diff --git a/cmake/modules/InstallationHelper.cmake b/cmake/modules/InstallationHelper.cmake
--- a/cmake/modules/InstallationHelper.cmake
+++ b/cmake/modules/InstallationHelper.cmake
@@ -2,11 +2,72 @@
 
 include(GNUInstallDirs)
 
-macro(install_target _target)
+function(install_target _target)
+	set(RUNTIME_DESTINATION "${CMAKE_INSTALL_BINDIR}")
+	# CMake installs Windows shared libraries to the RUNTIME destination folder,
+	# but autotools install them into the LIBRARY destination folder.
+	# This special case only purpose is to provide identical installation trees
+	# between CMake and autotools.
+	get_target_property(_target_type ${_target} TYPE)
+	if(${CMAKE_SYSTEM_NAME} MATCHES "Windows" AND _target_type STREQUAL "SHARED_LIBRARY")
+		set(RUNTIME_DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+	endif()
+
 	install(
 		TARGETS ${_target}
-		RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+		RUNTIME DESTINATION "${RUNTIME_DESTINATION}"
 		LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
 		PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
 	)
-endmacro()
+endfunction()
+
+function(install_shared_library NAME)
+	cmake_parse_arguments(ARG
+		""
+		""
+		"PUBLIC_HEADER"
+		${ARGN}
+	)
+
+	set(_sources ${ARG_UNPARSED_ARGUMENTS})
+
+	get_target_property(_target_type ${NAME} TYPE)
+	if(_target_type STREQUAL "SHARED_LIBRARY")
+		set(_shared_name "${NAME}")
+		target_sources(${NAME} PRIVATE ${_sources})
+	else()
+		set(_shared_name "${NAME}-shared")
+		add_library(${_shared_name} SHARED ${_sources})
+		target_link_libraries(${_shared_name} ${NAME})
+	endif()
+
+	if(ARG_PUBLIC_HEADER)
+		list(APPEND _properties PUBLIC_HEADER ${ARG_PUBLIC_HEADER})
+	endif()
+
+	if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+		# FIXME For compatibility reason with autotools, the version is set
+		# to 0.0.0 (major being actually 0). This is obviously wrong and the
+		# version of the library should reflect the version of the release.
+		# On platforms other than linux, only the major version (0) is used.
+		# Replace the VERSION line with the statement below to set the
+		# correct version:
+		# set(_properties VERSION "${bitcoin-abc_VERSION}")
+		list(APPEND _properties VERSION "${bitcoin-abc_VERSION_MAJOR}.0.0")
+	else()
+		list(APPEND _properties VERSION "${bitcoin-abc_VERSION_MAJOR}")
+	endif()
+
+	# For autotools compatibility, rename the library to ${OUTPUT_NAME}-0.dll
+	if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
+		list(APPEND _properties OUTPUT_NAME "${NAME}-${bitcoin-abc_VERSION_MAJOR}")
+	else()
+		list(APPEND _properties OUTPUT_NAME "${NAME}")
+	endif()
+
+	list(APPEND _properties SOVERSION "${bitcoin-abc_VERSION_MAJOR}")
+
+	set_target_properties(${_shared_name} PROPERTIES ${_properties})
+
+	install_target(${_shared_name})
+endfunction()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -15,6 +15,7 @@
 option(BUILD_BITCOIN_CLI "Build bitcoin-cli" ON)
 option(BUILD_BITCOIN_TX "Build bitcoin-tx" ON)
 option(BUILD_BITCOIN_QT "Build bitcoin-qt" ON)
+option(BUILD_LIBBITCOINCONSENSUS "Build the bitcoinconsenus shared library" ON)
 option(ENABLE_HARDENING "Harden the executables" ON)
 option(ENABLE_REDUCE_EXPORTS "Reduce the amount of exported symbols" OFF)
 option(ENABLE_STATIC_LIBSTDCXX "Statically link libstdc++" OFF)
@@ -374,7 +375,6 @@
 
 # script library
 add_library(script
-	script/bitcoinconsensus.cpp
 	script/bitfield.cpp
 	script/interpreter.cpp
 	script/ismine.cpp
@@ -399,6 +399,20 @@
 
 target_link_libraries(bitcoinconsensus script)
 
+if(BUILD_LIBBITCOINCONSENSUS)
+	target_compile_definitions(bitcoinconsensus
+		PUBLIC
+			BUILD_BITCOIN_INTERNAL
+			HAVE_CONSENSUS_LIB
+	)
+
+	include(InstallationHelper)
+	install_shared_library(bitcoinconsensus
+		script/bitcoinconsensus.cpp
+		PUBLIC_HEADER script/bitcoinconsensus.h
+	)
+endif()
+
 # Bitcoin server facilities
 add_library(server
 	addrdb.cpp
@@ -510,7 +524,6 @@
 endif()
 
 include(BinaryTest)
-include(InstallationHelper)
 
 # bitcoin-cli
 if(BUILD_BITCOIN_CLI)
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -154,6 +154,11 @@
 find_package(Boost 1.58 REQUIRED unit_test_framework)
 
 target_link_libraries(test_bitcoin Boost::unit_test_framework rpcclient server)
+if(TARGET bitcoinconsensus-shared)
+	target_link_libraries(test_bitcoin bitcoinconsensus-shared)
+else()
+	target_link_libraries(test_bitcoin bitcoinconsensus)
+endif()
 
 # We need to detect if the BOOST_TEST_DYN_LINK flag is required.
 set(CMAKE_REQUIRED_LIBRARIES Boost::unit_test_framework)