view m4/ssize_t.m4 @ 17729:874a5cc03904

test-userspec: don't look up numeric user names * tests/test-userspec.c: I found a system for which getpwnam("0") returned a pointer to a non-root user's entry, and that made the test fail. (T): Prefix each numeric input with "+", to inhibit lookup.
author Jim Meyering <meyering@fb.com>
date Fri, 18 Jul 2014 14:16:44 -0700
parents 344018b6e5d7
children ab58d4870664
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# ssize_t.m4 serial 5 (gettext-0.18.2)
dnl Copyright (C) 2001-2003, 2006, 2010-2014 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_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <sys/types.h>]],
          [[int x = sizeof (ssize_t *) + sizeof (ssize_t);
            return !x;]])],
       [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
])