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source: kBuild/vendor/grep/2.12/m4/ssize_t.m4

Last change on this file was 2595, checked in by bird, 12 years ago

gnu grep version 2.12 (grep-2.12.tar.xz, md5sum=8d2f0346d08b13c18afb81f0e8aa1e2f)

File size: 819 bytes
Line 
1# ssize_t.m4 serial 5 (gettext-0.18.2)
2dnl Copyright (C) 2001-2003, 2006, 2010-2012 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_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])
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