Uses pthreads variant

Author: JohanMabille

.github/workflows/osx.yml

@@ -36,7 +36,7 @@ jobs:
         cache-downloads: true
 
     - name: Install OpenBLAS
-      run: micromamba install openblas==0.3 blas-devel
+      run: micromamba install openblas=0.3=pthreads blas-devel
 
     - name: Configure using CMake
       run: cmake -Bbuild -DDOWNLOAD_GTEST=ON -DCMAKE_PREFIX_PATH=$CONDA_PREFIX -DCMAKE_SYSTEM_IGNORE_PATH=/usr/lib