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Tests fail to find Python.h #272
Description
First it failed like this:
In file included from /usr/local/include/pybind11/pytypes.h:12:
/usr/local/include/pybind11/detail/common.h:186:10: fatal error: 'Python.h' file not found
#include <Python.h>
^~~~~~~~~~
then it failed like this:
In file included from /usr/local/include/xtensor-python/pytensor.hpp:22:
/usr/local/include/xtensor-python/pycontainer.hpp:30:10: fatal error: 'numpy/arrayobject.h' file not found
#include "numpy/arrayobject.h"
^~~~~~~~~~~~~~~~~~~~~
I had to add these arguments to fix these failures:
CXXFLAGS=-I${PYTHON_INCLUDEDIR} -I${PYTHON_SITELIBDIR}/numpy/core/include
It should find relevant headers by itself.
Activity
SylvainCorlay commentedon Nov 27, 2021
When things are not found, the right definition to add is PYTHON_EXECUTABLE. We have found that more aggressive search strategies often ended up finding other python installs and linking with the wrong version.
yurivict commentedon Nov 27, 2021
cmake finds the python executable fine:
It can't find the headers.
Based on docs the same command that finds the python executable, FindPython, outputs the headers' location.
SylvainCorlay commentedon Nov 27, 2021
Thanks. Is this happening on a distribution a patched cpython distribution? We rely on the same approach as pybind11 for this ...
yurivict commentedon Nov 27, 2021
This is happening in the FreeBSD port.
SylvainCorlay commentedon Nov 27, 2021
Okay. I don't know if the freebsd port patches cpython. We had some serious headaches in the past with Debian patching it to split between dist-packages and site-packages.
In any case we should address the freebsd case.
tdegeus commentedon Mar 2, 2023
Not sure if this is the issue : https://conda-forge.org/docs/maintainer/knowledge_base.html ?