Bug#922253: hamradio-maintguide: FTBFS (Could not import extension sphinx.ext.pngmath)

[Santiago Vila <sanvila@debian.org>]

Package: src:hamradio-maintguide
Version: 0.4
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep
   dh_update_autotools_config -i
   dh_auto_configure -i
   debian/rules override_dh_auto_build
make[1]: Entering directory '/<<PKGBUILDDIR>>'
make html
make[2]: Entering directory '/<<PKGBUILDDIR>>'
sphinx-build -b html -d _build/doctrees   . _build/html
Running Sphinx v1.8.3

Extension error:
Could not import extension sphinx.ext.pngmath (exception: No module named 'sphinx.ext.pngmath')
make[2]: *** [Makefile:53: html] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
make[1]: *** [debian/rules:7: override_dh_auto_build] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:4: build-indep] Error 2
dpkg-buildpackage: error: debian/rules build-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

(The above is just how the build ends and not necessarily the most relevant part)

The build was made in my autobuilder with "dpkg-buildpackage -A"
and it also fails here:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/hamradio-maintguide.html

where you can get a full build log if you need it.

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the BTS web page for this package.

Thanks.