update to Expat 1.95.8
diff --git a/Modules/expat/expat_external.h b/Modules/expat/expat_external.h
new file mode 100644
index 0000000..4145cac
--- /dev/null
+++ b/Modules/expat/expat_external.h
@@ -0,0 +1,92 @@
+/* Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
+ See the file COPYING for copying permission.
+*/
+
+/* External API definitions */
+
+#if defined(_MSC_EXTENSIONS) && !defined(__BEOS__) && !defined(__CYGWIN__)
+#define XML_USE_MSC_EXTENSIONS 1
+#endif
+
+/* Expat tries very hard to make the API boundary very specifically
+ defined. There are two macros defined to control this boundary;
+ each of these can be defined before including this header to
+ achieve some different behavior, but doing so it not recommended or
+ tested frequently.
+
+ XMLCALL - The calling convention to use for all calls across the
+ "library boundary." This will default to cdecl, and
+ try really hard to tell the compiler that's what we
+ want.
+
+ XMLIMPORT - Whatever magic is needed to note that a function is
+ to be imported from a dynamically loaded library
+ (.dll, .so, or .sl, depending on your platform).
+
+ The XMLCALL macro was added in Expat 1.95.7. The only one which is
+ expected to be directly useful in client code is XMLCALL.
+
+ Note that on at least some Unix versions, the Expat library must be
+ compiled with the cdecl calling convention as the default since
+ system headers may assume the cdecl convention.
+*/
+#ifndef XMLCALL
+#if defined(XML_USE_MSC_EXTENSIONS)
+#define XMLCALL __cdecl
+#elif defined(__GNUC__) && defined(__i386)
+#define XMLCALL __attribute__((cdecl))
+#else
+/* For any platform which uses this definition and supports more than
+ one calling convention, we need to extend this definition to
+ declare the convention used on that platform, if it's possible to
+ do so.
+
+ If this is the case for your platform, please file a bug report
+ with information on how to identify your platform via the C
+ pre-processor and how to specify the same calling convention as the
+ platform's malloc() implementation.
+*/
+#define XMLCALL
+#endif
+#endif /* not defined XMLCALL */
+
+
+#if !defined(XML_STATIC) && !defined(XMLIMPORT)
+#ifndef XML_BUILDING_EXPAT
+/* using Expat from an application */
+
+#ifdef XML_USE_MSC_EXTENSIONS
+#define XMLIMPORT __declspec(dllimport)
+#endif
+
+#endif
+#endif /* not defined XML_STATIC */
+
+/* If we didn't define it above, define it away: */
+#ifndef XMLIMPORT
+#define XMLIMPORT
+#endif
+
+
+#define XMLPARSEAPI(type) XMLIMPORT type XMLCALL
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef XML_UNICODE_WCHAR_T
+#define XML_UNICODE
+#endif
+
+#ifdef XML_UNICODE /* Information is UTF-16 encoded. */
+#ifdef XML_UNICODE_WCHAR_T
+typedef wchar_t XML_Char;
+typedef wchar_t XML_LChar;
+#else
+typedef unsigned short XML_Char;
+typedef char XML_LChar;
+#endif /* XML_UNICODE_WCHAR_T */
+#else /* Information is UTF-8 encoded. */
+typedef char XML_Char;
+typedef char XML_LChar;
+#endif /* XML_UNICODE */