diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 0bc8500..a4ac78f 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -265,6 +265,7 @@ static const CRPCCommand vRPCCommands[] =
     { "lockunspent",            &lockunspent,            false,     false,      true },
     { "listlockunspent",        &listlockunspent,        false,     false,      true },
     { "verifychain",            &verifychain,            true,      false,      false },
+    { "getcoinsupply",          &getcoinsupply,          true,      false,      false },
 };
 
 CRPCTable::CRPCTable()
@@ -1194,6 +1195,8 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     if (strMethod == "importprivkey"          && n > 2) ConvertTo<bool>(params[2]);
     if (strMethod == "verifychain"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
     if (strMethod == "verifychain"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
+    if (strMethod == "getcoinsupply"          && n > 0) ConvertTo<boost::int64_t>(params[0], true);
+    if (strMethod == "getcoinsupply"          && n > 1) ConvertTo<bool>(params[1], true);
 
     return params;
 }
diff --git a/src/bitcoinrpc.h b/src/bitcoinrpc.h
index bea7712..b7a2bbc 100644
--- a/src/bitcoinrpc.h
+++ b/src/bitcoinrpc.h
@@ -206,4 +206,6 @@ extern json_spirit::Value gettxoutsetinfo(const json_spirit::Array& params, bool
 extern json_spirit::Value gettxout(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value verifychain(const json_spirit::Array& params, bool fHelp);
 
+extern json_spirit::Value getcoinsupply(const json_spirit::Array& params, bool fHelp);
+
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index 147cc78..553d005 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1124,6 +1124,47 @@ int64 static GetBlockValue(int nHeight, int64 nFees)
     return nSubsidy + nFees;
 }
 
+int64 GetTotalCoinSupply(int nHeight, bool noCheckpoints)
+{
+    int64 totalSupply = 0;
+    int startBlock = 1;
+    if ( !noCheckpoints ) {
+        // Reduce the amount of calculations by specifying total checkpoints
+        int heights[] = {
+            100000, 200000, 300000, 400000, 500000,
+            600000, 700000, 800000, 900000, 1000000,
+            1100000
+        };
+        int64 supplies[] = {
+            482721500000000, 982721500000000, 1482721500000000, 1982721500000000, 2482721500000000,
+            2882721500000000, 2982721500000000, 3082721500000000, 3182721500000000, 3282721500000000,
+            3382721500000000
+        };
+        if (nHeight>=1 ) {
+            int numHeights = (int)(sizeof(heights)/sizeof(heights[0]));
+//            int numSupplies = (int)(sizeof(supplies)/sizeof(supplies[0]));
+//            if (nHeight>heights[numHeights-1]) {
+//                nHeight = heights[numHeights-1];
+//            }
+            for (int i=(numHeights-1); i>=0; i--) {
+                if ( heights[i] <= nHeight ) {
+                    if (i>=0) {
+                        totalSupply = supplies[i];
+                        startBlock = heights[i] + 1;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    if ( nHeight>=1 ) {
+        for (int i = startBlock; i <= nHeight; i++) {
+            totalSupply += GetBlockValue( i, 0 );
+        }
+    }
+    return totalSupply;
+}
+
 static const int64 nTargetTimespan =  0.25 * 24 * 60 * 60; // CasinoCoin: 0.25 day / 6 hours
 static const int64 nTargetSpacing = 1 * 30; // CasinoCoin: 30 seconds
 static const int64 nInterval = nTargetTimespan / nTargetSpacing;
diff --git a/src/main.h b/src/main.h
index 72c320b..32fd37e 100644
--- a/src/main.h
+++ b/src/main.h
@@ -191,12 +191,8 @@ CBlockIndex * InsertBlockIndex(uint256 hash);
 bool VerifySignature(const CCoins& txFrom, const CTransaction& txTo, unsigned int nIn, unsigned int flags, int nHashType);
 /** Abort with a message */
 bool AbortNode(const std::string &msg);
-
-
-
-
-
-
+/** Get total coin supply for block height */
+int64 GetTotalCoinSupply(int nHeight, bool noCheckpoints);
 
 
 
diff --git a/src/makefile.mingw b/src/makefile.mingw
index 0d468ee..34b492e 100644
--- a/src/makefile.mingw
+++ b/src/makefile.mingw
@@ -21,21 +21,21 @@ USE_UPNP:=-
 USE_IPV6:=1
 
 DEPSDIR?=/usr/local
-BOOST_SUFFIX?=-mgw46-mt-s-1_53
+BOOST_SUFFIX?=-mgw49-mt-s-1_55
 
 INCLUDEPATHS= \
  -I"$(CURDIR)" \
- -I"E:\crypto\deps\boost_1_53_0" \
- -I"E:\crypto\deps\db-4.8.30.NC\build_unix" \
- -I"E:\crypto\deps\openssl-1.0.1b\include" \
- -I"E:\crypto\deps\qrencode-3.4.3"
+ -I"C:\deps\boost_1_55_0" \
+ -I"C:\deps\db-4.8.30.NC\build_unix" \
+ -I"C:\deps\openssl-1.0.1p\include" \
+ -I"C:\deps\qrencode-3.4.3"
 
 LIBPATHS= \
  -L"$(CURDIR)/leveldb" \
- -L"E:\crypto\deps\boost_1_53_0\stage\lib" \
- -L"E:\crypto\deps\db-4.8.30.NC\build_unix" \
- -L"E:\crypto\deps\openssl-1.0.1b" \
- -L"E:\crypto\deps\qrencode-3.4.3\.libs"
+ -L"C:\deps\boost_1_55_0\stage\lib" \
+ -L"C:\deps\db-4.8.30.NC\build_unix" \
+ -L"C:\deps\openssl-1.0.1p" \
+ -L"C:\deps\qrencode-3.4.3\.libs"
 
 LIBS= \
  -l leveldb \
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index b184ae7..5748c5d 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -1607,3 +1607,22 @@ Value listlockunspent(const Array& params, bool fHelp)
     return ret;
 }
 
+Value getcoinsupply(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() > 2)
+        throw runtime_error(
+            "getcoinsupply [height]\n"
+            "Returns the total number of issued coins at the current block.\n"
+            "Pass in [height] to inform about the coin supply for a certain block.");
+
+    int height = nBestHeight;
+    bool noCheckpoints = false;
+    if (params.size() > 0) {
+        height = (int) params[0].get_int();
+        if(params.size() > 1){
+            noCheckpoints = (bool) params[1].get_bool();
+        }
+    }
+    int64 coinSupply =  GetTotalCoinSupply(height,noCheckpoints);
+    return ValueFromAmount(coinSupply);
+}