BLD: use meson's NumPy resolution mechanism for building

Instead of querying the include folder's location from NumPy during
building, use Meson's built-in dependency resolution for NumPy.

With this change during build-time Meson first tries to query the
dependency details using numpy-config (which, in turn essentially
uses the same method as the original code this commit replaces),
and in case that fails for some reason, it tries to discover
NumPy resources using pkg-config - which, beside being a good
fail-over mechanism, has the added benefit of somewhat simpler
cross-compiling, as querying the include folder location from
NumPy module is only usable for cross-compiling only in some
corner cases, while pkg-config is a bit more universal.

Signed-off-by: Gyorgy Sarvari <[email protected]>

Author: OldManYellsAtCloud

.github/actions/build_pandas/action.yml

@@ -25,10 +25,8 @@ runs:
     - name: Build Pandas
       run: |
         if [[ ${{ inputs.editable }} == "true" ]]; then
-          pip install -e . --no-build-isolation -v --no-deps \
-            -Csetup-args="--werror"
+          pip install -e . --no-build-isolation -v --no-deps
         else
-          pip install . --no-build-isolation -v --no-deps \
-            -Csetup-args="--werror"
+          pip install . --no-build-isolation -v --no-deps
         fi
       shell: bash -el {0}

.github/workflows/code-checks.yml

@@ -13,6 +13,7 @@ on:
 env:
   ENV_FILE: environment.yml
   PANDAS_CI: 1
+  PKG_CONFIG_PATH: "${{env.PYTHONHOME}}/numpy/_core/lib/pkgconfig"
 
 permissions:
   contents: read

.github/workflows/docbuild-and-upload.yml

@@ -40,11 +40,17 @@ jobs:
       with:
         fetch-depth: 0
 
+    - name: Determine NumPy pkg-config location
+      run: |
+        echo "PKG_CONFIG_PATH=$(python -c 'import site; print(site.getsitepackages()[0])')/numpy/_core/lib/pkgconfig" >> $GITHUB_ENV
+
     - name: Set up Conda
       uses: ./.github/actions/setup-conda
 
     - name: Build Pandas
       uses: ./.github/actions/build_pandas
+      env:
+        CIBW_ENVIRONMENT: "PKG_CONFIG_PATH=$(python -c 'import site; print(site.getsitepackages()[0])')/numpy/_core/lib/pkgconfig"
 
     - name: Extra installs
       # https://pytest-qt.readthedocs.io/en/latest/troubleshooting.html#github-actions-azure-pipelines-travis-ci-and-gitlab-ci-cd

.github/workflows/unit-tests.yml

@@ -20,6 +20,9 @@ defaults:
   run:
     shell: bash -el {0}
 
+env:
+  PKG_CONFIG_PATH: "${{env.PYTHONHOME}}/numpy/_core/lib/pkgconfig"
+
 jobs:
   ubuntu:
     runs-on: ${{ matrix.platform }}
@@ -244,10 +247,10 @@ jobs:
         run: |
           /opt/python/cp313-cp313/bin/python -m venv ~/virtualenvs/pandas-dev
           . ~/virtualenvs/pandas-dev/bin/activate
-          python -m pip install --no-cache-dir -U pip wheel setuptools meson[ninja]==1.2.1 meson-python==0.13.1
+          python -m pip install --no-cache-dir -U pip wheel setuptools meson[ninja]==1.4.0 meson-python==0.13.1
           python -m pip install numpy -Csetup-args="-Dallow-noblas=true"
           python -m pip install --no-cache-dir versioneer[toml] cython python-dateutil pytest>=7.3.2 pytest-xdist>=3.4.0 hypothesis>=6.84.0
-          python -m pip install --no-cache-dir --no-build-isolation -e . -Csetup-args="--werror"
+          python -m pip install --no-cache-dir --no-build-isolation -e .
           python -m pip list --no-cache-dir
           PANDAS_CI=1 python -m pytest -m 'not slow and not network and not clipboard and not single_cpu' pandas --junitxml=test-data.xml
     concurrency:
@@ -282,9 +285,9 @@ jobs:
         run: |
           /opt/python/cp313-cp313/bin/python -m venv ~/virtualenvs/pandas-dev
           . ~/virtualenvs/pandas-dev/bin/activate
-          python -m pip install --no-cache-dir -U pip wheel setuptools meson-python==0.13.1 meson[ninja]==1.2.1
+          python -m pip install --no-cache-dir -U pip wheel setuptools meson-python==0.13.1 meson[ninja]==1.4.0
           python -m pip install --no-cache-dir versioneer[toml] cython numpy python-dateutil pytest>=7.3.2 pytest-xdist>=3.4.0 hypothesis>=6.84.0
-          python -m pip install --no-cache-dir --no-build-isolation -e . -Csetup-args="--werror"
+          python -m pip install --no-cache-dir --no-build-isolation -e .
           python -m pip list --no-cache-dir
 
       - name: Run Tests
@@ -353,10 +356,10 @@ jobs:
       - name: Build Environment
         run: |
           python --version
-          python -m pip install --upgrade pip setuptools wheel meson[ninja]==1.2.1 meson-python==0.13.1
+          python -m pip install --upgrade pip setuptools wheel meson[ninja]==1.4.0 meson-python==0.13.1
           python -m pip install --pre --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple numpy
           python -m pip install versioneer[toml] python-dateutil tzdata cython hypothesis>=6.84.0 pytest>=7.3.2 pytest-xdist>=3.4.0 pytest-cov
-          python -m pip install -ve . --no-build-isolation --no-index --no-deps -Csetup-args="--werror"
+          python -m pip install -ve . --no-build-isolation --no-index --no-deps
           python -m pip list
 
       - name: Run Tests
@@ -395,10 +398,10 @@ jobs:
       - name: Build Environment
         run: |
           python --version
-          python -m pip install --upgrade pip setuptools wheel numpy meson[ninja]==1.2.1 meson-python==0.13.1
+          python -m pip install --upgrade pip setuptools wheel numpy meson[ninja]==1.4.0 meson-python==0.13.1
           python -m pip install --pre --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple cython
           python -m pip install versioneer[toml] python-dateutil pytz tzdata hypothesis>=6.84.0 pytest>=7.3.2 pytest-xdist>=3.4.0 pytest-cov
-          python -m pip install -ve . --no-build-isolation --no-index --no-deps -Csetup-args="--werror"
+          python -m pip install -ve . --no-build-isolation --no-index --no-deps
           python -m pip list
 
       - name: Run Tests

.github/workflows/wheels.yml

@@ -57,6 +57,10 @@ jobs:
         with:
           python-version: '3.11'
 
+      - name: Determine NumPy pkg-config location
+        run: |
+          echo "PKG_CONFIG_PATH=$(python -c 'import site; print(site.getsitepackages()[0])')/numpy/_core/lib/pkgconfig" >> $GITHUB_ENV
+
       - name: Build sdist
         run: |
           python -m pip install build
@@ -140,6 +144,10 @@ jobs:
         shell: bash -el {0}
         run: echo "sdist_name=$(ls ./dist)" >> "$GITHUB_ENV"
 
+      - name: Determine NumPy pkg-config location
+        run: |
+          echo "PKG_CONFIG_PATH=$(python -c 'import site; print(site.getsitepackages()[0])')/numpy/_core/lib/pkgconfig" >> $GITHUB_ENV
+
       # Python version used to build sdist doesn't matter
       # wheel will be built from sdist with the correct version
       - name: Unzip sdist (macOS)

ci/deps/actions-310-minimum_versions.yaml

@@ -9,7 +9,7 @@ dependencies:
   # build dependencies
   - versioneer
   - cython>=0.29.33
-  - meson=1.2.1
+  - meson=1.4.0
   - meson-python=0.13.1
 
   # test dependencies

ci/deps/actions-310.yaml

@@ -7,7 +7,7 @@ dependencies:
   # build dependencies
   - versioneer
   - cython>=0.29.33
-  - meson=1.2.1
+  - meson=1.4.0
   - meson-python=0.13.1
 
   # test dependencies

ci/deps/actions-311-downstream_compat.yaml

@@ -8,7 +8,7 @@ dependencies:
   # build dependencies
   - versioneer
   - cython>=0.29.33
-  - meson=1.2.1
+  - meson=1.4.0
   - meson-python=0.13.1
 
   # test dependencies

ci/deps/actions-311-numpydev.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - meson=1.2.1
+  - meson=1.4.0
   - meson-python=0.13.1
   - cython>=0.29.33
 

ci/deps/actions-311-pyarrownightly.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # build dependencies
   - versioneer
-  - meson=1.2.1
+  - meson=1.4.0
   - cython>=0.29.33
   - meson-python=0.13.1