Repair Linux wheel build

.github/workflows/dist.yml

@@ -79,6 +79,39 @@ jobs:
           python-version: "3.9 - 3.13"
           update-environment: false
 
+      - name: Retrieve configure tarball cache
+        id: cache-configure
+        uses: actions/cache/restore@v4
+        with:
+          path: |
+            build/pkgs/configure
+            upstream/configure*
+          key: >-
+            configure-build=${{
+              hashFiles('build',
+                        'configure.ac',
+                        'm4')
+            }}
+
+      - name: Bootstrap
+        if: steps.cache-configure.outputs.cache-hit != 'true'
+        # Patch python3 spkg-configure to allow Python 3.8.0 during the CIBW_BEFORE_ALL phase
+        run: |
+          export PATH=$(pwd)/build/bin:$PATH
+          eval $(sage-print-system-package-command auto --sudo --yes update)
+          eval $(sage-print-system-package-command auto --sudo --yes --no-install-recommends --spkg install _bootstrap bzip2 xz liblzma)
+          sed -i.bak '/m4_pushdef.*MIN_VERSION/s/3[0-9.]*/3.8.0/' build/pkgs/python3/spkg-configure.m4
+          ./bootstrap -s
+
+      - name: Save configure tarball cache
+        if: steps.cache-configure.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: |
+            build/pkgs/configure
+            upstream/configure*
+          key: ${{ steps.cache-configure.outputs.cache-primary-key }}
+
       - name: Build platform wheels
         # We build the wheel from the sdist.
         # But we must run cibuildwheel with the unpacked source directory, not a tarball,
@@ -88,22 +121,26 @@ jobs:
         # https://cibuildwheel.readthedocs.io/en/stable/options/#before-all
         run: |
           "${{ steps.python.outputs.python-path }}" -m pip install pipx
+          if [ ! -x ./configure ]; then ./bootstrap -D; fi
+          touch configure
           export PATH=build/bin:$PATH
-          export CIBW_BEFORE_ALL="( $(sage-print-system-package-command debian --yes --no-install-recommends install $(sage-get-system-packages debian $SPKGS)) || $(sage-print-system-package-command fedora --yes --no-install-recommends install $(sage-get-system-packages fedora $SPKGS | sed s/pkg-config/pkgconfig/)) || ( $(sage-print-system-package-command homebrew --yes --no-install-recommends install $(sage-get-system-packages homebrew $SPKGS)) || $(sage-print-system-package-command alpine --yes --no-install-recommends install $(sage-get-system-packages alpine $SPKGS)) || echo error ignored) ) && ./bootstrap && ./configure --enable-build-as-root --enable-fat-binary && MAKE=\"make -j6\" make V=0 $TARGETS_PRE"
+          export CIBW_BEFORE_ALL="( $(sage-print-system-package-command debian --yes --no-install-recommends install $(sage-get-system-packages debian $SPKGS)) || $(sage-print-system-package-command fedora --yes --no-install-recommends install $(sage-get-system-packages fedora $SPKGS | sed s/pkg-config/pkgconfig/)) || ( $(sage-print-system-package-command homebrew --yes --no-install-recommends install $(sage-get-system-packages homebrew $SPKGS)) || $(sage-print-system-package-command alpine --yes --no-install-recommends install $(sage-get-system-packages alpine $SPKGS)) || echo error ignored) ) && ./configure --enable-build-as-root --enable-fat-binary --disable-python-distutils-check && MAKE=\"make -j6\" make V=0 $TARGETS_PRE"
           mkdir -p unpacked
           for pkg in pplitepy; do
               (cd unpacked && tar xfz - ) < dist/$pkg*.tar.gz
               "${{ steps.python.outputs.python-path }}" -m pipx run cibuildwheel==2.21.3 unpacked/$pkg*
           done
 
       - uses: actions/upload-artifact@v4
+        if:   always()
         with:
           name: ${{ matrix.os }}-${{ matrix.arch }}-wheels
           path: ./wheelhouse/*.whl
-  
+
   pypi-publish:
     needs: build_wheels
     name: Upload release to PyPI
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     runs-on: ubuntu-latest
     environment:
       name: pypi
@@ -129,4 +166,3 @@ jobs:
         ## password: ${{ secrets.SAGEMATH_PYPI_API_TOKEN }}
         skip_existing: true
         verbose: true
-      if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')