gcc+openblas on MacOS (intel)

[pcchen]

To build from source, using gcc and openblas on MacOS (intel).

• Install homebrew
• Use homebrew to install following packages

brew install gcc openblas lapack boost pybind11

Note The openblas package does not provide lapacke.h. You have to install lapack package, which provide lapacke.h.

Note Because homebrew installations of openblas/lapack are ot symbolic linked into /usr/local. One way to fix this is to

cd /usr/local/lib
ln -s ../Cellar/openblas/0.3.20/lib/libopenblas.dylib
cd /usr/local/include
ln -s ../../Cellar/lapack/3.10.0/include/lapack*

Then

mkdir -p build
cd build
cmake -DCMAKE_C_COMPILER=/usr/local/bin/gcc-11 -DCMAKE_CXX_COMPILER=/usr/local/bin/g++-11 ..