Bug#856218: FTBFS during documentation build

[Anton Gladky]

Package: yade
Version: 2017.01a-2
Severity: serious
Tags: upstream

Yade fails to build from scratch during documentation generation [1].
Relevant lines in the build log:

==============
(/usr/share/texlive/texmf-dist/tex/latex/needspace/needspace.sty)
  ** (sphinx) defining (legacy) text style macros without \sphinx prefix
  ** if clashes with packages, set latex_keep_old_macro_names=False in conf.py

  ! LaTeX Error: Command \strong already defined.
  Or name \end... illegal, see p.192 of the manual.

  See the LaTeX manual or LaTeX Companion for explanation.
  Type  H <return>  for immediate help.
  ...                                              
                                                    
  l.912 }

  ? 
  ! Emergency stop.
    ...                                              
                                                      
    l.912 }
                          
==============