From mboxrd@z Thu Jan  1 00:00:00 1970
From: Willem Jan Withagen <wjw@digiware.nl>
Subject: Re: what's the default package for configure without any parameters?
Date: Fri, 18 Mar 2016 12:43:31 +0100
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To: Jaze Lee <jazeltq@gmail.com>, ceph-devel@vger.kernel.org

On 18-3-2016 04:29, Jaze Lee wrote:
> Hi, all
>     I run the ./configure without any parameter.How can i know the
> default configure options?

You can run ./configure --help

Some options tell you what their default state is.
The others I

Otherwise browse thru configure.ac looking for the line with "WITH_"on it.
And the harder version just run it and examine the output.

I think that the S[] array in config.status could help.
Options there are TRUE/FALSE and the combo like:

S["FREEBSD_FALSE"]=""
S["FREEBSD_TRUE"]="#"

Would indicate that this is not FreeBSD.
And the WITH_ values are there also.

--WjW