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Build systems can't find pkgconfig even though I have set them to install it

Asked by Ian Leath

I have been trying to release a PPA of the program SuperSlicer, but every time I try to build it, the build system responds with an error about not finding PkgConfig. I have tried setting the "pkg-config" package to install both as a build requirement and as a program requirement but nothing seems to work. What do I need to do?

My latest build log: https://launchpadlibrarian.net/555499613/buildlog_ubuntu-hirsute-amd64.superslicer_2.3.56.8-patch2_BUILDING.txt.gz

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Colin Watson
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Best Colin Watson (cjwatson) said : 		#1

Your most recent version in which you correctly added pkg-config to Build-Depends has a different failure:

https://launchpadlibrarian.net/555510583/buildlog_ubuntu-hirsute-amd64.superslicer_2.3.56.8-patch3_BUILDING.txt.gz

-- Could NOT find DBUS (missing: DBUS_INCLUDE_DIRS DBUS_LIBRARIES)
CMake Error at /usr/share/cmake-3.18/Modules/FindPackageHandleStandardArgs.cmake:165 (message):
  Could NOT find Boost (missing: Boost_INCLUDE_DIR system filesystem thread
  log locale regex chrono atomic date_time) (Required is at least version
  "1.64.0")
Call Stack (most recent call first):
  /usr/share/cmake-3.18/Modules/FindPackageHandleStandardArgs.cmake:458 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/cmake-3.18/Modules/FindBoost.cmake:2177 (find_package_handle_standard_args)
  CMakeLists.txt:291 (find_package)

This probably indicates missing build-dependencies on at least libdbus-1-dev and libboost-all-dev. It seems likely that many of the -dev packages you're currently listing in Depends should be in Build-Depends instead. You should put ${shlibs:Depends} in your Depends line so that automatically-detected library dependencies are picked up, and you should almost certainly replace your hand-written debian/rules file with something based on modern debhelper with overrides since what you have at the moment has many deficiencies (in particular it doesn't call dpkg-shlibdeps so can't take advantage of ${shlibs:Depends} for generating run-time library dependencies).

I suggest setting up sbuild (https://wiki.ubuntu.com/SimpleSbuild) or pbuilder locally so that you can run test builds in clean environments. This will be much quicker than iterating via Launchpad.

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Ian Leath (meganium97) said (last edit ): 		#2

Ah, thank you for the advice. This would've helped a lot in the creation process, due to the fact that the article I used (http://schneegans.github.io/lessons/2011/11/02/ppa-launchpad-cmake) is almost 10 years old at this point.

Also for the newest version build, I didn't get an email for that so I didn't know, sorry!

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Colin Watson (cjwatson) said : 		#3

Yes, unfortunately there's a lot of fairly dated advice floating around. "man dh" may be helpful for some examples of modernized debian/rules files.

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Ian Leath (meganium97) said : 		#4

Thank you. After doing everything I got it to work. There are more errors but they are completely unrelated.

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Ian Leath (meganium97) said : 		#5

Thanks Colin Watson, that solved my question.