Nikos Mavrogiannopoulos <[email protected]> writes:

> On Mon, Mar 30, 2020 at 1:23 PM Niels Möller <[email protected]> wrote:
>>
>> The error is
>>
>> 1217 ./bootstrap: getting translations into po/.reference for gnutls...
>> 1218 wget: /lib64/libhogweed.so.5: version `HOGWEED_INTERNAL_5_0' not found 
>> (required by /lib64/libgnutls.so.30)
>> 1219 wget: /lib64/libnettle.so.7: version `NETTLE_INTERNAL_7_0' not found 
>> (required by /lib64/libgnutls.so.30)
>>
>> I don't quite understand all details. This job buils and installs
>> nettle, as
>>
>>   ./configure --disable-documentation --prefix=/usr --libdir=/usr/lib64 &&
>>     make -j4 && make install
>
> That works well as long as binary compatibility is kept. As nettle
> breaks it, applications in the system will be unable to run.

But advertised binary compatibility between Nettle releases considers
only the symbols related to the public api, not the symbols with
*INTERNAL* as version. When gnutls refers to internal symbols, there's
no binary compatibility at all between nettle versions.

I would strongly recommend that the default configuration of gnutls
don't refer to internal nettle symbols. And any packaging of a version
with a non-default configuration enabling use of nettle internals (e.g,
to support more gost curves) needs to depend on a particular version of
nettle, rather than on the soname, which only captures binary
compatibility of the public ABI.

> We may want to install nettle somewhere separately and instruct gnutls
> to use it from there rather than the default locations.

That seems to be the right solution to the immediate problem.

Regards,
/Niels

-- 
Niels Möller. PGP-encrypted email is preferred. Keyid 368C6677.
Internet email is subject to wholesale government surveillance.
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