# serial 18

# See if we need to emulate a missing ftruncate function using chsize.

# Copyright (C) 2000-2001, 2003-2007, 2009-2012 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.

AC_DEFUN([gl_FUNC_FTRUNCATE],
[
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  AC_CHECK_FUNCS_ONCE([ftruncate])
  if test $ac_cv_func_ftruncate = no; then
    HAVE_FTRUNCATE=0
  fi
])

# Prerequisites of lib/ftruncate.c.
AC_DEFUN([gl_PREREQ_FTRUNCATE],
[
  AC_REQUIRE([AC_C_INLINE])
  AC_CHECK_FUNCS([chsize])
])