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Autoconf Macro: ac_cxx_dtor_after_atexit
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"http://autoconf-archive.cryp.to/ac_cxx_dtor_after_atexit.m4">Download M4
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<hr>
<h1>
ac_cxx_dtor_after_atexit
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_CXX_DTOR_AFTER_ATEXIT</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
If the C++ compiler calls global destructors after atexit functions, define
HAVE_DTOR_AFTER_ATEXIT. WARNING: If cross-compiling, the test cannot be
performed, the default action is to define HAVE_DTOR_AFTER_ATEXIT.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Todd Veldhuizen, Luc Maisonobe <luc@spaceroots.org>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2004-02-04
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_CXX_DTOR_AFTER_ATEXIT],
[AC_CACHE_CHECK(whether the compiler calls global destructors after functions registered through atexit,
ac_cv_cxx_dtor_after_atexit,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include <unistd.h>
#include <stdlib.h>
static int dtor_called = 0;
class A { public : ~A () { dtor_called = 1; } };
static A a;
void f() { _exit(dtor_called); }
int main (int , char **)
{
atexit (f);
return 0;
}
],
ac_cv_cxx_dtor_after_atexit=yes, ac_cv_cxx_dtor_after_atexit=yes=no,
ac_cv_cxx_dtor_after_atexit=yes)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_dtor_after_atexit" = yes; then
AC_DEFINE(HAVE_DTOR_AFTER_ATEXIT,,
[define if the compiler calls global destructors after functions registered through atexit])
fi
])
</pre>
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