added dependencies and build files (loosely inspired by Sebastian Dorda's love-native-android)

jni/physfs-2.0.2/lzma/CPP/7zip/Archive/Common/OutStreamWithCRC.h

@@ -0,0 +1,38 @@
+// OutStreamWithCRC.h
+
+#ifndef __OUTSTREAMWITHCRC_H
+#define __OUTSTREAMWITHCRC_H
+
+#include "../../../Common/MyCom.h"
+#include "../../IStream.h"
+
+extern "C" 
+{ 
+#include "../../../../C/7zCrc.h"
+}
+
+class COutStreamWithCRC: 
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+  CMyComPtr<ISequentialOutStream> _stream;
+  UInt64 _size;
+  UInt32 _crc;
+  bool _calculate;
+public:
+  MY_UNKNOWN_IMP
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+  void SetStream(ISequentialOutStream *stream) { _stream = stream; }
+  void ReleaseStream() { _stream.Release(); }
+  void Init(bool calculate = true)
+  {
+    _size = 0;
+    _calculate = calculate;
+    _crc = CRC_INIT_VAL;
+  }
+  void InitCRC() { _crc = CRC_INIT_VAL; }
+  UInt64 GetSize() const { return _size; }
+  UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
+};
+
+#endif