qdldl: add build-qdldl.yml for riscv64 wheels

.github/workflows/build-qdldl.yml

@@ -0,0 +1,95 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/osqp/qdldl-python/blob/v0.1.9.post1/.github/workflows/build.yml
+name: Build qdldl wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'qdldl version to build (git tag without the leading v, e.g. 0.1.9.post1)'
+        required: true
+        default: '0.1.9.post1'
+  pull_request:
+    paths:
+      - '.github/workflows/build-qdldl.yml'
+      - 'patches/qdldl/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '0.1.9.post1' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  # `inputs.version` is empty on pull_request events; default to 0.1.9.post1 there.
+  QDLDL_VERSION: ${{ inputs.version || '0.1.9.post1' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build qdldl ${{ inputs.version || '0.1.9.post1' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    steps:
+      - name: Checkout qdldl-python v${{ env.QDLDL_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: osqp/qdldl-python
+          ref: v${{ env.QDLDL_VERSION }}
+          submodules: true
+          persist-credentials: false
+
+      - name: Checkout python-wheels
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          path: python-wheels
+          persist-credentials: false
+
+      - name: Patch qdldl-python source
+        run: git apply python-wheels/patches/qdldl/${{ env.QDLDL_VERSION }}/*.patch
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # numpy is a build-time requirement too, and has no riscv64 wheel on
+          # public PyPI; scipy is only needed at test time. Both are on our registry.
+          CIBW_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            CMAKE_GENERATOR="Unix Makefiles"
+          CIBW_TEST_ENVIRONMENT: PIP_ONLY_BINARY=numpy,scipy
+          CIBW_TEST_REQUIRES: pytest
+          CIBW_TEST_COMMAND: >-
+            python -c "import importlib.metadata as m; f = sorted(str(p).split('licenses/', 1)[1] for p in m.files('qdldl') if '.dist-info/licenses/' in str(p)); assert f == ['LICENSE', 'LICENSE.amd'], f" &&
+            python -m pytest {project}/tests
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: qdldl-${{ env.QDLDL_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish qdldl ${{ inputs.version || '0.1.9.post1' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: qdldl-${{ inputs.version || '0.1.9.post1' }}-*-manylinux_riscv64

patches/qdldl/0.1.9.post1/0001-Package-the-vendored-AMD-ordering-library-s-licence.patch

@@ -0,0 +1,73 @@
+From d8c9182a50051c90bf3797f02d7369669e6173cf Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Sun, 6 Sep 2026 16:14:02 +0200
+Subject: [PATCH] Package the vendored AMD ordering library's licence
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The extension statically links libqdldlamd.a, which c/CMakeLists.txt builds
+from c/amd (AMD's approximate-minimum-degree ordering routine, vendored from
+SuiteSparse under BSD-3-Clause) together with the qdldl object library. The
+published wheel nevertheless carries only qdldl-python's own Apache-2.0
+LICENSE in dist-info/licenses/: BSD-3-Clause requires its own copyright
+notice and disclaimer to travel with binary redistributions of the code it
+covers, which a wheel that omits c/amd/LICENSE does not satisfy.
+
+setuptools auto-discovers license files at the project root matching
+LICEN[CS]E*, so copying c/amd/LICENSE to LICENSE.amd is enough to get it
+into dist-info/licenses/ alongside LICENSE — no pyproject.toml/setup.cfg
+change needed (verified locally: a wheel built from this tree carries both
+licenses/LICENSE and licenses/LICENSE.amd).
+
+Upstream-Status: To upstream [not yet submitted; the same gap exists in every qdldl wheel on PyPI, so it needs a maintainer discussion rather than a drive-by PR]
+---
+ LICENSE.amd | 36 ++++++++++++++++++++++++++++++++++++
+ 1 file changed, 36 insertions(+)
+ create mode 100644 LICENSE.amd
+
+diff --git a/LICENSE.amd b/LICENSE.amd
+new file mode 100644
+index 0000000..36de6d8
+--- /dev/null
++++ b/LICENSE.amd
+@@ -0,0 +1,36 @@
++AMD, Copyright (c), 1996-2015, Timothy A. Davis,
++Patrick R. Amestoy, and Iain S. Duff.  All Rights Reserved.
++
++Availability:
++
++    http://www.suitesparse.com
++
++-------------------------------------------------------------------------------
++AMD License: BSD 3-clause:
++-------------------------------------------------------------------------------
++
++    Redistribution and use in source and binary forms, with or without
++    modification, are permitted provided that the following conditions are met:
++        * Redistributions of source code must retain the above copyright
++          notice, this list of conditions and the following disclaimer.
++        * Redistributions in binary form must reproduce the above copyright
++          notice, this list of conditions and the following disclaimer in the
++          documentation and/or other materials provided with the distribution.
++        * Neither the name of the organizations to which the authors are
++          affiliated, nor the names of its contributors may be used to endorse
++          or promote products derived from this software without specific prior
++          written permission.
++
++    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
++    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
++    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++    DAMAGE.
++
++
+-- 
+2.50.1 (Apple Git-155)
+