On Wed, Sep 08, 2021 at 05:31:54PM +0200, Ævar Arnfjörð Bjarmason wrote: > In d73019feb44 (http: add support selecting http version, 2018-11-08) > a dependency was added on CURL_HTTP_VERSION_2_0, but this feature was > introduced in curl version 7.43.0, not 7.47.0, as the incorrect > version check led us to believe. > > As looking through the history of that commit on the mailing list will > reveal[1], the reason for this is that an earlier version of it > depended on CURL_HTTP_VERSION_2TLS, which was introduced in libcurl > 7.47.0. > > But the version that made it in in d73019feb44 had dropped the > dependency on CURL_HTTP_VERSION_2TLS, but the corresponding version > check was not corrected. According to the curl manpage, if we use CURL_HTTP_VERSION_2_0 instead, it goes all the way to 7.33.0. I don't have opinion on whether that's worth covering or not. -Peff
