WIP / DNM: build with meson on unix

recipe/build.sh

@@ -1,9 +1,15 @@
 #!/bin/bash
+set -ex
 
-set -x
+mkdir builddir
 
-# Use the G77 ABI wrapper everywhere so that the underlying blas implementation
-# can have a G77 ABI (currently only MKL)
-export SCIPY_USE_G77_ABI_WRAPPER=1
+# need to run meson first for cross-compilation case
+$PYTHON $(which meson) setup ${MESON_ARGS} \
+    -Dblas=blas \
+    -Dlapack=lapack \
+    -Duse-g77-abi=true \
+    builddir || (cat builddir/meson-logs/meson-log.txt && exit 1)
 
-$PYTHON setup.py install --single-version-externally-managed --record=record.txt
+# -wnx flags mean: --wheel --no-isolation --skip-dependency-check
+$PYTHON -m build -w -n -x -Cbuilddir=builddir
+pip install dist/scipy*.whl

recipe/meta.yaml

@@ -14,6 +14,11 @@ source:
   # the submodules (not in tarball due to dear-github/dear-github#214)
   - url: https://github.com/scipy/scipy/archive/refs/tags/v{{ version }}.tar.gz
     sha256: 8f08e1742c9b09eb58640fa5a56031d6e1844806899e883fbe7447ca86fe8c55
+    patches:
+      # backport https://github.com/scipy/scipy/pull/18006
+      - patches/0001-BLD-use-a-relative-path-to-numpy-pybind11-pythran-in.patch
+      # backport https://github.com/scipy/scipy/pull/18034
+      - patches/0002-BLD-avoid-running-run_command-py3-.-for-better-cross.patch
   # https://github.com/scipy/scipy/tree/v{{ version }}/scipy/_lib
   - git_url: https://github.com/scipy/boost-headers-only.git
     git_rev: 3af99e6d566043072e95bc882d32c9c26f37e0ba
@@ -39,7 +44,10 @@ requirements:
     - cython                                 # [build_platform != target_platform]
     - numpy                                  # [build_platform != target_platform]
     - pybind11                               # [build_platform != target_platform]
-    - setuptools <60                         # [build_platform != target_platform]
+    - meson-python                           # [build_platform != target_platform]
+    - cmake                                  # [build_platform != target_platform]
+    - ninja                                  # [build_platform != target_platform]
+    - pkg-config                             # [build_platform != target_platform]
     - {{ compiler('c') }}
     - {{ compiler('cxx') }}
     # pythran code needs clang-cl on windows
@@ -54,8 +62,12 @@ requirements:
     - libcblas
     - liblapack
     - python
-    - setuptools <60
+    - setuptools <60  # [win]
     - cython
+    - meson-python    # [unix]
+    - ninja           # [unix]
+    - pkg-config      # [unix]
+    - python-build    # [unix]
     - pybind11
     - pythran
     - numpy
@@ -78,14 +90,26 @@ requirements:
 {% set tests_to_skip = tests_to_skip + " or (test_optimize and TestBrute and test_workers)" %}    # [aarch64 or ppc64le]
 # tests that run into timeouts (set in scipy test suite) in emulation
 {% set tests_to_skip = tests_to_skip + " or (test_propack and test_examples)" %}                  # [aarch64 or ppc64le]
+# occasionally runs out of memory on windows + pypy
+{% set tests_to_skip = tests_to_skip + " or test_bootstrap_against_" %}                           # [(python_impl == "pypy") and win]
 # very slow tests for pypy in emulation
-{% set tests_to_skip = tests_to_skip + " or test_triple_integral_improper" %}                     # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_all_nograd_minimizers or test_basic_fit_mle" %}  # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_cdf_against_tables or test_pdf_integration" %}   # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_cdist_ and (refcount or calling_convention)" %}  # [(python_impl == "pypy") and (aarch64 or ppc64le)]
 {% set tests_to_skip = tests_to_skip + " or test_conditionally_positive_definite" %}              # [(python_impl == "pypy") and (aarch64 or ppc64le)]
-{% set tests_to_skip = tests_to_skip + " or test_cont_basic[500" %}                               # [(python_impl == "pypy") and (aarch64 or ppc64le)]
-{% set tests_to_skip = tests_to_skip + " or test_gh12922 or test_modules_importable" %}           # [(python_impl == "pypy") and (aarch64 or ppc64le)]
-{% set tests_to_skip = tests_to_skip + " or test_random_complex_exact" %}                         # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_cont_basic[500 or test_cython_api[elliprj]" %}   # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_filtfilt_gust or test_kappa3_array_gh13582" %}   # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_fitstart[genexpon-shapes28] or test_gh12922" %}  # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_integration_sparse or test_kdtree_box" %}        # [(python_impl == "pypy") and (aarch64 or ppc64le)]
 {% set tests_to_skip = tests_to_skip + " or test_minimize_callback_copies_array[fmin]" %}         # [(python_impl == "pypy") and (aarch64 or ppc64le)]
-{% set tests_to_skip = tests_to_skip + " or TestDifferentialEvolutionSolver" %}                   # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_mip1 or test_mixed_threads_processes" %}         # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_modules_importable or test_neldermead_limit" %}  # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or test_random_exact or test_random_complex_exact" %}    # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or TestDualAnnealing or TestQuad or TestNQuad" %}        # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or TestDifferentialEvolutionSolver or TestTRF" %}        # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or TestMonteCarloHypothesisTest" %}                      # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or (TestBessel and test_fs_param)" %}                    # [(python_impl == "pypy") and (aarch64 or ppc64le)]
+{% set tests_to_skip = tests_to_skip + " or (TestOrdQZWorkspaceSize and test_decompose)" %}       # [(python_impl == "pypy") and (aarch64 or ppc64le)]
 
 test:
   requires: