diff --git a/SConstruct b/SConstruct
index d7ac9c49b4..7fc150d8ea 100644
--- a/SConstruct
+++ b/SConstruct
@@ -109,7 +109,10 @@ COMPILED_FILES = [
     'modules/ripple_db/ripple_db.cpp',
     'modules/ripple_json/ripple_json.cpp',
     'modules/ripple_ledger/ripple_ledger.cpp',
-    'modules/ripple_main/ripple_main.cpp',
+    'modules/ripple_main/ripple_main_pt1.cpp',
+    'modules/ripple_main/ripple_main_pt2.cpp',
+    'modules/ripple_main/ripple_main_pt3.cpp',
+    'modules/ripple_main/ripple_main_pt4.cpp',
     'modules/ripple_mess/ripple_mess.cpp',
     'modules/ripple_net/ripple_net.cpp',
     'Subtrees/beast/modules/beast_core/beast_core.cpp'
diff --git a/modules/ripple_main/ripple_main.cpp b/modules/ripple_main/ripple_main.cpp
index 0f72e445a1..15279c65b3 100644
--- a/modules/ripple_main/ripple_main.cpp
+++ b/modules/ripple_main/ripple_main.cpp
@@ -65,8 +65,6 @@
 #include <boost/ref.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/smart_ptr/shared_ptr.hpp>
-#include <boost/test/included/unit_test.hpp>
-#include <boost/test/unit_test.hpp>
 #include <boost/thread.hpp>
 #include <boost/thread/condition_variable.hpp>
 #include <boost/thread/mutex.hpp>
@@ -77,6 +75,12 @@
 #include <boost/unordered_set.hpp>
 #include <boost/weak_ptr.hpp>
 
+#if ! defined (RIPPLE_MAIN_PART) || RIPPLE_MAIN_PART == 1
+#include <boost/test/included/unit_test.hpp>
+#endif
+
+#include <boost/test/unit_test.hpp>
+
 #include <openssl/ec.h>
 #include <openssl/ripemd.h>
 #include <openssl/sha.h>
@@ -250,19 +254,15 @@ static const uint64 tenTo14m1 = tenTo14 - 1;
 static const uint64 tenTo17 = tenTo14 * 1000;
 static const uint64 tenTo17m1 = tenTo17 - 1;
 
-// This is for PeerDoor and WSDoor
-// Generate DH for SSL connection.
-static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
-{
-// VFALCO TODO eliminate this horrendous dependency on theApp and Wallet
-	return 512 == iKeyLength ? theApp->getWallet().getDh512() : theApp->getWallet().getDh1024();
-}
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
+
+#if ! defined (RIPPLE_MAIN_PART) || RIPPLE_MAIN_PART == 1
 
 #include "src/cpp/database/database.cpp"
 #include "src/cpp/database/SqliteDatabase.cpp"
@@ -294,6 +294,21 @@ static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
 #include "src/cpp/ripple/Operation.cpp" // no log
 #include "src/cpp/ripple/OrderBook.cpp" // no log
 #include "src/cpp/ripple/OrderBookDB.cpp"
+
+#endif
+
+//------------------------------------------------------------------------------
+
+#if ! defined (RIPPLE_MAIN_PART) || RIPPLE_MAIN_PART == 2
+
+// This is for PeerDoor and WSDoor
+// Generate DH for SSL connection.
+static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
+{
+// VFALCO TODO eliminate this horrendous dependency on theApp and Wallet
+	return 512 == iKeyLength ? theApp->getWallet().getDh512() : theApp->getWallet().getDh1024();
+}
+
 #include "src/cpp/ripple/ParameterTable.cpp" // no log
 #include "src/cpp/ripple/ParseSection.cpp"
 #include "src/cpp/ripple/Pathfinder.cpp"
@@ -320,9 +335,16 @@ static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
 #include "src/cpp/ripple/TransactionQueue.cpp" // no log
 #include "src/cpp/ripple/Transactor.cpp"
 #include "src/cpp/ripple/TrustSetTransactor.cpp"
+#include "src/cpp/ripple/WSDoor.cpp" // uses logging in WSConnection.h 
+
+#endif
+
+//------------------------------------------------------------------------------
+
+#if ! defined (RIPPLE_MAIN_PART) || RIPPLE_MAIN_PART == 3
+
 #include "src/cpp/ripple/Wallet.cpp"
 #include "src/cpp/ripple/WalletAddTransactor.cpp"
-#include "src/cpp/ripple/WSDoor.cpp" // uses logging in WSConnection.h 
 
 #include "src/cpp/ripple/ripple_HashedObject.cpp"
 
@@ -344,6 +366,13 @@ static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
 #include "src/cpp/ripple/ripple_HashedObjectStore.cpp"
 #include "src/cpp/ripple/ripple_HashRouter.cpp"
 //#include "src/cpp/ripple/ripple_InfoSub.cpp"
+
+#endif
+
+//------------------------------------------------------------------------------
+
+#if ! defined (RIPPLE_MAIN_PART) || RIPPLE_MAIN_PART == 4
+
 #include "src/cpp/ripple/ripple_Job.cpp"
 #include "src/cpp/ripple/ripple_JobQueue.cpp"
 #include "src/cpp/ripple/ripple_LedgerAcquire.cpp"
@@ -366,6 +395,10 @@ static DH* handleTmpDh(SSL* ssl, int is_export, int iKeyLength)
 
 #include "src/cpp/ripple/ripple_SHAMapSyncFilters.cpp" // requires Application
 
+#endif
+
+//------------------------------------------------------------------------------
+
 //------------------------------------------------------------------------------
 
 #ifdef _MSC_VER
diff --git a/modules/ripple_main/ripple_main_pt1.cpp b/modules/ripple_main/ripple_main_pt1.cpp
new file mode 100644
index 0000000000..221a56d054
--- /dev/null
+++ b/modules/ripple_main/ripple_main_pt1.cpp
@@ -0,0 +1,2 @@
+#define RIPPLE_MAIN_PART 1
+#include "ripple_main.cpp"
diff --git a/modules/ripple_main/ripple_main_pt2.cpp b/modules/ripple_main/ripple_main_pt2.cpp
new file mode 100644
index 0000000000..ee603ca3a8
--- /dev/null
+++ b/modules/ripple_main/ripple_main_pt2.cpp
@@ -0,0 +1,2 @@
+#define RIPPLE_MAIN_PART 2
+#include "ripple_main.cpp"
diff --git a/modules/ripple_main/ripple_main_pt3.cpp b/modules/ripple_main/ripple_main_pt3.cpp
new file mode 100644
index 0000000000..8057b5df39
--- /dev/null
+++ b/modules/ripple_main/ripple_main_pt3.cpp
@@ -0,0 +1,2 @@
+#define RIPPLE_MAIN_PART 3
+#include "ripple_main.cpp"
diff --git a/modules/ripple_main/ripple_main_pt4.cpp b/modules/ripple_main/ripple_main_pt4.cpp
new file mode 100644
index 0000000000..6602b5b3d9
--- /dev/null
+++ b/modules/ripple_main/ripple_main_pt4.cpp
@@ -0,0 +1,2 @@
+#define RIPPLE_MAIN_PART 4
+#include "ripple_main.cpp"