From cf190a3c2f166cf0a7dd004fee4b242ea29bf1f4 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Sat, 9 Jan 2021 11:33:26 +1100
Subject: [PATCH 2/2] PyModule_AddObject fix for Python 3.10

---
 src/_imaging.c | 21 +++++++++++++++------
 src/_webp.c    | 14 ++++++++++----
 2 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/src/_imaging.c b/src/_imaging.c
index a8741f6ad3..01dd22486e 100644
--- a/src/_imaging.c
+++ b/src/_imaging.c
@@ -4172,26 +4172,32 @@ setup_module(PyObject* m) {
   }
 #endif

+    PyObject *have_libjpegturbo;
 #ifdef LIBJPEG_TURBO_VERSION
-    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", Py_True);
+    have_libjpegturbo = Py_True;
     #define tostr1(a) #a
     #define tostr(a) tostr1(a)
     PyDict_SetItemString(d, "libjpeg_turbo_version", PyUnicode_FromString(tostr(LIBJPEG_TURBO_VERSION)));
     #undef tostr
     #undef tostr1
 #else
-    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", Py_False);
-#endif
+    have_libjpegturbo = Py_False;
+ #endif
+    Py_INCREF(have_libjpegturbo);
+    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", have_libjpegturbo);

+    PyObject *have_libimagequant;
 #ifdef HAVE_LIBIMAGEQUANT
-    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", Py_True);
+    have_libimagequant = Py_True;
     {
         extern const char* ImagingImageQuantVersion(void);
         PyDict_SetItemString(d, "imagequant_version", PyUnicode_FromString(ImagingImageQuantVersion()));
     }
 #else
-    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", Py_False);
+    have_libimagequant = Py_False;
 #endif
+    Py_INCREF(have_libimagequant);
+    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", have_libimagequant);

 #ifdef HAVE_LIBZ
   /* zip encoding strategies */
@@ -4222,11 +4228,14 @@ setup_module(PyObject* m) {
   }
 #endif

+    PyObject *have_xcb;
 #ifdef HAVE_XCB
-    PyModule_AddObject(m, "HAVE_XCB", Py_True);
+    have_xcb = Py_True;
 #else
-    PyModule_AddObject(m, "HAVE_XCB", Py_False);
+    have_xcb = Py_False;
 #endif
+    Py_INCREF(have_xcb);
+    PyModule_AddObject(m, "HAVE_XCB", have_xcb);

     PyDict_SetItemString(d, "PILLOW_VERSION", PyUnicode_FromString(version));

diff --git a/src/_webp.c b/src/_webp.c
index c7875fa368..4d51d99dfa 100644
--- a/src/_webp.c
+++ b/src/_webp.c
@@ -861,19 +861,25 @@ static PyMethodDef webpMethods[] =
 };

 void addMuxFlagToModule(PyObject* m) {
+    PyObject *have_webpmux;
 #ifdef HAVE_WEBPMUX
-    PyModule_AddObject(m, "HAVE_WEBPMUX", Py_True);
+    have_webpmux = Py_True;
 #else
-    PyModule_AddObject(m, "HAVE_WEBPMUX", Py_False);
+    have_webpmux = Py_False;
 #endif
+    Py_INCREF(have_webpmux);
+    PyModule_AddObject(m, "HAVE_WEBPMUX", have_webpmux);
 }

 void addAnimFlagToModule(PyObject* m) {
+    PyObject *have_webpanim;
 #ifdef HAVE_WEBPANIM
-    PyModule_AddObject(m, "HAVE_WEBPANIM", Py_True);
+    have_webpanim = Py_True;
 #else
-    PyModule_AddObject(m, "HAVE_WEBPANIM", Py_False);
+    have_webpanim = Py_False;
 #endif
+    Py_INCREF(have_webpanim);
+    PyModule_AddObject(m, "HAVE_WEBPANIM", have_webpanim);
 }

 void addTransparencyFlagToModule(PyObject* m) {