xref: /netbsd-src/external/gpl2/xcvs/dist/m4/ssize_t.m4 (revision a7c918477dd5f12c1da816ba05caf44eab2d06d6)
1# ssize_t.m4 serial 3 (gettext-0.13)
2dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl From Bruno Haible.
8dnl Test whether ssize_t is defined.
9
10AC_DEFUN([gt_TYPE_SSIZE_T],
11[
12  AC_CACHE_CHECK([for ssize_t], gt_cv_ssize_t,
13    [AC_TRY_COMPILE([#include <sys/types.h>],
14       [int x = sizeof (ssize_t *) + sizeof (ssize_t);],
15       gt_cv_ssize_t=yes, gt_cv_ssize_t=no)])
16  if test $gt_cv_ssize_t = no; then
17    AC_DEFINE(ssize_t, int,
18              [Define as a signed type of the same size as size_t.])
19  fi
20])
21