Actually I just ran into this one on my Debian testing ("forky") installation.As far as I've looked into it, the problem seems to stem from the fact that libunwind-dev happens to be matching both the actual package (corresponding to the specific version 1.8.1), and the virtual package, which is provided by multiple versions--only that the latter is now in process of being phased out in favor of the more generically named libunwind-x.y-dev. I suppose switching the dependency from libunwind-dev onto libunwind-x.y-dev should be the correct approach here. On Fri, 03 Feb 2023 17:55:17 +0100 Vadim Zeitlin <[email protected]> wrote: > Package: libgstreamer1.0-dev > Version: 1.22.0-2 > Severity: important > X-Debbugs-Cc: [email protected] > > Dear Maintainer, > > libgstreamer1.0-dev package has a dependency on libunwind-dev which can be > satisfied by libunwind-14-dev, but this doesn't seem to actually work > because it's libunwind itself which is listed as a dependency in e.g. > /usr/lib/x86_64-linux-gnu/pkgconfig/gstreamer-1.0.pc resulting in the > following when trying to use the package: > > $ pkg-config --exists --print-errors gstreamer-1.0 > Package libunwind was not found in the pkg-config search path. > Perhaps you should add the directory containing `libunwind.pc' > to the PKG_CONFIG_PATH environment variable > Package 'libunwind', required by 'gstreamer-1.0', not found > > Maybe there is a bug in libunwind-14-dev which doesn't provide libunwind.pc > but the net effect is that it's impossible to use libgstreamer-dev and > libc++-dev together because the latter requires libunwind-14-dev and > installing libunwind-dev would uninstall it, so it is a fatal problem for > me. > > Thanks in advance for your help! > > -- System Information: > Debian Release: bookworm/sid > APT prefers testing-debug > APT policy: (500, 'testing-debug'), (500, 'testing') > Architecture: amd64 (x86_64) > > Kernel: Linux 6.0.0-4-amd64 (SMP w/16 CPU threads; PREEMPT) > Kernel taint flags: TAINT_CPU_OUT_OF_SPEC > Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to > C), LANGUAGE=en_US:en > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > LSM: AppArmor: enabled > > Versions of packages libgstreamer1.0-dev depends on: > ii gir1.2-gstreamer-1.0 1.22.0-2 > ii libc6 2.36-8 > ii libc6-dev [libc-dev] 2.36-8 > ii libdw-dev 0.188-2.1 > ii libglib2.0-0 2.74.5-1 > ii libglib2.0-dev 2.74.5-1 > ii libgstreamer1.0-0 1.22.0-2 > ii libunwind-14-dev [libunwind-dev] 1:14.0.6-10+b1 > ii pkg-config 1.8.1-1 > ii pkgconf [pkg-config] 1.8.1-1 > > libgstreamer1.0-dev recommends no packages. > > Versions of packages libgstreamer1.0-dev suggests: > pn gstreamer1.0-doc <none> > > -- no debconf information > >
