try finufft method of installing openmp

.github/workflows/wheels.yml

@@ -23,6 +23,9 @@ jobs:
       - name: Set OpenMP env for macos-14
         if: matrix.os == 'macos-14'
         run: |
+          pkg=$(brew fetch --force --bottle-tag=arm64_ventura libomp | grep 'Downloaded to' | cut -d' ' -f3)
+          brew install $pkg
+          echo $(brew --prefix libomp)
           echo "LDFLAGS=$LDFLAGS -L/opt/homebrew/opt/libomp/lib" >> $GITHUB_ENV
           echo "CXXFLAGS=$CXXFLAGS -I/opt/homebrew/opt/libomp/include" >> $GITHUB_ENV
 
@@ -34,6 +37,10 @@ jobs:
           name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
           path: ./wheelhouse/*.whl
 
+      - name: Setup tmate session
+        if: ${{ failure() }}
+        uses: mxschmitt/action-tmate@v3
+
   make_sdist:
     name: Make SDist
     runs-on: ubuntu-latest

pyproject.toml

@@ -65,7 +65,7 @@ repair-wheel-command = [
 ]
 
 [tool.cibuildwheel.macos]
-before-all = "brew install libomp"
+# before-all = "brew install libomp"
 repair-wheel-command = [
   'delocate-wheel --require-archs {delocate_archs} -w {dest_dir} -v {wheel}',
   'case "$(basename {wheel})" in *"-abi3-"*) pipx run abi3audit --strict --report {wheel};; esac',

src/nifty_ls/finufft.py

@@ -2,7 +2,7 @@
 
 from timeit import default_timer as timer
 
-# import finufft
+import finufft
 import numpy as np
 
 from . import cpu_helpers