[pypy-commit] cffi release-1.12: hg merge default
arigo
pypy.commits at gmail.com
Sat Feb 16 08:19:15 EST 2019
Author: Armin Rigo <arigo at tunes.org>
Branch: release-1.12
Changeset: r3221:f70fc47c1871
Date: 2019-02-16 14:19 +0100
http://bitbucket.org/cffi/cffi/changeset/f70fc47c1871/
Log: hg merge default
diff --git a/cffi/_cffi_include.h b/cffi/_cffi_include.h
--- a/cffi/_cffi_include.h
+++ b/cffi/_cffi_include.h
@@ -8,43 +8,20 @@
the same works for the other two macros. Py_DEBUG implies them,
but not the other way around.
- The implementation is messy (issue #350): on Windows, with _MSC_VER,
- we have to define Py_LIMITED_API even before including pyconfig.h.
- In that case, we guess what pyconfig.h will do to the macros above,
- and check our guess after the #include.
-
- Note that on Windows, with CPython 3.x, you need virtualenv version
- >= 16.0.0. Older versions don't copy PYTHON3.DLL. As a workaround
- you can remove the definition of Py_LIMITED_API here.
-
- See also 'py_limited_api' in cffi/setuptools_ext.py.
+ Issue #350 is still open: on Windows, the code here causes it to link
+ with PYTHON36.DLL (for example) instead of PYTHON3.DLL. A fix was
+ attempted in 164e526a5515 and 14ce6985e1c3, but reverted: virtualenv
+ does not make PYTHON3.DLL available, and so the "correctly" compiled
+ version would not run inside a virtualenv. We will re-apply the fix
+ after virtualenv has been fixed for some time. For explanation, see
+ issue #355. For a workaround if you want PYTHON3.DLL and don't worry
+ about virtualenv, see issue #350. See also 'py_limited_api' in
+ setuptools_ext.py.
*/
#if !defined(_CFFI_USE_EMBEDDING) && !defined(Py_LIMITED_API)
-# ifdef _MSC_VER
-# if !defined(_DEBUG) && !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG)
-# define Py_LIMITED_API
-# endif
-# include <pyconfig.h>
- /* sanity-check: Py_LIMITED_API will cause crashes if any of these
- are also defined. Normally, the Python file PC/pyconfig.h does not
- cause any of these to be defined, with the exception that _DEBUG
- causes Py_DEBUG. Double-check that. */
-# ifdef Py_LIMITED_API
-# if defined(Py_DEBUG)
-# error "pyconfig.h unexpectedly defines Py_DEBUG, but Py_LIMITED_API is set"
-# endif
-# if defined(Py_TRACE_REFS)
-# error "pyconfig.h unexpectedly defines Py_TRACE_REFS, but Py_LIMITED_API is set"
-# endif
-# if defined(Py_REF_DEBUG)
-# error "pyconfig.h unexpectedly defines Py_REF_DEBUG, but Py_LIMITED_API is set"
-# endif
-# endif
-# else
-# include <pyconfig.h>
-# if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG)
-# define Py_LIMITED_API
-# endif
+# include <pyconfig.h>
+# if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG)
+# define Py_LIMITED_API
# endif
#endif
diff --git a/cffi/setuptools_ext.py b/cffi/setuptools_ext.py
--- a/cffi/setuptools_ext.py
+++ b/cffi/setuptools_ext.py
@@ -81,8 +81,14 @@
it doesn't so far, creating troubles. That's why we check
for "not hasattr(sys, 'gettotalrefcount')" (the 2.7 compatible equivalent
of 'd' not in sys.abiflags). (http://bugs.python.org/issue28401)
+
+ On Windows, with CPython <= 3.4, it's better not to use py_limited_api
+ because virtualenv *still* doesn't copy PYTHON3.DLL on these versions.
+ For now we'll skip py_limited_api on all Windows versions to avoid an
+ inconsistent mess.
"""
- if 'py_limited_api' not in kwds and not hasattr(sys, 'gettotalrefcount'):
+ if ('py_limited_api' not in kwds and not hasattr(sys, 'gettotalrefcount')
+ and sys.platform != 'win32'):
import setuptools
try:
setuptools_major_version = int(setuptools.__version__.partition('.')[0])
diff --git a/doc/source/whatsnew.rst b/doc/source/whatsnew.rst
--- a/doc/source/whatsnew.rst
+++ b/doc/source/whatsnew.rst
@@ -3,6 +3,22 @@
======================
+v1.12.1
+=======
+
+* CPython 3 on Windows: we again no longer compile with ``Py_LIMITED_API``
+ by default because such modules *still* cannot be used with virtualenv.
+ The problem is that it doesn't work in CPython <= 3.4, and for
+ technical reason we can't enable this flag automatically based on the
+ version of Python.
+
+ Like before, `Issue #350`_ mentions a workaround if you still want
+ the ``Py_LIMITED_API`` flag and *either* you are not concerned about
+ virtualenv *or* you are sure your module will not be used on CPython
+ <= 3.4: pass ``define_macros=[("Py_LIMITED_API", None)]`` to the
+ ``ffibuilder.set_source()`` call.
+
+
v1.12
=====
diff --git a/testing/cffi0/test_ownlib.py b/testing/cffi0/test_ownlib.py
--- a/testing/cffi0/test_ownlib.py
+++ b/testing/cffi0/test_ownlib.py
@@ -351,6 +351,8 @@
def test_modify_struct_value(self):
if self.module is None:
py.test.skip("fix the auto-generation of the tiny test lib")
+ if self.Backend is CTypesBackend:
+ py.test.skip("fails with the ctypes backend on some architectures")
ffi = FFI(backend=self.Backend())
ffi.cdef("""
typedef struct {
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