gnu/packages/patches/vigra-python-compat.patch

   1 Fix build with Boost + Python 3.7.
   2
   3 Taken from upstream:
   4 https://github.com/ukoethe/vigra/commit/a6fa62663c6a6b752ed0707e95f643e25867a0f9
   5
   6 diff --git a/vigranumpy/src/core/vigranumpycore.cxx b/vigranumpy/src/core/vigranumpycore.cxx
   7 index ec38d3636..c81c6ae52 100644
   8 --- a/vigranumpy/src/core/vigranumpycore.cxx
   9 +++ b/vigranumpy/src/core/vigranumpycore.cxx
  10 @@ -61,7 +61,7 @@ UInt32 pychecksum(python::str const & s)
  11         return checksum(data, size);
  12  #else
  13         Py_ssize_t size = 0;
  14 -       char * data = PyUnicode_AsUTF8AndSize(s.ptr(), &size);
  15 +       const char * data = PyUnicode_AsUTF8AndSize(s.ptr(), &size);
  16         return checksum(data, size);
  17  #endif
  18  }