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Autoconf Macro: etr_sysv_ipc
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<h1>
etr_sysv_ipc
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>ETR_SYSV_IPC</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
This macro checks for the SysV IPC header files. It only checks that you
can compile a program with them, not whether the system actually implements
working SysV IPC.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Warren Young <warren@etr-usa.com>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2001-05-25
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([ETR_SYSV_IPC],
[
AC_CACHE_CHECK([for System V IPC headers], ac_cv_sysv_ipc, [
AC_TRY_COMPILE(
[
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
],, ac_cv_sysv_ipc=yes, ac_cv_sysv_ipc=no)
])
if test x"$ac_cv_sysv_ipc" = "xyes"
then
AC_DEFINE(HAVE_SYSV_IPC, 1, [ Define if you have System V IPC ])
fi
]) dnl ETR_SYSV_IPC
</pre>
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