Bug#1085951: libunwind-19-dev: Does not provide libunwind.pc

[Yasushi SHOJI]

Package: libunwind-19-dev
Version: 1:19.1.2-1
Severity: normal

Dear Maintainer,

libunwind-19-dev "Provides" libunwind-dev but it doesn't include
libunwind.NC, which is instead included in libunwind-dev.

This leads not to satisfy dependencies such as from libgstreamer1.0-dev,
which "Depends" libunwind-dev. Even after a successful `sudo apt-get
install libgstreamer1.0-dev`, `pkg-config --cflags gstreamer-1.0` failed
with the following error message:

```
❯ sudo apt-get install libgstreamer1.0-dev
❯ pkg-config --path gstreamer-1.0
/usr/lib/x86_64-linux-gnu/pkgconfig/gstreamer-1.0.pc
❯ grep libunwind /usr/lib/x86_64-linux-gnu/pkgconfig/gstreamer-1.0.pc
Requires.private: gmodule-no-export-2.0, libunwind, libdw
❯ pkg-config --cflags 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
❯ dpkg -l | grep -e 'libunwind.*-dev' -e 'libgstreamer.*-dev'
ii  libgstreamer1.0-dev:amd64     1.24.8-1       amd64    GStreamer
core development files
ii  libunwind-19-dev:amd64        1:19.1.2-1     amd64
production-quality unwinder
```

TIA,

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500,
'stable-debug'), (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, armhf

Kernel: Linux 6.11.2-amd64 (SMP w/24 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libunwind-19-dev depends on:
ii  libunwind-19  1:19.1.2-1

libunwind-19-dev recommends no packages.

libunwind-19-dev suggests no packages.

-- no debconf information
-- 
                 yashi