From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: bug#40262: R: server certificate verification failed.
Date: Fri, 27 Mar 2020 23:39:25 +0100
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To: Jonathan Brielmaier <jonathan.brielmaier@web.de>
Cc: 40262-done@debbugs.gnu.org


Jonathan Brielmaier <jonathan.brielmaier@web.de> writes:

> Error in open.connection(con, "rb") :
>   server certificate verification failed. CAfile: none CRLfile: none

This is due to a change in r-curl.  We patched it to respect the
CURL_CA_BUNDLE environment variable, not just when it=E2=80=99s used on Win=
dows.
The code has changed since we developed the patch.  Now the
CURLOPT_CAINFO option is only set (in
curl/src/handle.c:set_handle_defaults) when _WIN32 is defined and when
tlsinfo->backend =3D=3D CURLSSLBACKEND_OPENSSL.  Neither of these cases
apply for Guix.

I=E2=80=99ve adjusted the patch in r-curl.

Thank you for the report!

--
Ricardo