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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