--- C/LzmaLib.h
+++ C/LzmaLib.h
@@ -106,7 +106,11 @@
   int lc,        /* 0 <= lc <= 8, default = 3  */
   int lp,        /* 0 <= lp <= 4, default = 0  */
   int pb,        /* 0 <= pb <= 4, default = 2  */
+  int algo,      /* 0 - fast, 1 - normal, default = 1 */
   int fb,        /* 5 <= fb <= 273, default = 32 */
+  const wchar_t *matchFinderMode, /* valid values are HC4, BT2, BT3, BT4. HC stands for "hash chain"-mode, BT for "bin tree"-mode, default BT4 */
+  UInt32 mc,     /* 1 <= mc <= (1 << 30), default = 32, mc stands for matchFinderCycles/matchFinderCutValue */
+  Bool writeEndMark,
   int numThreads /* 1 or 2, default = 2 */
   );
 
--- C/LzmaLib.c
+++ C/LzmaLib.c
@@ -12,6 +12,46 @@
 static void SzFree(void *p, void *address) { p = p; MyFree(address); }
 static ISzAlloc g_Alloc = { SzAlloc, SzFree };
 
+
+#if 1 /* copy&pasted from CPP/7zip/Compress/LzmaEncoder.cpp */
+inline wchar_t GetUpperChar(wchar_t c) {
+  if (c >= 'a' && c <= 'z')
+    c -= 0x20;
+  return c;
+}
+
+static int ParseMatchFinder(const wchar_t *s, int *btMode, int *numHashBytes) {
+  wchar_t c = GetUpperChar(*s++);
+  if (c == L'H')
+  {
+    if (GetUpperChar(*s++) != L'C')
+      return 0;
+    int numHashBytesLoc = (int)(*s++ - L'0');
+    if (numHashBytesLoc < 4 || numHashBytesLoc > 4)
+      return 0;
+    if (*s++ != 0)
+      return 0;
+    *btMode = 0;
+    *numHashBytes = numHashBytesLoc;
+    return 1;
+  }
+  if (c != L'B')
+    return 0;
+
+  if (GetUpperChar(*s++) != L'T')
+    return 0;
+  int numHashBytesLoc = (int)(*s++ - L'0');
+  if (numHashBytesLoc < 2 || numHashBytesLoc > 4)
+    return 0;
+  c = GetUpperChar(*s++);
+  if (c != L'\0')
+    return 0;
+  *btMode = 1;
+  *numHashBytes = numHashBytesLoc;
+  return 1;
+}
+#endif
+
 MY_STDAPI LzmaCompress(unsigned char *dest, size_t  *destLen, const unsigned char *src, size_t  srcLen,
   unsigned char *outProps, size_t *outPropsSize,
   int level, /* 0 <= level <= 9, default = 5 */
@@ -19,7 +59,11 @@
   int lc, /* 0 <= lc <= 8, default = 3  */
   int lp, /* 0 <= lp <= 4, default = 0  */
   int pb, /* 0 <= pb <= 4, default = 2  */
+  int algo, /* 0 - fast, 1 - normal, default = 1 */
   int fb,  /* 5 <= fb <= 273, default = 32 */
+  const wchar_t *matchFinderMode, /* HC4, BT2, BT3, BT4 */
+  UInt32 mc, /* 1 <= mc <= (1 << 30), default = 32 */
+  Bool writeEndMark,
   int numThreads /* 1 or 2, default = 2 */
 )
 {
@@ -30,10 +74,16 @@
   props.lc = lc;
   props.lp = lp;
   props.pb = pb;
+  props.algo = algo;
   props.fb = fb;
+  if (matchFinderMode && !ParseMatchFinder(matchFinderMode, &props.btMode, &props.numHashBytes))
+    return SZ_ERROR_PARAM;
+  props.mc = mc;
+  props.writeEndMark = writeEndMark;
   props.numThreads = numThreads;
+  LzmaEncProps_Normalize(&props);
 
-  return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0,
+  return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, writeEndMark,
       NULL, &g_Alloc, &g_Alloc);
 }