wxOS2 with Open Watcom: correct PCH usage, missing headers, warning fixes, source cleaning and other Watcom adjustements.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34905 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/expat/lib/os2config.h

@@ -0,0 +1,26 @@
+/*================================================================
+** Copyright 2000, Clark Cooper
+** All rights reserved.
+**
+** This is free software. You are permitted to copy, distribute, or modify
+** it under the terms of the MIT/X license (contained in the COPYING file
+** with this distribution.)
+*/
+
+#ifndef OS2CONFIG_H
+#define OS2CONFIG_H
+
+#include <memory.h>
+#include <string.h>
+
+#define XML_NS 1
+#define XML_DTD 1
+#define XML_CONTEXT_BYTES 1024
+
+/* we will assume all OS2 platforms are little endian */
+#define BYTEORDER 1234
+
+/* OS2 has memmove() available. */
+#define HAVE_MEMMOVE
+
+#endif /* ndef OS2CONFIG_H */

src/expat/lib/xmlparse.c

@@ -10,6 +10,11 @@
 #include "winconfig.h"
 #include "expat.h"
 
+#elif defined(OS2_32)
+
+#include "os2config.h"
+#include "expat.h"
+
 #elif defined(MACOS_CLASSIC)
 
 #include "macconfig.h"
@@ -5535,8 +5540,8 @@ poolGrow(STRING_POOL *pool)
     int blockSize = (pool->end - pool->start)*2;
     pool->blocks = (BLOCK *)
       pool->mem->realloc_fcn(pool->blocks,
-			     (offsetof(BLOCK, s)
-			      + blockSize * sizeof(XML_Char)));
+                             (offsetof(BLOCK, s)
+                             + blockSize * sizeof(XML_Char)));
     if (pool->blocks == NULL)
       return XML_FALSE;
     pool->blocks->size = blockSize;
@@ -5552,7 +5557,7 @@ poolGrow(STRING_POOL *pool)
     else
       blockSize *= 2;
     tem = (BLOCK *)pool->mem->malloc_fcn(offsetof(BLOCK, s)
-					+ blockSize * sizeof(XML_Char));
+                                         + blockSize * sizeof(XML_Char));
     if (!tem)
       return XML_FALSE;
     tem->size = blockSize;

src/expat/lib/xmlrole.c

@@ -4,6 +4,8 @@
 
 #ifdef COMPILED_FROM_DSP
 #include "winconfig.h"
+#elif defined(OS2_32)
+#include "os2config.h"
 #elif defined(MACOS_CLASSIC)
 #include "macconfig.h"
 #else

src/expat/lib/xmltok.c

@@ -4,6 +4,8 @@
 
 #ifdef COMPILED_FROM_DSP
 #include "winconfig.h"
+#elif defined(OS2_32)
+#include "os2config.h"
 #elif defined(MACOS_CLASSIC)
 #include "macconfig.h"
 #else