[Python-modules-team] Bug#806230: python-igraph: FTBFS: Cannot find C igraph using pkg-config.

[Aaron M. Ucko]

Source: python-igraph
Version: 0.7.1.post6-1
Severity: serious
Justification: fails to build from source

Builds of python-igraph in minimal environments have been failing:

  running build_ext
  Cannot find the C core of igraph on this system using pkg-config.
  We will now try to download and compile the C core from scratch.
  Version number of the C core: 0.7.1.post6
  We will also try: 0.7.1
  
  Version 0.7.1.post6 of the C core of igraph is not found among the nightly builds.
  Use the --c-core-version switch to try a different version.
  
  Could not download and compile the C core of igraph.
  
  E: pybuild pybuild:274: build: plugin distutils failed with: exit code=1: /usr/bin/python setup.py build
  dh_auto_build: pybuild --build -i python{version} -p 2.7 --dir . returned exit code 13
  debian/rules:6: recipe for target 'build-arch' failed
  make: *** [build-arch] Error 25

Please declare a build dependency on pkg-config.

Thanks!