[LIBXML2] Actually, the VS build has the /wd4189 flag before /we4189 rendering it useless. Use another approach to silencing it.

svn path=/trunk/; revision=69027

reactos/lib/3rdparty/libxml2/CMakeLists.txt

@@ -68,7 +68,7 @@ add_pch(libxml2 libxml.h SOURCE)
 add_dependencies(libxml2 psdk)
 
 if(MSVC)
-	add_target_compile_flags(libxml2 "/wd4189")
+    replace_compile_flags("/we4189" " ")
 else()
     add_target_compile_flags(libxml2 "-w")
 endif()

reactos/lib/3rdparty/libxml2/libxml2_ros.diff

@@ -1,14 +0,0 @@
-Index: uri.c
-===================================================================
---- uri.c	(revision 69017)
-+++ uri.c	(working copy)
-@@ -2389,7 +2389,9 @@
-  */
- #if defined(_WIN32) && !defined(__CYGWIN__)
-     int len = 0;
-+#ifndef __REACTOS__
-     int i = 0;
-+#endif
-     xmlChar *p = NULL;
- #endif
-     xmlURIPtr uri;

reactos/lib/3rdparty/libxml2/uri.c

@@ -2389,9 +2389,7 @@ xmlCanonicPath(const xmlChar *path)
  */
 #if defined(_WIN32) && !defined(__CYGWIN__)
     int len = 0;
-#ifndef __REACTOS__
     int i = 0;
-#endif
     xmlChar *p = NULL;
 #endif
     xmlURIPtr uri;