On 5 August 2017 at 06:49, Dirk Eddelbuettel wrote: | On 5 August 2017 at 12:35, Guillem Jover wrote: | | Strictly speaking, libgslcblas does have a SONAME: | | | | $ objdump -p /usr/lib/x86_64-linux-gnu/libgslcblas.so.0 | grep SONAME | | SONAME libgslcblas.so.0 | | | | which means to me that it should guarantee some ABI stability, | | Yes. I have never seen it change its soname in all these years. | | | otherwise this library should become a private library by using RPATH, | | or be folded into the main libgsl library? | | | | And IMO, splitting this library appears as the only correct solution | | here, because: | | | | - Both shared libraries have different SONAMEs that's (I'm assuming) | | why you've had to keep adding Replaces against the old packages when | | bumping the SONAME for the main library. | | - This causes transition problems, as both old and new main library | | packages cannot be installed at the same time, even though by | | themselves alone there would be no filesystem conflicts. Which in | | turn means we cannot have a mix of packages linking against the | | old and new libraries, or in worse conditions a mix of a new -dev | | using the new librs with some other packages using the old libs. | | - If (but I'm not sure if that's possible) one can link only against | | the libgslcblas library, that would cause breakage in case the | | SONAME gets bumped as as the package is not keyed on that, and | | programs linked against the old SONAME would stop working. | | I agree. It's a bit more work, but the better fix. | | | > But it is probably | | > easier to go with 'Breaks: ' as you suggest. | | | | I'd consider that the wrong fix TBH. | | | | > The thing that is unpleasant is that we probably need to keep adding the old | | > soname libraries to debian/control as this progresses. | | | | Not anymore after the libraries have been split. Or perhaps I don't | | understand your concern? | | Yes, it should help with that. | | Thanks for the input!
Now done, and upgrade tested on Debian testing and unstable. Seems to work. Let's hope it doesn't longer in NEW for too long. Thanks for the suggestions and discussion; this was really helpful. Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
