1 # fdatasync.m4 serial 2
2 dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_FDATASYNC],
9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
10 AC_CHECK_FUNCS_ONCE([fdatasync])
11 if test $ac_cv_func_fdatasync = no; then
14 dnl MacOS X 10.7 has fdatasync but does not declare it.
15 AC_CHECK_DECLS_ONCE([fdatasync])
16 if test $ac_cv_have_decl_fdatasync = no; then