MAINT: testing: specify python executable to use in extbuild (numpy#28183)

DWesl · web-flow · commit 0b49d4314c95 · 2025-01-24T15:00:35.000+01:00
This would cause failures during testing distribution packages on Cygwin. The code is copied from meson-python, as advised in mesonbuild/meson-python#51 and amended in mesonbuild/meson-python#137. Note the changed organization in many of the links. The same pattern is also present in other NumPy test files where extension modules are build as part of the test suite.
diff --git a/numpy/testing/_private/extbuild.py b/numpy/testing/_private/extbuild.py
@@ -220,14 +220,20 @@ def build(cfile, outputfilename, compile_extra, link_extra,
                 include_directories: {include_dirs},
             )
         """))
+    native_file_name = cfile.parent / ".mesonpy-native-file.ini"
+    with open(native_file_name, "wt") as fid:
+        fid.write(textwrap.dedent(f"""\
+            [binaries]
+            python = '{sys.executable}'
+        """))
     if sys.platform == "win32":
         subprocess.check_call(["meson", "setup",
                                "--buildtype=release",
                                "--vsenv", ".."],
                               cwd=build_dir,
                               )
     else:
-        subprocess.check_call(["meson", "setup", "--vsenv", ".."],
+        subprocess.check_call(["meson", "setup", "--vsenv", "..", f'--native-file={os.fspath(native_file_name)}'],
                               cwd=build_dir
                               )
 
