Bug#914347: vtk7: FTBFS against python 3.7.1 (now the default for python3)

[Gilles Filippini]

Source: vtk7
Version: 7.1.1+dfsg1-9
Severity: serious
Justification: FTBFS

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Hi,

Python 3.7.1 is now the default for python3 [1], and vtk7 FTBFS [2] against this version:

/<<BUILDDIR>>/vtk7-7.1.1+dfsg1/Wrapping/PythonCore/vtkPythonArgs.cxx: In instantiation of 'bool vtkPythonGetStringValue(PyObject*, T*&, const char*) [with T = char; PyObject = _object]':
/<<BUILDDIR>>/vtk7-7.1.1+dfsg1/Wrapping/PythonCore/vtkPythonArgs.cxx:287:66:   required from here
/<<BUILDDIR>>/vtk7-7.1.1+dfsg1/Wrapping/PythonCore/vtkPythonArgs.cxx:105:25: error: invalid conversion from 'const char*' to 'char*' [-fpermissive]
     a = PyUnicode_AsUTF8(o);
         ~~~~~~~~~~~~~~~~^~~

[1] https://tracker.debian.org/news/1004786/accepted-python3-defaults-371-2-source-into-unstable/
[2] https://buildd.debian.org/status/fetch.php?pkg=vtk7&arch=amd64&ver=7.1.1%2Bdfsg1-9%2Bb1&stamp=1542847447&raw=0 

Thanks,

_g.

- -- System Information:
Debian Release: buster/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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