You might need to make -j 2 on appveyor to avoid time out. I think each AppVeyor instance has 2 real CPUs.

Appveyor succeeded, macOS on travis failed. It seem it miscompiled somehow: did not properly generate config_kernel.h. Is there a way to restart just that travis run?

If you are an owner you can log into Travis and you should see a restart icon on the job.

Somehow I am an owner, so I restarted it.

build succeeded. I will self-merge to move this forward. It should not delete the current artifacts at https://anaconda.org/multibuild-wheels-staging/openblas-libs/files, only add to them. Then the next step is to make a PR to numpy/numpy to update tools/openblas_support.py, updating OPENBLAS_V to the string inside the DLL and OPENBLAS_LONG to the name of the download file. In order to avoid the problem of updating all the hashes, the check for if sha256_returned != sha256_expected can be disabled. Much of this all can be tested with python tools/openblas_support.py --test