New issue 2677: PyBuffer_ToContiguous: undeclared identifier when building
`dlib`
https://bitbucket.org/pypy/pypy/issues/2677/pybuffer_tocontiguous-undeclared
Jacek Szpot:
Hey guys!
> **TL;DR:** `undeclared identifier 'PyBuffer_ToContiguous'` when trying to
> build `dlib`
I bumped into this when trying to install `dlib` (`pip3 install dlib`):
```
In file included from
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/tools/python/src/matrix.cpp:4:
In file included from
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python.h:9:
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python/numpy.h:109:17:
error: use of undeclared identifier 'PyBuffer_ToContiguous'
if (PyBuffer_ToContiguous(&contig_buf[0], &pybuf, pybuf.len,
'C'))
^
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python/numpy_image.h:22:9:
note: in instantiation of function template specialization
'get_numpy_ndarray_parts<unsigned char, 2>' requested here
get_numpy_ndarray_parts(img, _data, _contig_buf, shape);
^
In file included from
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/tools/python/src/matrix.cpp:4:
In file included from
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python.h:9:
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python/numpy.h:109:17:
error: use of undeclared identifier 'PyBuffer_ToContiguous'
if (PyBuffer_ToContiguous(&contig_buf[0], &pybuf, pybuf.len,
'C'))
^
/private/var/folders/xq/btzncyq941bfxkwd_xb_sjh80000gn/T/pip-build-rxh9qq8v/dlib/dlib/../dlib/python/numpy_image.h:76:9:
note: in instantiation of function template specialization
'get_numpy_ndarray_parts<dlib::rgb_pixel, 3>' requested here
get_numpy_ndarray_parts(img, _data, _contig_buf, shape);
^
2 errors generated.
make[2]: *** [CMakeFiles/dlib_.dir/src/matrix.cpp.o] Error 1
make[1]: *** [CMakeFiles/dlib_.dir/all] Error 2
make: *** [all] Error 2
error: cmake build failed!
```
More details:
```
Python 3.5.3 (d72f9800a42b46a8056951b1da2426d2c2d8d502, Oct 07 2017, 08:21:16)
[PyPy 5.9.0-beta0 with GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)]
on darwin
```
The CPython interpreter has this symbol defined somewhere in `abstract.h` - I
see that for my `pypy3` installation (and inside a virtualenv), the
`include/abstract.h` is way shorter and only contains like two symbols.
Is this simply something that's not yet implemented, or am I miss something?
Let me know if you need more info.
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