Update to 7-Zip Version 21.07

See: https://sourceforge.net/p/sevenzip/discussion/45797/thread/0a7b47970b/

CPP/7zip/Archive/SwfHandler.cpp

@@ -21,12 +21,20 @@
 
 #include "../Compress/CopyCoder.h"
 #include "../Compress/LzmaDecoder.h"
-#include "../Compress/LzmaEncoder.h"
 #include "../Compress/ZlibDecoder.h"
-#include "../Compress/ZlibEncoder.h"
 
 #include "Common/DummyOutStream.h"
+
+// #define SWF_UPDATE
+
+#ifdef SWF_UPDATE
+
+#include "../Compress/LzmaEncoder.h"
+#include "../Compress/ZlibEncoder.h"
+
 #include "Common/HandlerOut.h"
+ 
+#endif
 
 using namespace NWindows;
 
@@ -152,8 +160,10 @@ struct CItem
 class CHandler:
   public IInArchive,
   public IArchiveOpenSeq,
+ #ifdef SWF_UPDATE
   public IOutArchive,
   public ISetProperties,
+ #endif
   public CMyUnknownImp
 {
   CItem _item;
@@ -162,16 +172,22 @@ class CHandler:
   CMyComPtr<ISequentialInStream> _seqStream;
   CMyComPtr<IInStream> _stream;
 
+ #ifdef SWF_UPDATE
   CSingleMethodProps _props;
   bool _lzmaMode;
+  #endif
 
 public:
-  CHandler(): _lzmaMode(false) {}
+ #ifdef SWF_UPDATE
   MY_UNKNOWN_IMP4(IInArchive, IArchiveOpenSeq, IOutArchive, ISetProperties)
-  INTERFACE_IInArchive(;)
+  CHandler(): _lzmaMode(false) {}
   INTERFACE_IOutArchive(;)
-  STDMETHOD(OpenSeq)(ISequentialInStream *stream);
   STDMETHOD(SetProperties)(const wchar_t * const *names, const PROPVARIANT *values, UInt32 numProps);
+ #else
+  MY_UNKNOWN_IMP2(IInArchive, IArchiveOpenSeq)
+ #endif
+  INTERFACE_IInArchive(;)
+  STDMETHOD(OpenSeq)(ISequentialInStream *stream);
 };
 
 static const Byte kProps[] =
@@ -416,6 +432,9 @@ STDMETHODIMP CHandler::Extract(const UInt32 *indices, UInt32 numItems,
   COM_TRY_END
 }
 
+
+#ifdef SWF_UPDATE
+
 static HRESULT UpdateArchive(ISequentialOutStream *outStream, UInt64 size,
     bool lzmaMode, const CSingleMethodProps &props,
     IArchiveUpdateCallback *updateCallback)
@@ -576,11 +595,14 @@ STDMETHODIMP CHandler::SetProperties(const wchar_t * const *names, const PROPVAR
   return S_OK;
 }
 
+#endif
+
+
 static const Byte k_Signature[] = {
     3, 'C', 'W', 'S',
     3, 'Z', 'W', 'S' };
 
-REGISTER_ARC_IO(
+REGISTER_ARC_I(
   "SWFc", "swf", "~.swf", 0xD8,
   k_Signature,
   0,