nodejs-electron/libxml-2.12-xmlCtxtGetLastError-const.patch

In version 2.12 of libxml2 a function changed its signature in a non-ABI-breaking way:
https://github.com/GNOME/libxml2/commit/61034116d0a3c8b295c6137956adc3ae55720711

Make code compatible with both signatures

--- src/third_party/blink/renderer/core/xml/xslt_processor.h.orig	2023-11-15 19:51:53.839267200 +0000
+++ src/third_party/blink/renderer/core/xml/xslt_processor.h	2023-11-18 12:29:54.948129800 +0000
@@ -78,6 +78,7 @@ class XSLTProcessor final : public Scrip
   void reset();
 
   static void ParseErrorFunc(void* user_data, xmlError*);
+  static void ParseErrorFunc(void* user_data, xmlError const*);
   static void GenericErrorFunc(void* user_data, const char* msg, ...);
 
   // Only for libXSLT callbacks
--- src/third_party/blink/renderer/core/xml/xslt_processor_libxslt.cc.orig	2023-11-15 19:51:53.839267200 +0000
+++ src/third_party/blink/renderer/core/xml/xslt_processor_libxslt.cc	2023-11-18 15:17:13.507401500 +0000
@@ -66,7 +66,7 @@ void XSLTProcessor::GenericErrorFunc(voi
   // It would be nice to do something with this error message.
 }
 
-void XSLTProcessor::ParseErrorFunc(void* user_data, xmlError* error) {
+void XSLTProcessor::ParseErrorFunc(void* user_data, xmlError const *error) {
   FrameConsole* console = static_cast<FrameConsole*>(user_data);
   if (!console)
     return;
@@ -92,6 +92,10 @@ void XSLTProcessor::ParseErrorFunc(void*
                                        nullptr)));
 }
 
+void XSLTProcessor::ParseErrorFunc(void* user_data, xmlError *error) {
+  return ParseErrorFunc(user_data, const_cast<xmlError const *>(error));
+}
+
 // FIXME: There seems to be no way to control the ctxt pointer for loading here,
 // thus we have globals.
 static XSLTProcessor* g_global_processor = nullptr;