diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/Common/RegisterArc.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/Common/RegisterArc.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,36 @@
+// RegisterArc.h
+
+#ifndef __REGISTERARC_H
+#define __REGISTERARC_H
+
+#include "../Archive/IArchive.h"
+
+typedef IInArchive * (*CreateInArchiveP)();
+typedef IOutArchive * (*CreateOutArchiveP)();
+
+struct CArcInfo
+{
+  const wchar_t *Name;
+  const wchar_t *Ext;
+  const wchar_t *AddExt;
+  Byte ClassId;
+  Byte Signature[16];
+  int SignatureSize;
+  bool KeepName;
+  CreateInArchiveP CreateInArchive;
+  CreateOutArchiveP CreateOutArchive;
+};
+
+void RegisterArc(const CArcInfo *arcInfo);
+
+#define REGISTER_ARC_NAME(x) CRegister ## x 
+
+#define REGISTER_ARC_DEC_SIG(x) struct REGISTER_ARC_NAME(x) { \
+    REGISTER_ARC_NAME(x)() { g_ArcInfo.Signature[0]--; RegisterArc(&g_ArcInfo); }}; \
+    static REGISTER_ARC_NAME(x) g_RegisterArc;
+
+#define REGISTER_ARC(x) struct REGISTER_ARC_NAME(x) { \
+    REGISTER_ARC_NAME(x)() { RegisterArc(&g_ArcInfo); }}; \
+    static REGISTER_ARC_NAME(x) g_RegisterArc;
+
+#endif