--- webkitgtk-2.42.2/Source/WebCore/xml/XSLTProcessor.h.orig	2023-11-25 15:40:55.964477218 +0100
+++ webkitgtk-2.42.2/Source/WebCore/xml/XSLTProcessor.h	2023-11-25 15:41:00.126507392 +0100
@@ -61,7 +61,7 @@
 
     void reset();
 
-    static void parseErrorFunc(void* userData, xmlError*);
+    static void parseErrorFunc(void* userData, const xmlError*);
     static void genericErrorFunc(void* userData, const char* msg, ...);
     
     // Only for libXSLT callbacks
--- webkitgtk-2.42.2/Source/WebCore/xml/XSLTProcessorLibxslt.cpp.orig	2023-11-25 15:54:11.058051011 +0100
+++ webkitgtk-2.42.2/Source/WebCore/xml/XSLTProcessorLibxslt.cpp	2023-11-25 15:54:18.276056735 +0100
@@ -59,7 +59,7 @@
     // It would be nice to do something with this error message.
 }
 
-void XSLTProcessor::parseErrorFunc(void* userData, xmlError* error)
+void XSLTProcessor::parseErrorFunc(void* userData, const xmlError* error)
 {
     PageConsoleClient* console = static_cast<PageConsoleClient*>(userData);
     if (!console)