diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/Common/ProgressUtils.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/Common/ProgressUtils.cpp	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,42 @@
+// ProgressUtils.h
+
+#include "StdAfx.h"
+
+#include "ProgressUtils.h"
+
+CLocalProgress::CLocalProgress()
+{
+  ProgressOffset = InSize = OutSize = 0;
+  SendRatio = SendProgress = true;
+}
+
+void CLocalProgress::Init(IProgress *progress, bool inSizeIsMain)
+{
+  _ratioProgress.Release();
+  _progress = progress;
+  _progress.QueryInterface(IID_ICompressProgressInfo, &_ratioProgress);
+  _inSizeIsMain = inSizeIsMain;
+}
+
+STDMETHODIMP CLocalProgress::SetRatioInfo(const UInt64 *inSize, const UInt64 *outSize)
+{
+  UInt64 inSizeNew = InSize, outSizeNew = OutSize;
+  if (inSize)
+    inSizeNew += (*inSize);
+  if (outSize)
+    outSizeNew += (*outSize);
+  if (SendRatio && _ratioProgress)
+  {
+    RINOK(_ratioProgress->SetRatioInfo(&inSizeNew, &outSizeNew));
+  }
+  inSizeNew += ProgressOffset;
+  outSizeNew += ProgressOffset;
+  if (SendProgress)
+    return _progress->SetCompleted(_inSizeIsMain ? &inSizeNew : &outSizeNew);
+  return S_OK;
+}
+
+HRESULT CLocalProgress::SetCur()
+{
+  return SetRatioInfo(NULL, NULL);
+}