1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
#serial 10
# See if we need to emulate a missing ftruncate function using fcntl or chsize.
# Copyright (C) 2000, 2001, 2003-2006 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# FIXME: remove this macro, along with all uses of HAVE_FTRUNCATE in 2007,
# if the check below provokes no reports.
AC_DEFUN([gl_FUNC_FTRUNCATE],
[
AC_REPLACE_FUNCS(ftruncate)
if test $ac_cv_func_ftruncate = no; then
gl_PREREQ_FTRUNCATE
# If someone lacks ftruncate, make configure fail, and request
# a bug report to inform us about it.
if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
AC_MSG_FAILURE([Your system lacks the ftruncate function.
Please report this, along with the output of "uname -a", to the
bug-coreutils@gnu.org mailing list. To continue past this point,
rerun configure with SKIP_FTRUNCATE_CHECK=yes.
E.g., ./configure SKIP_FTRUNCATE_CHECK=yes])
fi
fi
])
# Prerequisites of lib/ftruncate.c.
AC_DEFUN([gl_PREREQ_FTRUNCATE],
[
AC_CHECK_FUNCS(chsize)
])
|
