Bug#778917: texlive-latex-extra: missing dependency - textgreek.sty requires lgrenc.def (texlive-lang-greek)

[carandraug <carandraug+dev@gmail.com>]

Package: texlive-latex-extra
Version: 2014.20141024-1
Severity: normal

Dear Maintainer,

The Tex textgreek package is part of the texlive-latex-extra debian package.
This Tex package depends on lgrenc.def which in Debian, is part of the Debian
texlive-lang-greek package.  This package should then be listed as a
dependency for texlive-latex-extra but it is not.  A simple example:

\documentclass{article}
\usepackage{textgreek}
\begin{document}
Hello \textalpha world!
\end{document}

Building this sample document will cause the error (trimeed to show the
relevant issue):

    This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2015/dev/Debian) (preloaded format=pdflatex)
    .
    .
    .
    (/usr/share/texlive/texmf-dist/tex/latex/textgreek/textgreek.sty
    
    ! Package textgreek Error: Cannot find the file lgrenc.def.
    
    See the textgreek package documentation for explanation.
    Type  H <return>  for immediate help.
     ...                                              
                                                  
    l.39 .... Maybe it comes with the babel package.}}

unless the texlive-lang-greek package is installed in which case it finishes
with no issues.

-- System Information:
Debian Release: 8.0
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages texlive-latex-extra depends on:
ii  dpkg                       1.17.23
ii  preview-latex-style        11.87-3+deb8u1
ii  tex-common                 5.03
ii  texlive-base               2014.20141024-2
ii  texlive-binaries           2014.20140926.35254-6
ii  texlive-latex-recommended  2014.20141024-2
ii  texlive-pictures           2014.20141024-2

Versions of packages texlive-latex-extra recommends:
ii  texlive-fonts-recommended  2014.20141024-2
ii  texlive-latex-extra-doc    2014.20141024-1

Versions of packages texlive-latex-extra suggests:
ii  libfile-which-perl  1.09-1
ii  python-pygments     2.0.1+dfsg-1

Versions of packages tex-common depends on:
ii  debconf [debconf-2.0]  1.5.55
ii  dpkg                   1.17.23
ii  ucf                    3.0030

Versions of packages tex-common suggests:
ii  debhelper  9.20141022

Versions of packages texlive-latex-extra is related to:
ii  tex-common        5.03
ii  texlive-binaries  2014.20140926.35254-6

-- debconf information:
  tex-common/check_texmf_missing:
  tex-common/check_texmf_wrong: