Prepare for upstream refactor in mkl-service

Upstream moved the setup from setup.py to pyproject.toml. This breaks
building of any current release (<= v2.4.2), but should work on main and
any future releases.

Author: urob

.github/workflows/wheels.yml

@@ -132,15 +132,18 @@ jobs:
               >>"${{ github.workspace }}/patches/LICENSE_MKL.txt"
 
           # Add .so -> .so.2 symlinks to fix linking for mkl-service.
-          cd "${{ env.MKL_DIR }}"/lib
-          for i in $( ls libmkl*.so.2 ); do ln -s $i ${i%.*}; done
+          if [[ "${{ runner.os }}" == "Linux" ]]; then
+            cd "${{ env.MKL_DIR }}"/lib
+            for i in $( ls libmkl*.so.2 ); do ln -s $i ${i%.*}; done
+          fi
 
       - name: Add MKL to runtime dependencies
         working-directory: ${{ env.SRC_DIR }}
         run: |
           # Pin runtime library to the exact version used for compiling.
           if [[ "${{ inputs.name }}" == "mkl-service" ]]; then
-            sed -i "s/install_requires=\[\]/install_requires=['mkl==${MKL_VERSION}']/" setup.py
+            # MKLROOT must be set, even with --no-sync.
+            MKLROOT= uv add --no-sync mkl=="${MKL_VERSION}"
           else
             uv add --no-sync mkl=="${MKL_VERSION}" mkl-service
           fi
@@ -255,7 +258,7 @@ jobs:
 
             mkl-service)
               uv pip install pytest
-              pytest -vv --pyargs mkl
+              pytest -s -v --pyargs mkl
               ;;
           esac
 

patches/mkl-service/pyproject.patch

@@ -0,0 +1,13 @@
+diff --git a/pyproject.toml b/pyproject.toml
+index 5ec86b8..759b6e9 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -68,7 +68,7 @@ Homepage = "http://github.com/IntelPython/mkl-service"
+ 
+ [tool.setuptools]
+ include-package-data = true
+-packages = ["mkl"]
++packages = ["mkl", "mkl.tests"]
+ 
+ [tool.setuptools.dynamic]
+ version = {attr = "mkl._version.__version__"}