diff --git a/.cproject b/.cproject
index 1d070ceed..7c478cd64 100644
--- a/.cproject
+++ b/.cproject
@@ -98,11 +98,63 @@
 			<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
 			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
 		</cconfiguration>
+		<cconfiguration id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.127261216">
+			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.127261216" moduleId="org.eclipse.cdt.core.settings" name="fast">
+				<externalSettings/>
+				<extensions>
+					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
+					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
+					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
+				</extensions>
+			</storageModule>
+			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
+				<configuration artifactName="gtsam" buildProperties="" description="" id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.127261216" name="fast" parent="org.eclipse.cdt.build.core.emptycfg">
+					<folderInfo id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.127261216." name="/" resourcePath="">
+						<toolChain id="cdt.managedbuild.toolchain.gnu.macosx.base.1052998998" name="cdt.managedbuild.toolchain.gnu.macosx.base" superClass="cdt.managedbuild.toolchain.gnu.macosx.base">
+							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF;org.eclipse.cdt.core.MachO64" id="cdt.managedbuild.target.gnu.platform.macosx.base.1735323246" name="Debug Platform" osList="macosx" superClass="cdt.managedbuild.target.gnu.platform.macosx.base"/>
+							<builder arguments="" buildPath="${workspace_loc:/gtsam/build-fast}" command="make" id="cdt.managedbuild.target.gnu.builder.macosx.base.1127775962" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="5" superClass="cdt.managedbuild.target.gnu.builder.macosx.base"/>
+							<tool id="cdt.managedbuild.tool.macosx.c.linker.macosx.base.1922513433" name="MacOS X C Linker" superClass="cdt.managedbuild.tool.macosx.c.linker.macosx.base"/>
+							<tool id="cdt.managedbuild.tool.macosx.cpp.linker.macosx.base.1097733515" name="MacOS X C++ Linker" superClass="cdt.managedbuild.tool.macosx.cpp.linker.macosx.base">
+								<inputType id="cdt.managedbuild.tool.macosx.cpp.linker.input.2101986359" superClass="cdt.managedbuild.tool.macosx.cpp.linker.input">
+									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
+									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
+								</inputType>
+							</tool>
+							<tool id="cdt.managedbuild.tool.gnu.assembler.macosx.base.1665834395" name="GCC Assembler" superClass="cdt.managedbuild.tool.gnu.assembler.macosx.base">
+								<inputType id="cdt.managedbuild.tool.gnu.assembler.input.1096646805" superClass="cdt.managedbuild.tool.gnu.assembler.input"/>
+							</tool>
+							<tool id="cdt.managedbuild.tool.gnu.archiver.macosx.base.1662212593" name="GCC Archiver" superClass="cdt.managedbuild.tool.gnu.archiver.macosx.base"/>
+							<tool id="cdt.managedbuild.tool.gnu.cpp.compiler.macosx.base.165336396" name="GCC C++ Compiler" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.macosx.base">
+								<option id="gnu.cpp.compiler.option.include.paths.1336290606" name="Include paths (-I)" superClass="gnu.cpp.compiler.option.include.paths" valueType="includePath">
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/gtsam}&quot;"/>
+									<listOptionValue builtIn="false" value="/usr/include/c++/4.6.1"/>
+									<listOptionValue builtIn="false" value="/usr/include/c++/4.6"/>
+									<listOptionValue builtIn="false" value="/usr/include/c++/4.6/backward"/>
+								</option>
+								<inputType id="cdt.managedbuild.tool.gnu.cpp.compiler.input.515209182" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.input"/>
+							</tool>
+							<tool id="cdt.managedbuild.tool.gnu.c.compiler.macosx.base.302039063" name="GCC C Compiler" superClass="cdt.managedbuild.tool.gnu.c.compiler.macosx.base">
+								<inputType id="cdt.managedbuild.tool.gnu.c.compiler.input.623172045" superClass="cdt.managedbuild.tool.gnu.c.compiler.input"/>
+							</tool>
+						</toolChain>
+					</folderInfo>
+				</configuration>
+			</storageModule>
+			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
+			<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
+			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
+		</cconfiguration>
 	</storageModule>
 	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
 		<project id="gtsam.null.1344331286" name="gtsam"/>
 	</storageModule>
-	<storageModule moduleId="refreshScope"/>
+	<storageModule moduleId="refreshScope" versionNumber="1">
+		<resource resourceType="PROJECT" workspacePath="/gtsam"/>
+	</storageModule>
 	<storageModule moduleId="scannerConfiguration">
 		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
 		<profile id="org.eclipse.cdt.make.core.GCCStandardMakePerFileProfile">
diff --git a/.project b/.project
index d20fd358e..a3c3ae46b 100644
--- a/.project
+++ b/.project
@@ -23,7 +23,7 @@
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.buildArguments</key>
-					<value>-j2</value>
+					<value>-j5</value>
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.buildCommand</key>
@@ -31,7 +31,7 @@
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.buildLocation</key>
-					<value>${workspace_loc:/gtsam/build}</value>
+					<value>${workspace_loc:/gtsam/build-fast}</value>
 				</dictionary>
 				<dictionary>
 					<key>org.eclipse.cdt.make.core.cleanBuildTarget</key>
diff --git a/gtsam/base/DerivedValue.h b/gtsam/base/DerivedValue.h
index 92f294848..66e7d79a4 100644
--- a/gtsam/base/DerivedValue.h
+++ b/gtsam/base/DerivedValue.h
@@ -8,7 +8,10 @@
 #pragma once
 
 #include <boost/pool/singleton_pool.hpp>
+#include <boost/serialization/serialization.hpp>
+#include <boost/serialization/export.hpp>
 #include <gtsam/base/Value.h>
+
 namespace gtsam {
 
 template<class DERIVED>