3 # See if we need to emulate a missing ftruncate function using fcntl or chsize.
5 # Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
6 # This file is free software; the Free Software Foundation
7 # gives unlimited permission to copy and/or distribute it,
8 # with or without modifications, as long as this notice is preserved.
10 AC_DEFUN([gl_FUNC_FTRUNCATE],
12 AC_REPLACE_FUNCS(ftruncate)
13 if test $ac_cv_func_ftruncate = no; then
18 # Prerequisites of lib/ftruncate.c.
19 AC_DEFUN([gl_PREREQ_FTRUNCATE],
21 AC_CHECK_HEADERS_ONCE(unistd.h)
22 AC_CHECK_FUNCS(chsize)