[gnutls-help] How about some AC_MSG for dlopen?

[Daiki Ueno]

Andreas Metzler <ametzler at bebt.de> writes:

> On 2024-08-17 Daiki Ueno <ueno at gnu.org> wrote:
>> Andreas Metzler <ametzler at bebt.de> writes:
>
>> > ./configure is quiet about whether dlopening librariers is supported,
>> > would it make sense to a) add messages and perhaps b) provide a switch
>> > to force use of linking instead?
>
>> That sounds sensible to me, though I'm not sure what it is like a good
>> interface for (b).  Maybe --with-zstd, etc., could take a tri-state
>> argument (no/yes/[dlopen]) and if "yes", the library is linked at build
>> time?
>
> I think it would need to be 4-state,  [dlopen / link / yes (which
> prefers dlopen but does not require it) / no].

Right, that sounds better.

> Alternatively a global setting could be used.
>
> AC_ARG_ENABLE ([dlopen],
>   [AS_HELP_STRING([--disable-dlopen],
>     [link against instead of dlopening some helper libraries]),
>   [ac_dlopen=$withval], [ac_dlopen=no])

I would prefer to have the option per library, because some of the
libraries are less likely to be available than the others (e.g.,
tpm2-tss vs. zlib).

> I do not have a strong preference. I can try to come up with a patch
> once a choice has been made.

That would be appreciated.

Regards,
-- 
Daiki Ueno