No pkg-config file in libdocopt-dev

[Alexander Sashnov]

No pkg-config file in libdocopt-dev. It causes build process failed because it relies on finding a library via pkg-config:

Steps to reproduce:

$ git clone <email address hidden>:openzim/zim-tools.git
$ cd zim-tools/
$ mkdir build
$ cd build/
$ meson ..

Actual result:

 The Meson build system
 Version: 0.45.1
 Source dir: /home/alex/tmp/zim-tools
 Build dir: /home/alex/tmp/zim-tools/build
 Build type: native build
 Project name: zim-tools
 Native C compiler: ccache cc (gcc 7.5.0 "cc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")
 Native C++ compiler: ccache c++ (gcc 7.5.0 "c++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")
 Build machine cpu family: x86_64
 Build machine cpu: x86_64
 Found pkg-config: /usr/bin/pkg-config (0.29.1)
 Native dependency libzim found: YES 6.1.4
 Dependency rt found: NO

meson.build:20:0: ERROR: Native dependency 'docopt' not found

(please, don't mind this 'rt' library absence, it's OK).

In /home/alex/tmp/zim-tools/build/meson-logs/meson-log.txt:

 Determining dependency 'docopt' with pkg-config executable '/usr/bin/pkg-config'
 meson.build:20:0: ERROR: Native dependency 'docopt' not found

Expected result:

Meson should find libdocopt via pkg-config

Additional info

 $ dpkg -L libdocopt-dev | grep pc
 <empty output>

Other packages have it, for example:

 $ dpkg -L libzstd-dev | grep pc
 /usr/lib/x86_64-linux-gnu/pkgconfig/libzstd.pc

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libdocopt-dev 0.6.2-2
Uname: Linux 4.19.91-041991-lowlatency x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 14 12:41:18 2020
Dependencies:
 gcc-8-base 8.4.0-1ubuntu1~18.04
 libc6 2.27-3ubuntu1
 libdocopt0 0.6.2-2
 libgcc1 1:8.4.0-1ubuntu1~18.04
 libstdc++6 8.4.0-1ubuntu1~18.04
InstallationDate: Installed on 2019-10-27 (260 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: docopt.cpp
UpgradeStatus: No upgrade log present (probably fresh install)

[Alexander Sashnov (sashnov)]

After creation of this stub compilation was sucessful:

 $ cat /usr/lib/x86_64-linux-gnu/pkgconfig/docopt.pc
 prefix=/usr
 libdir=/usr/lib
 includedir=/usr/include

 Name: docopt
 Description: C++11 port of docopt
 URL: http://docopt.org/
 Version: 0.6.2
 Libs: -L${libdir} -ldocopt
 Cflags: -I${includedir}