Macro: ac_cxx_dtor_after_atexit

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Synopsis

  `AC_CXX_DTOR_AFTER_ATEXIT`

Version

  1.1.1.1 (2001/07/26) C++_Support @ ac-archive-0.5.39

Author

  Luc Maisonobe

Description

  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.

M4 Source Code

      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
      ])