Repair Windows wheels (#673)

* repair windows wheel

* declare cuda as namespace package

Author: leofang

.github/workflows/build-wheel.yml

@@ -76,6 +76,8 @@ jobs:
           CIBW_BUILD: ${{ env.CIBW_BUILD }}
           CIBW_ARCHS_LINUX: "native"
           CIBW_BUILD_VERBOSITY: 1
+          CIBW_BEFORE_BUILD_WINDOWS: "pip install delvewheel"
+          CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: "delvewheel repair --namespace-pkg cuda -w {dest_dir} {wheel}"
         with:
           package-dir: ./cuda_core/
           output-dir: ${{ env.CUDA_CORE_ARTIFACTS_DIR }}
@@ -124,6 +126,8 @@ jobs:
             CUDA_HOME="$(cygpath -w ${{ env.CUDA_PATH }})"
             LIB="${CUDA_HOME}\\lib\\x64;${LIB}"
             CUDA_BINDINGS_PARALLEL_LEVEL=${{ env.CUDA_BINDINGS_PARALLEL_LEVEL }}
+          CIBW_BEFORE_BUILD_WINDOWS: "pip install delvewheel"
+          CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: "delvewheel repair --namespace-pkg cuda -w {dest_dir} {wheel}"
         with:
           package-dir: ./cuda_bindings/
           output-dir: ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}