fedora-{26,27,...,34}-minimal: scipy build fails - openblas not found

[mkoeppe]

for example, fedora-34-minimal ​https://github.com/mkoeppe/sage/runs/3968544625?check_suite_focus=true

Note: CFLAGS, CXXFLAGS and SHAREDFLAGS are taken from distutils,
      so their current settings are ignored.
Installing scipy-1.6.3
Processing /sage/local/var/lib/sage/venv-python3.9.7/var/tmp/sage/build/scipy-1.6.3/src
    Preparing wheel metadata: started
    Running command /sage/local/var/lib/sage/venv-python3.9.7/bin/python3 /sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py prepare_metadata_for_build_wheel /tmp/tmpatw3swb6
    setup.py:462: UserWarning: Unrecognized setuptools command ('dist_info --egg-base /tmp/pip-modern-metadata-assu7gnc'), proceeding with generating Cython sources and expanding templates
      warnings.warn("Unrecognized setuptools command ('{}'), proceeding with "
    Running from SciPy source directory.
    lapack_opt_info:
[...]
    lapack_info:
      libraries openblas not found in ['/sage/local/var/lib/sage/venv-python3.9.7/lib', '/usr/local/lib64', '/usr/local/lib', '/usr/lib64', '/usr/lib', '/usr/lib/']
      NOT AVAILABLE

    /sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/numpy/distutils/system_info.py:1858: UserWarning:
        Lapack (http://www.netlib.org/lapack/) libraries not found.
        Directories to search for the libraries can be specified in the
        numpy/distutils/site.cfg file (section [lapack]) or by setting
        the LAPACK environment variable.
      return getattr(self, '_calc_info_{}'.format(name))()
    lapack_src_info:
      NOT AVAILABLE

    /sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/numpy/distutils/system_info.py:1858: UserWarning:
        Lapack (http://www.netlib.org/lapack/) sources not found.
        Directories to search for the sources can be specified in the
        numpy/distutils/site.cfg file (section [lapack_src]) or by setting
        the LAPACK_SRC environment variable.
      return getattr(self, '_calc_info_{}'.format(name))()
      NOT AVAILABLE

    Traceback (most recent call last):
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 349, in <module>
        main()
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 331, in main
        json_out['return_val'] = hook(**hook_input['kwargs'])
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 151, in prepare_metadata_for_build_wheel
        return hook(metadata_directory, config_settings)
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/setuptools/build_meta.py", line 166, in prepare_metadata_for_build_wheel
        self.run_setup()
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/setuptools/build_meta.py", line 258, in run_setup
        super(_BuildMetaLegacyBackend,
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/setuptools/build_meta.py", line 150, in run_setup
        exec(compile(code, __file__, 'exec'), locals())
      File "setup.py", line 598, in <module>
        setup_package()
      File "setup.py", line 594, in setup_package
        setup(**metadata)
      File "/sage/local/var/lib/sage/venv-python3.9.7/lib/python3.9/site-packages/numpy/distutils/core.py", line 135, in setup
        config = configuration()
      File "setup.py", line 500, in configuration
        raise NotFoundError(msg)
    numpy.distutils.system_info.NotFoundError: No BLAS/LAPACK libraries found.
    To build Scipy from sources, BLAS & LAPACK libraries need to be installed.
    See site.cfg.example in the Scipy source directory and
    https://docs.scipy.org/doc/scipy/reference/building/index.html for details.
    Preparing wheel metadata: finished with status 'error'

This is another regression caused by #32442 (./configure: Make --with-sage-venv=auto the default).

[mkoeppe]

To test the fix: tox -e docker-fedora-34-minimal -- scipy

[mkoeppe]

New commits:

​59d7245

build/pkgs/numpy/spkg-install.in: Make sure that site.cfg contains the directories of SAGE_LOCAL

[mkoeppe]

Replying to mkoeppe:

To test the fix: tox -e docker-fedora-34-minimal -- scipy

... tested successfully.

[mkoeppe]

Let's get this in please

[jhpalmieri]

It works for me. Looks good.

[mkoeppe]

Thank you!