diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,13 @@
+# Copyright (c) 2017 The Bitcoin developers
+
+cmake_minimum_required(VERSION 3.1)
+project(BitcoinABC)
+
+# If ccache is available, then use it.
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif(CCACHE_FOUND)
+
+add_subdirectory(src)
diff --git a/cmake/platforms/Win32.cmake b/cmake/platforms/Win32.cmake
new file mode 100644
--- /dev/null
+++ b/cmake/platforms/Win32.cmake
@@ -0,0 +1,20 @@
+# Copyright (c) 2017 The Bitcoin developers
+
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX i686-w64-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/platforms/Win64.cmake b/cmake/platforms/Win64.cmake
new file mode 100644
--- /dev/null
+++ b/cmake/platforms/Win64.cmake
@@ -0,0 +1,20 @@
+# Copyright (c) 2017 The Bitcoin developers
+
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,3 @@
+# Copyright (c) 2017 The Bitcoin developers
+
+add_subdirectory(univalue)
diff --git a/src/univalue/CMakeLists.txt b/src/univalue/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/src/univalue/CMakeLists.txt
@@ -0,0 +1,53 @@
+# Copyright (c) 2017 The Bitcoin developers
+
+cmake_minimum_required(VERSION 3.1)
+project(univalue)
+
+option(UNIVALUE_BUILD_TESTS "Build univalue's unit tests" ON)
+
+include_directories(include)
+
+# TODO: Version info
+add_library(univalue
+	lib/univalue.cpp
+	lib/univalue_get.cpp
+	lib/univalue_read.cpp
+	lib/univalue_write.cpp
+)
+
+target_include_directories(univalue PRIVATE lib)
+
+if(UNIVALUE_BUILD_TESTS)
+	enable_testing()
+
+	add_executable(unitester_test test/unitester.cpp)
+	add_test(NAME unitester_test COMMAND unitester_tests)
+	target_link_libraries(unitester_test univalue)
+
+	target_compile_definitions(unitester_test
+		PUBLIC JSON_TEST_SRC="${PROJECT_SOURCE_DIR}/test"
+	)
+
+	add_executable(json_test test/test_json.cpp)
+	add_test(NAME json_test COMMAND json_test)
+	target_link_libraries(json_test univalue)
+
+	add_executable(no_nul_test test/no_nul.cpp)
+	add_test(NAME no_nul_test COMMAND no_nul_test)
+	target_link_libraries(no_nul_test univalue)
+
+	add_executable(object_test test/object.cpp)
+	add_test(NAME object_test COMMAND object_test)
+	target_link_libraries(object_test univalue)
+endif(UNIVALUE_BUILD_TESTS)
+
+# Generate lib/univalue_escapes.h
+add_executable(univalue_gen gen/gen.cpp)
+
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
+add_custom_command(
+	OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/lib/univalue_escapes.h
+	COMMAND univalue_gen > ${CMAKE_CURRENT_BINARY_DIR}/lib/univalue_escapes.h
+	DEPENDS univalue_gen ${CMAKE_CURRENT_SOURCE_DIR}/lib/univalue_escapes.h
+)
+add_custom_target(generate_univalue_escapes_h DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/lib/univalue_escapes.h)