bpo-29591: Upgrade Modules/expat to libexpat 2.2 (#2164)
* bpo-29591: Upgrade Modules/expat to libexpat 2.2
* bpo-29591: Restore Python changes on expat
* bpo-29591: Remove expat config of unsupported platforms
Remove the configuration (Modules/expat/*config.h) of unsupported
platforms:
* Amiga
* MacOS Classic on PPC32
* Open Watcom
* bpo-29591: Remove useless XML_HAS_SET_HASH_SALT
The XML_HAS_SET_HASH_SALT define of Modules/expat/expat.h became
useless since our local expat copy was upgrade to expat 2.1 (it's now
expat 2.2.0).
diff --git a/Modules/expat/internal.h b/Modules/expat/internal.h
index dd54548..94cb98e 100644
--- a/Modules/expat/internal.h
+++ b/Modules/expat/internal.h
@@ -71,3 +71,25 @@
#define inline
#endif
#endif
+
+#ifndef UNUSED_P
+# ifdef __GNUC__
+# define UNUSED_P(p) UNUSED_ ## p __attribute__((__unused__))
+# else
+# define UNUSED_P(p) UNUSED_ ## p
+# endif
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+void
+align_limit_to_full_utf8_characters(const char * from, const char ** fromLimRef);
+
+
+#ifdef __cplusplus
+}
+#endif