m4/ssize_t.m4


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# ssize_t.m4 serial 3 (gettext-0.13)
dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.
dnl Test whether ssize_t is defined.

AC_DEFUN([gt_TYPE_SSIZE_T],
[
  AC_CACHE_CHECK([for ssize_t], gt_cv_ssize_t,
    [AC_TRY_COMPILE([#include <sys/types.h>],
       [int x = sizeof (ssize_t *) + sizeof (ssize_t);],
       gt_cv_ssize_t=yes, gt_cv_ssize_t=no)])
  if test $gt_cv_ssize_t = no; then
    AC_DEFINE(ssize_t, int,
              [Define as a signed type of the same size as size_t.])
  fi
])