1 # sig_atomic_t.m4 serial 3 2 dnl Copyright (C) 2003, 2009-2012 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 AC_DEFUN([gt_TYPE_SIG_ATOMIC_T], 8 [ 9 AC_CHECK_TYPES([sig_atomic_t], , 10 [AC_DEFINE([sig_atomic_t], [int], 11 [Define as an integer type suitable for memory locations that can be 12 accessed atomically even in the presence of asynchronous signals.])], 13 [#include <signal.h>]) 14 ]) 15
