1 # ssize_t.m4 serial 5 (gettext-0.18.2) 2 dnl Copyright (C) 2001-2003, 2006, 2010-2012 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 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 ]) 24
