On Sat, Dec 02, 2017 at 06:09:39PM +0100, Julien Cristau wrote: > On Thu, Nov 23, 2017 at 15:49:26 +0000, Ian Jackson wrote: > > Reasons I am aware that it *might* be a bad idea are: > > > > 1. libcurl exposes parts of the openssl ABI, via > > CURLOPT_SSL_CTX_FUNCTION, and this would be an implicit ABI break > > without libcurl soname change. This is not good, but it seems like > > the alternative would be to diverge our soname from everyone else's > > for the same libcurl. > > > > 2. For the reason just mentioned, it might be a good idea to put in a > > Breaks against old versions of packages using > > CURLOPT_SSL_CTX_FUNCTION. However, (a) I am not sure if this is > > actually necessary (b) in any case I don't have a good list of all > > the appropriate versions (c) maybe this would need coordination. > > > > 3. This might be an implicit a "transition" (in the Debian release > > management sense) which I would be mishandling, or starting without > > permission, or something. > > > Because of 1 I think we should change the package name (and SONAME) for > libcurl3. I don't think 2 is appropriate.
Following discussion on the ticket (#858398) it was suggested to follow the strategy used for the GCC 5 C++ ABI transition, that is, rename the libcurl package and add Conflicts+Replaces for teh old package. Due to the fact that the previous transition (libcurl3 -> libcurl4) was partially reverted (in 2007 according to the changelog), I'd also like to taeke this opportunity to finally complete that as well, so I made a patch to not only rename libcurl3 -> libcurl4, but also (libcurl3-gnutls, libcurl3-nss) -> (libcurl4-gnutls, libcurl4-nss), and remove the hacks needed to keep compatibility with the previous ABI. Thoughts? The patch is at https://salsa.debian.org/debian/curl/merge_requests/2 CHeers
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