Thanks a lot Sven. Everything is clear now. On Fri, Jun 5, 2020 at 9:36 PM Sven Joachim <[email protected]> wrote:
> On 2020-06-05 20:35 +0300, Mohammed Alnajdi wrote: > > > Hey Sven, > > Thanks for the fast reply. > > > >> I fail to see how it does that, could you please elaborate? > > https://packages.debian.org/buster/libncurses5-dev has a dependency of > > https://packages.debian.org/buster/libncurses-dev which has a > dependency of > > libncurses6 > > so the tree of dependency libncurses5-dev ---- > libncurses-dev ---- > > > libncurses6 which i believe is not right in terms of the version i am > > wanting to install. > > If i want to install the latest ncurses i would go with libncurses-dev > but > > i picked libncurses5-dev which is version 5 not 6 so why i am getting > > ncurses6 ? > > As the package description tells you, libncurses5-dev is a transitional > package, and you are not really expected to install it. There are two > reasons why it exists: > > - Upgrades from stretch, where apt would otherwise have uninstalled > libncurses5-dev. It is better to pull in libncurses-dev, so that you > don't have to install it manually. > > - Lots of packages build-depend on libncurses5-dev, and I did not want > to file dozens or even hundreds of bugs to change them when a > transitional package solves the problem. > > >> Sorry, not going to happen. In general Debian only provides -dev > >> packages for the latest ABI of libraries, and ncurses is no exception, > >> especially as its API has not changed. > > example python3-dev, python2-dev. > > Those have actually incompatible APIs and need to coexist. By contrast, > any software that worked with libncurses5 should continue to work with > libncurses6 after recompiling. Which is what Debian did for hundreds of > packages. :-) > > > If this is expected behavior than sorry. I am new to this i upgraded from > > stretch to buster and it took me to think issue. > > It is expected behavior, although the libncurses5-dev package should > probably be removed at some point in the future. > > Cheers, > Sven >
