[pypy-issue] Issue #2859: pypy3 fails to install numpy (pypy/pypy)

[Ronald Lencevicius]

New issue 2859: pypy3 fails to install numpy
https://bitbucket.org/pypy/pypy/issues/2859/pypy3-fails-to-install-numpy

Ronald Lencevicius:

I know this has been mentioned before but it's been months and we still cannot use pip to install numpy.

```
#!bash
...
...
File "/tmp/pip-install-0cch5fqt/numpy/numpy/distutils/command/build_src.py", line 294, in build_library_sources
        sources = self.generate_sources(sources, (lib_name, build_info))
      File "/tmp/pip-install-0cch5fqt/numpy/numpy/distutils/command/build_src.py", line 377, in generate_sources
        source = func(extension, build_dir)
      File "numpy/core/setup.py", line 675, in get_mathlib_info
        raise RuntimeError("Broken toolchain: cannot link a simple C program")
    RuntimeError: Broken toolchain: cannot link a simple C program

    ----------------------------------------
Command "/usr/local/bin/pypy3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-0cch5fqt/numpy/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-enorw6my/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-0cch5fqt/numpy/

```

I'm using latest version of pip on WSL Ubuntu 18.04.  I've searched everywhere for solutions but at this point it just seems that pypy doesn't support numpy.