expat/lib xmlparse.c,1.159,1.160

Update of /cvsroot/expat/expat/lib
In directory sc8-pr-cvs5.sourceforge.net:/tmp/cvs-serv17016

Modified Files:
	xmlparse.c 
Log Message:
(s - NULL & 1) would not compiler under GCC 4.0.0. Changed to char* 
subtraction so that it will compile under MS VC++ and GCC.

Index: xmlparse.c
===================================================================
RCS file: /cvsroot/expat/expat/lib/xmlparse.c,v
retrieving revision 1.159
retrieving revision 1.160
diff -u -d -r1.159 -r1.160
--- xmlparse.c	5 Aug 2006 17:00:31 -0000	1.159
+++ xmlparse.c	6 Sep 2006 14:32:12 -0000	1.160
@@ -28,7 +28,8 @@
 #define XmlGetInternalEncoding XmlGetUtf16InternalEncoding
 #define XmlGetInternalEncodingNS XmlGetUtf16InternalEncodingNS
 #define XmlEncode XmlUtf16Encode
-#define MUST_CONVERT(enc, s) (!(enc)->isUtf16 || ((s - NULL) & 1))
+/* Using pointer subtraction to convert to integer type. */
+#define MUST_CONVERT(enc, s) (!(enc)->isUtf16 || (((char *)(s) - (char *)NULL) & 1))
 typedef unsigned short ICHAR;
 #else
 #define XML_ENCODE_MAX XML_UTF8_ENCODE_MAX