Merge pull request #200 from lpsinger/pypy-wheels

Build wheels for PyPy

.github/workflows/ci_tests.yml

@@ -53,7 +53,7 @@ jobs:
             toxenv: py311-test-alldeps-predeps
 
           - name: Python 3.9 with oldest supported version of all dependencies
-            os: ubuntu-22.04
+            os: ubuntu-20.04
             python: 3.9
             toxenv: py39-test-oldestdeps
 

astropy_healpix/_core.c

@@ -12,6 +12,28 @@
  */
 #include "ieee754.h"
 
+/* FIXME:
+ * The Numpy C-API defines PyArrayDescr_Type as:
+ *
+ *   #define PyArrayDescr_Type (*(PyTypeObject *)PyArray_API[3])
+ *
+ * and then in some places we need to take its address, &PyArrayDescr_Type.
+ * This is fine in GCC 10 and Clang, but earlier versions of GCC complain:
+ *
+ *   error: dereferencing pointer to incomplete type 'PyTypeObject'
+ *   {aka 'struct _typeobject'}
+ *
+ * As a workaround, provide a faux forward declaration for PyTypeObject.
+ * See https://github.com/numpy/numpy/issues/16970.
+ *
+ * Drop this when supporting gcc < 10 becomes irrelevant.
+ */
+#ifndef PYPY_VERSION
+struct _typeobject {
+    int _placeholder;
+};
+#endif
+
 
 #define INVALID_INDEX (-1)
 

pyproject.toml

@@ -8,7 +8,7 @@ requires = ["setuptools>=42.0.0",
 build-backend = 'setuptools.build_meta'
 
 [tool.cibuildwheel]
-skip = "*-musllinux_* pp*"
+skip = "*-musllinux_* pp310*"
 
 [tool.cibuildwheel.macos]
 archs = ["x86_64", "universal2"]