Re: How to autotools figure what library need to be linked to?

[Peng Yu]

I am confused about what belongs to autoconf and what belongs to automake.

For the usually configure -> make -> make install, what belongs to
autoconf what belongs to automake?

Thanks.

On 3/30/21, Bob Friesenhahn <bfriesen@simple.dallas.tx.us> wrote:
> On Mon, 29 Mar 2021, Peng Yu wrote:
>
>> Hi,
>>
>> crypt(3) does not need -lcrypt on macOS, but need -lcrypt on Linux.
>> How does autotools determine what library is need to be linked based
>> on the source code? Thanks.
>
> This is really an Autoconf (configure script) issue and not an
> Automake issue.  The common approach using Autoconf is to test various
> known permutations (starting with nothing, and then adding crypt)
> until linking succeeds.
>
> I expect that there is already a macro from the Autoconf macro archive
> which handles this case.
>
> Bob
> --
> Bob Friesenhahn
> bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
> Public Key,     http://www.simplesystems.org/users/bfriesen/public-key.txt
>


-- 
Regards,
Peng