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# -*- Autoconf -*- |
# -*- Autoconf -*- |
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#serial 1 |
# stackovf.m4 -- how do we deal with stack overflow? |
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# Copyright 2000, 2003 Gary V. Vaughan <gary@gnu.org> |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; see the file COPYING. If not, write to |
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# the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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# Boston, MA 02111-1307, USA. |
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# serial 1 |
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# M4_AC_SYS_STACKOVF |
# M4_AC_SYS_STACKOVF |
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# ------------------ |
# ------------------ |
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AC_DEFUN([M4_AC_SYS_STACKOVF], |
AC_DEFUN([M4_AC_SYS_STACKOVF], |
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[AC_REQUIRE([AC_TYPE_SIGNAL])dnl |
[AC_PREREQ(2.56)dnl We use the new compiler based header checking in 2.56 |
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AC_CHECK_HEADERS(siginfo.h) |
AC_REQUIRE([AC_TYPE_SIGNAL])dnl |
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AC_CHECK_HEADERS(siginfo.h, [], [], $ac_default_headers) |
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AC_CHECK_FUNCS(sigaction sigaltstack sigstack sigvec) |
AC_CHECK_FUNCS(sigaction sigaltstack sigstack sigvec) |
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AC_MSG_CHECKING(if stack overflow is detectable) |
AC_MSG_CHECKING(if stack overflow is detectable) |
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# Code from Jim Avera <jima@netcom.com>. |
# Code from Jim Avera <jima@netcom.com>. |