pyexpat: Make SetReparseDeferralEnabled available via PyExpat_CAPI

Author: hartwork

Include/pyexpat.h

@@ -3,7 +3,7 @@
 
 /* note: you must import expat.h before importing this module! */
 
-#define PyExpat_CAPI_MAGIC  "pyexpat.expat_CAPI 1.1"
+#define PyExpat_CAPI_MAGIC  "pyexpat.expat_CAPI 1.2"
 #define PyExpat_CAPSULE_NAME "pyexpat.expat_CAPI"
 
 struct PyExpat_CAPI
@@ -50,6 +50,8 @@ struct PyExpat_CAPI
         void *encodingHandlerData, const XML_Char *name, XML_Encoding *info);
     /* might be none for expat < 2.1.0 */
     int (*SetHashSalt)(XML_Parser parser, unsigned long hash_salt);
+    /* might be none for expat < 2.6.0 */
+    XML_Bool (*SetReparseDeferralEnabled)(XML_Parser parser, XML_Bool enabled);
     /* always add new stuff to the end! */
 };
 

Modules/expat/pyexpatns.h

@@ -108,6 +108,7 @@
 #define XML_SetNotStandaloneHandler     PyExpat_XML_SetNotStandaloneHandler
 #define XML_SetParamEntityParsing       PyExpat_XML_SetParamEntityParsing
 #define XML_SetProcessingInstructionHandler PyExpat_XML_SetProcessingInstructionHandler
+#define XML_SetReparseDeferralEnabled   PyExpat_XML_SetReparseDeferralEnabled
 #define XML_SetReturnNSTriplet          PyExpat_XML_SetReturnNSTriplet
 #define XML_SetSkippedEntityHandler     PyExpat_XML_SetSkippedEntityHandler
 #define XML_SetStartCdataSectionHandler PyExpat_XML_SetStartCdataSectionHandler

Modules/pyexpat.c

@@ -2051,6 +2051,11 @@ pyexpat_exec(PyObject *mod)
 #else
     capi->SetHashSalt = NULL;
 #endif
+#if XML_COMBINED_VERSION >= 20600
+    capi->SetReparseDeferralEnabled = XML_SetReparseDeferralEnabled;
+#else
+    capi->SetReparseDeferralEnabled = NULL;
+#endif
 
     /* export using capsule */
     PyObject *capi_object = PyCapsule_New(capi, PyExpat_CAPSULE_NAME,