diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3de28909..34a2447b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -149,9 +149,6 @@ if (NOT LANGUAGES)
 		if ("${TARGET_PLATFORM}" STREQUAL "w64")
 			cmake_policy(SET CMP0020 NEW)
 		endif ()
-		if (NOT JSONRPC_LS)
-			message(FATAL_ERROR "Alethzero requires jsonrpc.")
-		endif()
 
 		add_subdirectory(libjsqrc)
 		add_subdirectory(libqethereum)
diff --git a/cmake/EthDependencies.cmake b/cmake/EthDependencies.cmake
index 5934b1512..376a6c03f 100644
--- a/cmake/EthDependencies.cmake
+++ b/cmake/EthDependencies.cmake
@@ -1,11 +1,18 @@
 # all dependencies that are not directly included in the cpp-ethereum distribution are defined here
 # for this to work, download the dependency via the cmake script in extdep or install them manually!
 
-set(ETH_DEPENDENCY_INSTALL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/extdep/install")
+# by defining this variable, cmake will look for dependencies first in our own repository before looking in system paths like /usr/local/ ...
+# this must be set to point to the same directory as $ETH_DEPENDENCY_INSTALL_DIR in /extdep directory
+set (CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/extdep/install")
 
-set (CRYPTOPP_ROOT_DIR ${ETH_DEPENDENCY_INSTALL_DIR}) 	
 find_package (CryptoPP 5.6.2 REQUIRED)
-message("-- CryptoPP header: ${CRYPTOPP_INCLUDE_DIRS}")
-message("-- CryptoPP libs  : ${CRYPTOPP_LIBRARIES}")
+message(" - CryptoPP header: ${CRYPTOPP_INCLUDE_DIRS}")
+message(" - CryptoPP lib   : ${CRYPTOPP_LIBRARIES}")
 
 
+find_package (JsonRpcCpp REQUIRED)
+if (${JSON_RPC_CPP_FOUND})
+    message (" - json-rpc-cpp header: ${JSON_RPC_CPP_INCLUDE_DIRS}")
+    message (" - json-rpc-cpp lib   : ${JSON_RPC_CPP_LIBRARIES}")
+	add_definitions(-DETH_JSONRPC)
+endif()
diff --git a/cmake/EthDependenciesDeprecated.cmake b/cmake/EthDependenciesDeprecated.cmake
index 4be546a13..aacb625db 100644
--- a/cmake/EthDependenciesDeprecated.cmake
+++ b/cmake/EthDependenciesDeprecated.cmake
@@ -85,29 +85,6 @@ else()
 		message(STATUS "Failed to find the miniupnpc headers!")
 	endif ()
 
-	find_path( JSONRPC_ID jsonrpc/rpc.h
-		/usr/include
-		/usr/local/include
-		)
-	if ( JSONRPC_ID )
-		message(STATUS "Found jsonrpc headers")
-		find_library( JSONRPC_LS NAMES jsonrpc
-			PATHS
-			/usr/lib
-			/usr/local/lib
-			/opt/local/lib
-			/usr/lib/*/
-			)
-		if ( JSONRPC_LS )
-			message(STATUS "Found jsonrpc library: ${JSONRPC_LS}")
-		add_definitions(-DETH_JSONRPC)
-		else ()
-			message(STATUS "Failed to find the jsonrpc library!")
-		endif ()
-	else ()
-		message(STATUS "Failed to find the jsonrpc headers!")
-	endif ()
-
 	find_path( READLINE_ID readline/readline.h
 		/usr/include
 		/usr/local/include
@@ -152,9 +129,6 @@ endif()
 if(READLINE_ID)
 	include_directories(${READLINE_ID})
 endif()
-if(JSONRPC_ID)
-	include_directories(${JSONRPC_ID})
-endif()
 
 
 
diff --git a/cmake/FindCryptoPP.cmake b/cmake/FindCryptoPP.cmake
index 74a01e83a..a9e7183c0 100644
--- a/cmake/FindCryptoPP.cmake
+++ b/cmake/FindCryptoPP.cmake
@@ -104,5 +104,5 @@ SET (CRYPTOPP_LIBRARIES ${CRYPTOPP_LIBRARY})
 MARK_AS_ADVANCED (CRYPTOPP_INCLUDE_DIR CRYPTOPP_LIBRARY CRYPTOPP_LIBRARY_DEBUG
   CRYPTOPP_LIBRARY_RELEASE)
 
-FIND_PACKAGE_HANDLE_STANDARD_ARGS (CryptoPP REQUIRED_VARS CRYPTOPP_ROOT_DIR
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (CryptoPP REQUIRED_VARS 
   CRYPTOPP_INCLUDE_DIR CRYPTOPP_LIBRARY VERSION_VAR CRYPTOPP_VERSION)
diff --git a/cmake/FindJsonRcpCpp.cmake b/cmake/FindJsonRpcCpp.cmake
similarity index 85%
rename from cmake/FindJsonRcpCpp.cmake
rename to cmake/FindJsonRpcCpp.cmake
index 1a7d45069..c056418b0 100644
--- a/cmake/FindJsonRcpCpp.cmake
+++ b/cmake/FindJsonRpcCpp.cmake
@@ -9,12 +9,6 @@
 #  JSON_RCP_CPP_LIBRARIES, the libraries needed to use jsoncpp.
 #  JSON_RCP_CPP_FOUND, If false, do not try to use jsoncpp.
 
-if (JSON_RPC_CPP_LIBRARIES AND JSON_RPC_CPP_INCLUDE_DIRS)
-  # in cache already
-  set(JSON_RPC_CPP_FOUND TRUE)
-endif()
-
-
 # only look in default directories
 find_path(
     JSON_RPC_CPP_INCLUDE_DIR 
@@ -32,10 +26,14 @@ find_library(
 set (JSON_RPC_CPP_INCLUDE_DIRS ${JSON_RPC_CPP_INCLUDE_DIR})
 set (JSON_RPC_CPP_LIBRARIES ${JSON_RPC_CPP_LIBRARY})
 
+# message (" - json-rcp-cpp header : ${JSON_RPC_CPP_INCLUDE_DIRS}")
+# message (" - json-rcp-cpp lib    : ${JSON_RPC_CPP_LIBRARIES}")
+
+
 include(FindPackageHandleStandardArgs)
 # handle the QUIETLY and REQUIRED arguments and set JSON_RPC_CPP_FOUND to TRUE
 # if all listed variables are TRUE
-find_package_handle_standard_args(json-rpc-cpp DEFAULT_MSG
+find_package_handle_standard_args(json_rpc_cpp DEFAULT_MSG
      JSON_RPC_CPP_LIBRARY JSON_RPC_CPP_INCLUDE_DIR)                             
 
 
diff --git a/extdep/CMakeLists.txt b/extdep/CMakeLists.txt
index 121f21067..666ea5f15 100644
--- a/extdep/CMakeLists.txt
+++ b/extdep/CMakeLists.txt
@@ -2,13 +2,12 @@ cmake_minimum_required(VERSION 2.8)
 
 include(ExternalProject)
 
-# dependencies will be installed into this directory
+# all dependencies will be installed into this directory
 set(ETH_DEPENDENCY_INSTALL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/install")
-
 file(MAKE_DIRECTORY ${ETH_DEPENDENCY_INSTALL_DIR})
 
 include(cryptopp.cmake)
 include(curl.cmake)
 include(json-rpc-cpp.cmake)
-include(miniupnpc.cmake)
+#include(miniupnpc.cmake)
 
diff --git a/extdep/FindCURL.cmake b/extdep/FindCURL.cmake
index 6a82ebb22..22d51591c 100644
--- a/extdep/FindCURL.cmake
+++ b/extdep/FindCURL.cmake
@@ -1,4 +1,4 @@
-# hacky way to resolve nested dependencies
+# hacky way to resolve nested dependencies - needed for json-rpc-cpp
 find_library(CURL_LIBRARY NAMES curl
 	PATHS
 	${ETH_DEPENDENCY_INSTALL_DIR}/lib
diff --git a/extdep/curl.cmake b/extdep/curl.cmake
index 5d915c79b..13e10361d 100644
--- a/extdep/curl.cmake
+++ b/extdep/curl.cmake
@@ -1,12 +1,20 @@
+
+set (CONFIG_CMD  ./configure --prefix=${ETH_DEPENDENCY_INSTALL_DIR} --exec-prefix=${ETH_DEPENDENCY_INSTALL_DIR})
+
 if(${APPLE})
-ExternalProject_Add(curl
+	set(CONFIG_CMD  ./configure --with-darwinssl --prefix=${ETH_DEPENDENCY_INSTALL_DIR} --exec-prefix=${ETH_DEPENDENCY_INSTALL_DIR})
+endif()
+
+
+
+ExternalProject_Add(
+	curl
 	URL http://curl.haxx.se/download/curl-7.38.0.tar.bz2 
 	BINARY_DIR curl-prefix/src/curl
-	CONFIGURE_COMMAND ./configure --with-darwinssl --prefix=${ETH_DEPENDENCY_INSTALL_DIR} --exec-prefix=${ETH_DEPENDENCY_INSTALL_DIR}
+	CONFIGURE_COMMAND ${CONFIG_CMD}
 	BUILD_COMMAND make -j 3
 	INSTALL_COMMAND make install
-	)
-else()
+)
+
 
-endif()
 
diff --git a/extdep/json-rpc-cpp.cmake b/extdep/json-rpc-cpp.cmake
new file mode 100644
index 000000000..28c5f7cf1
--- /dev/null
+++ b/extdep/json-rpc-cpp.cmake
@@ -0,0 +1,11 @@
+ExternalProject_Add(json-rpc-cpp
+	DEPENDS curl
+	GIT_REPOSITORY https://github.com/cinemast/libjson-rpc-cpp.git 
+	GIT_TAG eaca2481e2889d5a5b748383fb02b1d395969cd4
+	BINARY_DIR json-rpc-cpp-prefix/src/json-rpc-cpp
+	CONFIGURE_COMMAND cmake -DCMAKE_INSTALL_PREFIX=${ETH_DEPENDENCY_INSTALL_DIR} -DCMAKE_MODULE_PATH:PATH=${CMAKE_CURRENT_SOURCE_DIR} -DETH_DEPENDENCY_INSTALL_DIR:PATH=${ETH_DEPENDENCY_INSTALL_DIR} -DCMAKE_BUILD_TYPE=None -DCMAKE_FIND_FRAMEWORK=LAST -Wno-dev .
+	BUILD_COMMAND make jsonrpc -j 3
+	INSTALL_COMMAND make install
+	)
+
+