Arrays use unamed fields, require non-standard (C11) extension.

Cython/Utility/arrayarray.h

@@ -14,8 +14,6 @@
 #ifndef _ARRAYARRAY_H
 #define _ARRAYARRAY_H
 
-#include <Python.h>
-
 struct arrayobject; /* Forward */
 
 /* All possible arraydescr values are defined in the vector "descriptors"
@@ -60,10 +58,10 @@ typedef struct arrayobject {
     struct arraydescr *ob_descr;
 #if PY_VERSION_HEX >= 0x02040000
     PyObject *weakreflist; /* List of weak references */
+#endif
 #if PY_VERSION_HEX >= 0x03000000
         int ob_exports;  /* Number of exported buffers */
 #endif
-#endif
 } arrayobject;
 
 
@@ -73,7 +71,7 @@ typedef struct arrayobject {
  *  fast creation of a new array
  */
  
-inline PyObject * newarrayobject(PyTypeObject *type, Py_ssize_t size,
+CYTHON_INLINE PyObject * newarrayobject(PyTypeObject *type, Py_ssize_t size,
     struct arraydescr *descr) {
     arrayobject *op;
     size_t nbytes;

runtests.py

@@ -84,8 +84,8 @@ def update_numpy_extension(ext):
     ext.include_dirs.append(numpy.get_include())
 
 def update_pyarray_extension(ext):
-    ext.include_dirs.append(
-        os.path.join(os.path.dirname(DISTDIR), "Cython/Includes/cpython"))
+    # See http://gcc.gnu.org/onlinedocs/gcc/Unnamed-Fields.html#Unnamed-Fields
+    ext.extra_compile_args.append('-fms-extensions')
 
 def update_openmp_extension(ext):
     ext.openmp = True