SPHINXBUILD should be set to sphinx-build-3 (make docs fails)

[maitra]

While installing, I get, on Fedora 30:

from Makefile in alot-0.8.1/docs sphinx-build -b man -d build/doctrees source build/man make: sphinx-build: Command not found

Perhaps

SPHINXBUILD = sphinx-build

should be set to

SPHINXBUILD = sphinx-build-3

in python3?

[lucc]

You can set these variables from the command line as a workaround. Do make SPHINXBUILD=sphinx-build-3. Does it work then?

What is the executable name in different distributions? Is it always sphinx-build-3? On Arch Linux /usr/bin/sphinx-build belongs to the python-sphinx package for python 3.

[pazz]

Debian has python-sphinx (py2) and python3-sphinx (py3); and can update-alternatives to chose between them (picks the target of the symlink sphinx-build. I only have the py3 version installed and do not need to adjust the env var as above to compile the docs (just the PYTHON var).