| 1 | # ssize_t.m4 serial 5 (gettext-0.18.2) |
| 2 | dnl Copyright (C) 2001-2003, 2006, 2010-2014 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 | dnl From Bruno Haible. |
| 8 | dnl Test whether ssize_t is defined. |
| 9 | |
| 10 | AC_DEFUN([gt_TYPE_SSIZE_T], |
| 11 | [ |
| 12 | AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t], |
| 13 | [AC_COMPILE_IFELSE( |
| 14 | [AC_LANG_PROGRAM( |
| 15 | [[#include <sys/types.h>]], |
| 16 | [[int x = sizeof (ssize_t *) + sizeof (ssize_t); |
| 17 | return !x;]])], |
| 18 | [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])]) |
| 19 | if test $gt_cv_ssize_t = no; then |
| 20 | AC_DEFINE([ssize_t], [int], |
| 21 | [Define as a signed type of the same size as size_t.]) |
| 22 | fi |
| 23 | ]) |