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	diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
	index 564f8cc..2f3d62c 100644
	--- a/.gitlab-ci.yml
	+++ b/.gitlab-ci.yml
	@@ -1,156 +1,156 @@
	.tags_template:
	tags: &tags_def
	- docker

	stages:
	- minimal_compile
	- different_compile
	- clean_code
	- publish

	variables:
	HEJ_Install_DIR: tmp_HEJ/HEJ_installed
	HEJ_build_DIR: tmp_HEJ/build_HEJ
	FOG_build_DIR: tmp_HEJ/build_FOG

	after_script:
	- date

	.HEJ_compile:
	tags: *tags_def
	before_script:
	- date
	- source /cvmfs/pheno.egi.eu/HEJ/HEJ_env.sh \|\| exit 1
	- export t_HEJ_Install_DIR=${PWD}/$HEJ_Install_DIR
	- export t_HEJ_build_DIR=${PWD}/$HEJ_build_DIR
	- export t_HEJ_DIR=${PWD}
	- mkdir -p ${t_HEJ_build_DIR}
	- cd ${t_HEJ_build_DIR}
	- cmake ${t_HEJ_DIR} -DCMAKE_BUILD_TYPE=DEBUG -DCMAKE_INSTALL_PREFIX=${t_HEJ_Install_DIR}
	- make -j 8

	Minimal_setup:
	stage: minimal_compile
	extends: .HEJ_compile
	image: hejdock/hepenv
	script:
	- make test

	FOG:
	stage: minimal_compile
	extends: .HEJ_compile
	image: hejdock/hepenv
	script:
	- date
	# install HEJ
	- make install
	# setup env
	- export LD_LIBRARY_PATH=${t_HEJ_Install_DIR}/lib:${LD_LIBRARY_PATH}
	- export PATH=${t_HEJ_Install_DIR}/bin:${PATH}
	- export t_FOG_build_DIR=${PWD}/$FOG_build_DIR
	- export t_FOG_DIR=${t_HEJ_DIR}/FixedOrderGen
	# compile
	- mkdir -p ${t_FOG_build_DIR}
	- cd ${t_FOG_build_DIR}
	- cmake ${t_FOG_DIR} -DCMAKE_BUILD_TYPE=DEBUG
	- make -j 8
	- make test


	rivet:
	stage: different_compile
	extends: .HEJ_compile
	image: hejdock/rivetenv
	variables:
	HEJ_build_DIR: tmp_HEJ/build_HEJ_rivet
	script:
	- make test
	- bash -c '[ -f tst.yoda ]' && echo "found rivet output"
	- rivet-cmphistos tst.yoda
	- bash -c '[ -f MC_XS_XS.dat ]' && echo "yoda not empty"

	QCDloop:
	stage: different_compile
	extends: .HEJ_compile
	image: hejdock/qcdloopenv
	variables:
	HEJ_build_DIR: tmp_HEJ/build_HEJ_qcd
	script:
	- make test

	HepMC3:
	stage: different_compile
	extends: .HEJ_compile
	image: hejdock/hepmc3env
	variables:
	HEJ_build_DIR: tmp_HEJ/build_HEJ_HepMC3
	script:
	- make test

	No_tabs:
	stage: clean_code
	tags: *tags_def
	image: hejdock/git
	script:
	- date
	- check_tabs

	No_warnings:
	stage: clean_code
	tags: *tags_def
	image: hejdock/hepenv
	before_script:
	- date
	- source /cvmfs/pheno.egi.eu/HEJ/HEJ_env.sh \|\| exit 1
	- export t_HEJ_Install_DIR=${PWD}/$HEJ_Install_DIR
	- export t_HEJ_build_DIR=${PWD}/$HEJ_build_DIR
	- export t_HEJ_DIR=${PWD}
	- export LD_LIBRARY_PATH=${t_HEJ_Install_DIR}/lib:${LD_LIBRARY_PATH}
	- export PATH=${t_HEJ_Install_DIR}/bin:${PATH}
	- export t_FOG_build_DIR=${PWD}/$FOG_build_DIR
	- export t_FOG_DIR=${t_HEJ_DIR}/FixedOrderGen
	- mkdir -p ${t_HEJ_build_DIR}
	- mkdir -p ${t_FOG_build_DIR}
	script:
	- - sed -i 's/include_directories(${lhapdf/include_directories(SYSTEM ${lhapdf/g' CMakeLists.txt
	+ - sed -i 's/include_directories(${LHAPDF/include_directories(SYSTEM ${LHAPDF/g' CMakeLists.txt
	- sed -i 's/include_directories(${fastjet/include_directories(SYSTEM ${fastjet/g' CMakeLists.txt
	- sed -i 's/include_directories(${Boost/include_directories(SYSTEM ${Boost/g' CMakeLists.txt
	- cd ${t_HEJ_build_DIR}
	- cmake ${t_HEJ_DIR} -DCMAKE_CXX_FLAGS="-Werror" -DCMAKE_INSTALL_PREFIX=${t_HEJ_Install_DIR}
	- make -j 8
	- make install
	- cd ${t_FOG_DIR}
	- - sed -i 's/include_directories(${lhapdf/include_directories(SYSTEM ${lhapdf/g' CMakeLists.txt
	+ - sed -i 's/include_directories(${LHAPDF/include_directories(SYSTEM ${LHAPDF/g' CMakeLists.txt
	- sed -i 's/include_directories(${fastjet/include_directories(SYSTEM ${fastjet/g' CMakeLists.txt
	- sed -i 's/include_directories(${Boost/include_directories(SYSTEM ${Boost/g' CMakeLists.txt
	- cd ${t_FOG_build_DIR}
	- cmake ${t_FOG_DIR} -DCMAKE_CXX_FLAGS="-Werror"
	- make -j 8

	.Publish:
	stage: publish
	tags: *tags_def
	image: hejdock/git
	before_script:
	- mkdir -p .ssh/ && echo "${SSH_KEY}" > .ssh/id_rsa && chmod 0600 .ssh/id_rsa
	- rm -rf ~/.ssh/id_rsa; mkdir -p ~/.ssh/
	- ln -s $PWD/.ssh/id_rsa ~/.ssh/id_rsa && chmod 0600 ~/.ssh/id_rsa
	- ssh -T ${PUBLIC_GIT_PREFIX} -o "StrictHostKeyChecking no" \|\| echo "added ssh"
	script:
	- git remote add public ${PUBLIC_GIT_PREFIX}${PUBLIC_GIT_POSTFIX}
	- git checkout $CI_COMMIT_REF_NAME
	- git branch
	- git pull
	- git push public
	- git push public --tags
	after_script:
	- rm -f /root/.ssh/id_rsa && rm -fr .ssh
	- git remote rm public

	Publish_version:
	extends: .Publish
	only:
	- /^v\d+\.\d+$/
	except:
	- tags
	when: on_success
	diff --git a/CMakeLists.txt b/CMakeLists.txt
	index 08d3c01..a6540e2 100644
	--- a/CMakeLists.txt
	+++ b/CMakeLists.txt
	@@ -1,255 +1,268 @@
	cmake_minimum_required(VERSION 3.1 FATAL_ERROR)

	set(CMAKE_LEGACY_CYGWIN_WIN32 0)
	set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

	-project("HEJ" VERSION 2.0.3 LANGUAGES C CXX)
	+project("HEJ" VERSION 2.0.4 LANGUAGES C CXX)

	# Set a default build type if none was specified
	set(default_build_type "RelWithDebInfo")

	if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
	message(STATUS "Setting build type to '${default_build_type}' as none was specified.")
	set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE
	STRING "Choose the type of build." FORCE)
	# Set the possible values of build type for cmake-gui
	set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
	"Debug" "Release" "MinSizeRel" "RelWithDebInfo")
	endif()

	## Flags for the compiler. No warning allowed.
	if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
	elseif (MSVC)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX /EHsc")
	endif()
	set(CMAKE_CXX_STANDARD_REQUIRED ON)
	set(CMAKE_CXX_STANDARD 14)

	## Create Version
	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")


	# Get the latest abbreviated commit hash of the working branch
	execute_process(
	COMMAND git rev-parse HEAD
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
	OUTPUT_VARIABLE PROJECT_GIT_REVISION
	OUTPUT_STRIP_TRAILING_WHITESPACE
	)
	# Get the current working branch
	execute_process(
	COMMAND git rev-parse --abbrev-ref HEAD
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
	OUTPUT_VARIABLE PROJECT_GIT_BRANCH
	OUTPUT_STRIP_TRAILING_WHITESPACE
	)

	## target directories for install
	set(INSTALL_INCLUDE_DIR_BASE include)
	set(INSTALL_INCLUDE_DIR ${INSTALL_INCLUDE_DIR_BASE}/HEJ)
	set(INSTALL_BIN_DIR bin)
	set(INSTALL_LIB_DIR lib)
	set(INSTALL_CONFIG_DIR lib/cmake/HEJ)

	## Template files
	configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Templates/Version.hh.in
	${PROJECT_BINARY_DIR}/include/HEJ/Version.hh @ONLY )

	configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Templates/HEJ-config.cc.in
	${PROJECT_BINARY_DIR}/src/bin/HEJ-config.cc @ONLY )

	# Generate CMake config file
	include(CMakePackageConfigHelpers)
	configure_package_config_file(
	cmake/Templates/hej-config.cmake.in
	${CMAKE_CURRENT_BINARY_DIR}/${INSTALL_CONFIG_DIR}/hej-config.cmake
	INSTALL_DESTINATION ${INSTALL_CONFIG_DIR}
	PATH_VARS INSTALL_INCLUDE_DIR_BASE INSTALL_LIB_DIR
	)
	write_basic_package_version_file(
	${CMAKE_CURRENT_BINARY_DIR}/${INSTALL_CONFIG_DIR}/hej-config-version.cmake
	COMPATIBILITY SameMajorVersion
	)
	install(
	FILES ${CMAKE_CURRENT_BINARY_DIR}/${INSTALL_CONFIG_DIR}/hej-config.cmake
	${CMAKE_CURRENT_BINARY_DIR}/${INSTALL_CONFIG_DIR}/hej-config-version.cmake
	DESTINATION ${INSTALL_CONFIG_DIR})

	## Add directories and find dependences
	include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include ${PROJECT_BINARY_DIR}/include)

	find_package(fastjet REQUIRED)
	-include_directories(${fastjet_INCLUDE_PATH})
	-find_package(clhep 2.3 REQUIRED)
	-include_directories(${CLHEP_INCLUDE_PATH})
	-find_package(lhapdf REQUIRED)
	-include_directories(${lhapdf_INCLUDE_PATH})
	+include_directories(${fastjet_INCLUDE_DIRS})
	+find_package(CLHEP 2.3 REQUIRED)
	+include_directories(${CLHEP_INCLUDE_DIRS})
	+find_package(LHAPDF REQUIRED)
	+include_directories(${LHAPDF_INCLUDE_DIRS})
	## Amend unintuitive behaviour of FindBoost.cmake
	## Priority of BOOST_ROOT over BOOSTROOT matches FindBoost.cmake
	## at least for cmake 3.12
	if(DEFINED BOOST_ROOT)
	message("BOOST_ROOT set - only looking for Boost in ${BOOST_ROOT}")
	set(Boost_NO_BOOST_CMAKE ON)
	elseif(DEFINED BOOSTROOT)
	message("BOOSTROOT set - only looking for Boost in ${BOOSTROOT}")
	set(Boost_NO_BOOST_CMAKE ON)
	endif()
	find_package(Boost REQUIRED COMPONENTS iostreams)
	include_directories(${Boost_INCLUDE_DIRS})
	-find_package(yaml-cpp)
	+find_package(yaml-cpp) # requiring yaml does not work with fedora
	include_directories(${YAML_CPP_INCLUDE_DIR})
	-find_package(HepMC 2)
	+if(${EXCLUDE_HepMC})
	+ message(STATUS "Skipping HepMC")
	+ # avoid "unused variable" warning if EXCLUDE_rivet is set by user
	+ set(EXCLUDE_rivet TRUE)
	+else()
	+ find_package(HepMC 2)
	+endif()
	if(${HepMC_FOUND})
	- message (STATUS "HepMC installation found: ${HepMC_INCLUDE_DIRS}")
	set(
	CMAKE_CXX_FLAGS
	"${CMAKE_CXX_FLAGS} -DHEJ_BUILD_WITH_HepMC_VERSION=${HepMC_VERSION_MAJOR}"
	)
	include_directories(${HepMC_INCLUDE_DIRS})
	- find_package(rivet)
	+ if(${EXCLUDE_rivet})
	+ message(STATUS "Skipping rivet")
	+ else()
	+ find_package(rivet)
	+ endif()
	if(${rivet_FOUND})
	- include_directories(${rivet_INCLUDE_PATH})
	- set(
	- CMAKE_CXX_FLAGS
	- "${CMAKE_CXX_FLAGS} -DHEJ_BUILD_WITH_RIVET"
	- )
	+ include_directories(${rivet_INCLUDE_DIRS})
	+ set(
	+ CMAKE_CXX_FLAGS
	+ "${CMAKE_CXX_FLAGS} -DHEJ_BUILD_WITH_RIVET"
	+ )
	endif()
	endif()
	-find_package(QCDloop 2)
	+if(${EXCLUDE_QCDloop})
	+ message(STATUS "Skipping QCDloop")
	+else()
	+ find_package(QCDloop 2)
	+endif()
	if(${QCDloop_FOUND})
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DHEJ_BUILD_WITH_QCDLOOP")
	include_directories(SYSTEM ${QCDloop_INCLUDE_DIRS})
	endif()

	add_subdirectory(src)

	## define executable
	add_executable(HEJ src/bin/HEJ.cc)

	## link libraries
	target_link_libraries(HEJ hejlib)

	add_executable(HEJ-config src/bin/HEJ-config.cc)

	file(GLOB hej_headers ${CMAKE_CURRENT_SOURCE_DIR}/include/HEJ/.hh ${PROJECT_BINARY_DIR}/include/HEJ/.hh)
	file(GLOB lhef_headers ${CMAKE_CURRENT_SOURCE_DIR}/include/LHEF/*.h)
	install(FILES ${hej_headers} DESTINATION ${INSTALL_INCLUDE_DIR})
	install(FILES ${lhef_headers} DESTINATION include/LHEF/)
	install(TARGETS HEJ HEJ-config DESTINATION ${INSTALL_BIN_DIR})

	## tests
	enable_testing()
	set(tst_dir "${CMAKE_CURRENT_SOURCE_DIR}/t")
	add_executable(test_classify ${tst_dir}/test_classify.cc)
	add_executable(test_psp ${tst_dir}/test_psp.cc)
	add_executable(test_ME_generic ${tst_dir}/test_ME_generic.cc)
	add_executable(check_res ${tst_dir}/check_res.cc)
	add_executable(check_lhe ${tst_dir}/check_lhe.cc)
	add_library(scales SHARED ${tst_dir}/scales.cc)
	add_executable(test_scale_import ${tst_dir}/test_scale_import)
	add_executable(test_descriptions ${tst_dir}/test_descriptions)
	add_executable(test_scale_arithmetics ${tst_dir}/test_scale_arithmetics)
	target_link_libraries(test_classify hejlib)
	target_link_libraries(test_psp hejlib)
	target_link_libraries(test_ME_generic hejlib)
	target_link_libraries(check_res hejlib)
	target_link_libraries(check_lhe hejlib)
	target_link_libraries(test_scale_import hejlib)
	target_link_libraries(test_descriptions hejlib)
	target_link_libraries(test_scale_arithmetics hejlib)

	## add tests
	add_test(
	NAME t_classify
	COMMAND test_classify ${tst_dir}/classify.lhe.gz
	)
	add_test(
	NAME t_psp
	COMMAND test_psp ${tst_dir}/psp_gen.lhe.gz
	)
	set(tst_ME_data_dir "${tst_dir}/ME_data")
	add_test(
	NAME t_ME_j
	COMMAND test_ME_generic ${tst_ME_data_dir}/config_mtinf.yml ${tst_ME_data_dir}/ME_jets.dat ${tst_ME_data_dir}/PSP_jets.lhe.gz
	)
	add_test(
	NAME t_ME_h
	COMMAND test_ME_generic ${tst_ME_data_dir}/config_mtinf.yml ${tst_ME_data_dir}/ME_h_mtinf.dat ${tst_ME_data_dir}/PSP_h.lhe.gz
	)
	if(${QCDloop_FOUND})
	add_test(
	NAME t_ME_h_mt
	COMMAND test_ME_generic ${tst_ME_data_dir}/config_mt.yml ${tst_ME_data_dir}/ME_h_mt.dat ${tst_ME_data_dir}/PSP_h.lhe.gz
	)
	add_test(
	NAME t_ME_h_mtmb
	COMMAND test_ME_generic ${tst_ME_data_dir}/config_mtmb.yml ${tst_ME_data_dir}/ME_h_mtmb.dat ${tst_ME_data_dir}/PSP_h.lhe.gz
	)
	endif()
	add_test(
	NAME t_2j
	COMMAND check_res ${tst_dir}/2j.lhe.gz 3.49391e+07 419684
	)
	add_test(
	NAME t_3j
	COMMAND check_res ${tst_dir}/3j.lhe.gz 2.37902e+06 25746.6
	)
	add_test(
	NAME t_4j
	COMMAND check_res ${tst_dir}/4j.lhe.gz 603713 72822.6
	)
	add_test(
	NAME t_h_3j
	COMMAND check_res ${tst_dir}/h_3j.lhe.gz 0.821622 0.0220334
	)
	add_test(
	NAME t_h_3j_uno
	COMMAND check_res ${tst_dir}/h_3j_uno.lhe.gz 0.0261968 0.000341549 uno
	)
	if(${HepMC_FOUND})
	file(READ "${tst_dir}/jet_config.yml" config)
	file(WRITE "${tst_dir}/jet_config_withHepMC.yml" "${config} - tst.hepmc")
	if(${rivet_FOUND})
	file(READ "${tst_dir}/jet_config_withHepMC.yml" config)
	file(WRITE "${tst_dir}/jet_config_withRivet.yml" "${config}\n\nanalysis:\n rivet: MC_XS\n output: tst")
	add_test(
	NAME t_main
	COMMAND HEJ ${tst_dir}/jet_config_withRivet.yml ${tst_dir}/2j.lhe.gz
	)
	else()
	add_test(
	NAME t_main
	COMMAND HEJ ${tst_dir}/jet_config_withHepMC.yml ${tst_dir}/2j.lhe.gz
	)
	endif()
	if(${HepMC_VERSION_MAJOR} GREATER 2)
	add_executable(check_hepmc ${tst_dir}/check_hepmc.cc)
	target_link_libraries(check_hepmc hejlib)
	add_test(
	NAME t_hepmc
	COMMAND check_hepmc tst.hepmc
	)
	endif()
	else()
	add_test(
	NAME t_main
	COMMAND HEJ ${tst_dir}/jet_config.yml ${tst_dir}/2j.lhe.gz
	)
	endif()
	add_test(
	NAME t_lhe
	COMMAND check_lhe tst.lhe
	)
	add_test(
	NAME t_scale_import
	COMMAND test_scale_import ${tst_dir}/jet_config_with_import.yml
	)
	add_test(
	NAME t_descriptions
	COMMAND test_descriptions
	)
	add_test(
	NAME t_scale_arithmetics
	COMMAND test_scale_arithmetics ${tst_dir}/jet_config.yml ${tst_dir}/2j.lhe.gz
	)
	diff --git a/Changes.md b/Changes.md
	index c6f80f7..d1f98d3 100644
	--- a/Changes.md
	+++ b/Changes.md
	@@ -1,23 +1,31 @@
	# Version 2.0

	## 2.X.0

	* Made `MatrixElement::tree_kin` and `MatrixElement::tree_param` public
	* Allow multiplication and division of multiple scale functions e.g.
	`H_T/2*m_j1j2`
	* Follow HepMC convention for particle Status codes: incoming = 11,
	decaying = 2, outgoing = 1 (unchanged)

	+## 2.0.4
	+
	+* Fixed wrong path of `HEJ_INCLUDE_DIR` in `hej-config.cmake`
	+* Correctly include rivet headers
	+* New `EXCLUDE_package` variable in `cmake` to not interface to specific
	+ packages
	+* Consistent search and include for side packages in `cmake`
	+
	## 2.0.3

	* Fixed parsing of (numerical factor) * (base scale) in configuration
	* Don't change scale names, but sanitise Rivet output file names instead

	## 2.0.2

	* Changed scale names to `"_over_"` and `"_times_"` for proper file names (was
	`"/"` and `"*"` before)

	## 2.0.1

	* Fixed name of fixed-order generator in error message.
	diff --git a/FixedOrderGen/CMakeLists.txt b/FixedOrderGen/CMakeLists.txt
	index 7c5f029..9a49b94 100644
	--- a/FixedOrderGen/CMakeLists.txt
	+++ b/FixedOrderGen/CMakeLists.txt
	@@ -1,122 +1,113 @@
	cmake_minimum_required(VERSION 3.1 FATAL_ERROR)

	set(CMAKE_LEGACY_CYGWIN_WIN32 0)
	set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

	-project("HEJ Fixed Order Generation" VERSION 2.0.3 LANGUAGES C CXX)
	+project("HEJ Fixed Order Generation" VERSION 2.0.4 LANGUAGES C CXX)

	# Set a default build type if none was specified
	set(default_build_type "RelWithDebInfo")

	if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
	message(STATUS "Setting build type to '${default_build_type}' as none was specified.")
	set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE
	STRING "Choose the type of build." FORCE)
	# Set the possible values of build type for cmake-gui
	set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
	"Debug" "Release" "MinSizeRel" "RelWithDebInfo")
	endif()

	## Flags for the compiler. No warning allowed.
	if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
	elseif (MSVC)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX /EHsc")
	endif()
	set(CMAKE_CXX_STANDARD_REQUIRED ON)
	set(CMAKE_CXX_STANDARD 14)

	## Create Version
	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")


	# Get the latest abbreviated commit hash of the working branch
	execute_process(
	COMMAND git rev-parse HEAD
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
	OUTPUT_VARIABLE PROJECT_GIT_REVISION
	OUTPUT_STRIP_TRAILING_WHITESPACE
	)
	# Get the current working branch
	execute_process(
	COMMAND git rev-parse --abbrev-ref HEAD
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
	OUTPUT_VARIABLE PROJECT_GIT_BRANCH
	OUTPUT_STRIP_TRAILING_WHITESPACE
	)

	CONFIGURE_FILE( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Templates/Version.hh.in
	${PROJECT_BINARY_DIR}/include/Version.hh @ONLY )

	## Add directories and find dependences
	-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include ${PROJECT_BINARY_DIR}/include
	- ${CMAKE_CURRENT_SOURCE_DIR}/../include)
	+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include ${PROJECT_BINARY_DIR}/include)
	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/../cmake/Modules/")

	-find_package(HEJ REQUIRED)
	-include_directories(${HEJ_INCLUDE_PATH})
	+find_package(HEJ 2 REQUIRED)
	+include_directories(${HEJ_INCLUDE_DIR})
	find_package(fastjet REQUIRED)
	-include_directories(${fastjet_INCLUDE_PATH})
	-find_package(clhep 2.3 REQUIRED)
	-include_directories(${CLHEP_INCLUDE_PATH})
	-find_package(lhapdf REQUIRED)
	-include_directories(${lhapdf_INCLUDE_PATH})
	+include_directories(${fastjet_INCLUDE_DIRS})
	+find_package(CLHEP 2.3 REQUIRED)
	+include_directories(${CLHEP_INCLUDE_DIRS})
	+find_package(LHAPDF REQUIRED)
	+include_directories(${LHAPDF_INCLUDE_DIRS})
	## Amend unintuitive behaviour of FindBoost.cmake
	## Priority of BOOST_ROOT over BOOSTROOT matches FindBoost.cmake
	## at least for cmake 3.12
	if(DEFINED BOOST_ROOT)
	message("BOOST_ROOT set - only looking for Boost in ${BOOST_ROOT}")
	set(Boost_NO_BOOST_CMAKE ON)
	elseif(DEFINED BOOSTROOT)
	message("BOOSTROOT set - only looking for Boost in ${BOOSTROOT}")
	set(Boost_NO_BOOST_CMAKE ON)
	endif()
	find_package(Boost REQUIRED COMPONENTS iostreams)
	include_directories(${Boost_INCLUDE_DIRS})
	-find_package(yaml-cpp)
	+find_package(yaml-cpp) # requiring yaml does not work with fedora
	include_directories(${YAML_CPP_INCLUDE_DIR})
	-find_package(QCDloop 2)
	-if(${QCDloop_FOUND})
	- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DHEJ_BUILD_WITH_QCDLOOP")
	- include_directories(SYSTEM ${QCDloop_INCLUDE_DIRS})
	-endif()

	## define executable
	file(GLOB HEJFOG_source ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cc)
	list(REMOVE_ITEM HEJFOG_source ${CMAKE_CURRENT_SOURCE_DIR}/src/main.cc)
	add_library(hejfog STATIC ${HEJFOG_source})
	add_executable(HEJFOG ${CMAKE_CURRENT_SOURCE_DIR}/src/main.cc)

	## link libraries
	set(libraries ${CMAKE_DL_LIBS} ${LHAPDF_LIBRARIES} ${CLHEP_LIBRARIES}
	- ${FASTJET_LIBRARIES} ${Boost_LIBRARIES} ${YAML_CPP_LIBRARIES} ${HEJ_LIBRARIES})
	-if(${QCDloop_FOUND})
	- list(APPEND libraries ${QCDloop_LIBRARIES} quadmath)
	-endif()
	+ ${fastjet_LIBRARIES} ${Boost_LIBRARIES} ${YAML_CPP_LIBRARIES} ${HEJ_LIBRARIES})

	target_link_libraries(hejfog ${libraries})
	target_link_libraries(HEJFOG hejfog)

	install(TARGETS HEJFOG DESTINATION bin)

	## tests

	enable_testing()
	set(tst_dir "${CMAKE_CURRENT_SOURCE_DIR}/t")
	foreach(tst h_2j h_3j h_5j h_3j_uno1 h_3j_uno2 h_2j_decay 2j 4j)
	add_executable(test_${tst} ${tst_dir}/${tst}.cc)
	target_link_libraries(test_${tst} hejfog)
	add_test(NAME t_${tst} COMMAND test_${tst} WORKING_DIRECTORY ${tst_dir})
	endforeach()
	add_test(
	NAME t_main_2j
	COMMAND HEJFOG ${tst_dir}/config_2j.yml
	)
	add_test(
	NAME t_main_h2j
	COMMAND HEJFOG ${tst_dir}/config_h_2j.yml
	)
	add_test(
	NAME t_main_h2j_decay
	COMMAND HEJFOG ${tst_dir}/config_h_2j_decay.yml
	)
	diff --git a/cmake/Modules/FindCLHEP.cmake b/cmake/Modules/FindCLHEP.cmake
	new file mode 100644
	index 0000000..3f4e4cc
	--- /dev/null
	+++ b/cmake/Modules/FindCLHEP.cmake
	@@ -0,0 +1,219 @@
	+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
	+# file Copyright.txt or https://cmake.org/licensing for details.
	+# This is a slightly modified version of FindGSL.cmake taken from cmake 3.7
	+
	+#.rst:
	+# FindCLHEP
	+# --------
	+#
	+# Find the native CLHEP includes and libraries.
	+#
	+# CLHEP package is an object oriented, C++ event record for High Energy
	+# Physics Monte Carlo generators and simulation. It is free software
	+# under the GNU General Public License.
	+#
	+# Imported Targets
	+# ^^^^^^^^^^^^^^^^
	+#
	+# If CLHEP is found, this module defines the following
	+# :prop_tgt:`IMPORTED` target::
	+#
	+# CLHEP::CLHEP - The main CLHEP library.
	+#
	+# Result Variables
	+# ^^^^^^^^^^^^^^^^
	+#
	+# This module will set the following variables in your project::
	+#
	+# CLHEP_FOUND - True if CLHEP found on the local system
	+# CLHEP_INCLUDE_DIRS - Location of CLHEP header files.
	+# CLHEP_LIBRARIES - The CLHEP libraries.
	+# CLHEP_VERSION - The version of the discovered CLHEP install.
	+#
	+# Hints
	+# ^^^^^
	+#
	+# Set ``CLHEP_ROOT_DIR`` to a directory that contains a CLHEP installation.
	+#
	+# This script expects to find libraries at ``$CLHEP_ROOT_DIR/lib`` and the CLHEP
	+# headers at ``$CLHEP_ROOT_DIR/include/CLHEP``. The library directory may
	+# optionally provide Release and Debug folders. For Unix-like systems, this
	+# script will use ``$CLHEP_ROOT_DIR/bin/CLHEP-config`` (if found) to aid in the
	+# discovery CLHEP.
	+#
	+# Cache Variables
	+# ^^^^^^^^^^^^^^^
	+#
	+# This module may set the following variables depending on platform and type
	+# of CLHEP installation discovered. These variables may optionally be set to
	+# help this module find the correct files::
	+#
	+# CLHEP_CONFIG_EXECUTABLE - Location of the ``CLHEP-config`` script (if any).
	+# CLHEP_LIBRARY - Location of the CLHEP library.
	+# CLHEP_LIBRARY_DEBUG - Location of the debug CLHEP library (if any).
	+#
	+
	+# Include these modules to handle the QUIETLY and REQUIRED arguments.
	+include(FindPackageHandleStandardArgs)
	+
	+#=============================================================================
	+# If the user has provided ``CLHEP_ROOT_DIR``, use it! Choose items found
	+# at this location over system locations.
	+if( EXISTS "$ENV{CLHEP_ROOT_DIR}" )
	+ file( TO_CMAKE_PATH "$ENV{CLHEP_ROOT_DIR}" CLHEP_ROOT_DIR )
	+ set( CLHEP_ROOT_DIR "${CLHEP_ROOT_DIR}" CACHE PATH "Prefix for CLHEP installation." )
	+endif()
	+if( NOT EXISTS "${CLHEP_ROOT_DIR}" )
	+ set( CLHEP_USE_PKGCONFIG ON )
	+endif()
	+
	+#=============================================================================
	+# As a first try, use the PkgConfig module. This will work on many
	+# *NIX systems. See :module:`findpkgconfig`
	+# This will return ``CLHEP_INCLUDEDIR`` and ``CLHEP_LIBDIR`` used below.
	+if( CLHEP_USE_PKGCONFIG )
	+ find_package(PkgConfig)
	+ pkg_check_modules( CLHEP QUIET CLHEP )
	+
	+ if( EXISTS "${CLHEP_INCLUDEDIR}" )
	+ get_filename_component( CLHEP_ROOT_DIR "${CLHEP_INCLUDEDIR}" DIRECTORY CACHE)
	+ endif()
	+endif()
	+
	+#=============================================================================
	+# Set CLHEP_INCLUDE_DIRS and CLHEP_LIBRARIES. If we skipped the PkgConfig step, try
	+# to find the libraries at $CLHEP_ROOT_DIR (if provided), in the directory
	+# suggested by CLHEP-config (if available), or in standard system
	+# locations. These find_library and find_path calls will prefer custom
	+# locations over standard locations (HINTS). If the requested file is found
	+# neither at the HINTS location nor via CLHEP-config, standard system locations
	+# will be still be searched (/usr/lib64 (Redhat), lib/i386-linux-gnu (Debian)).
	+
	+# If we didn't use PkgConfig, try to find the version via CLHEP-config
	+if( NOT CLHEP_VERSION )
	+ find_program( CLHEP_CONFIG_EXECUTABLE
	+ NAMES clhep-config
	+ HINTS "${CLHEP_ROOT_DIR}/bin"
	+ )
	+ if( EXISTS "${CLHEP_CONFIG_EXECUTABLE}" )
	+ execute_process(
	+ COMMAND "${CLHEP_CONFIG_EXECUTABLE}" --version
	+ OUTPUT_VARIABLE CLHEP_VERSION
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ string(REGEX REPLACE "CLHEP " "" CLHEP_VERSION ${CLHEP_VERSION})
	+ execute_process(
	+ COMMAND "${CLHEP_CONFIG_EXECUTABLE}" --prefix
	+ OUTPUT_VARIABLE CLHEP_CONFIG_ROOT_DIR
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ string (REGEX REPLACE "\"$.$\"[ \t\r\n]$" "\\1"
	+ CLHEP_CONFIG_ROOT_DIR ${CLHEP_CONFIG_ROOT_DIR} )
	+ set(CLHEP_CONFIG_INCLUDEDIR ${CLHEP_CONFIG_ROOT_DIR}/include)
	+ set(CLHEP_CONFIG_LIBDIR ${CLHEP_CONFIG_ROOT_DIR}/lib)
	+ endif()
	+endif()
	+find_path( CLHEP_INCLUDE_DIR
	+ NAMES CLHEP/ClhepVersion.h
	+ HINTS ${CLHEP_ROOT_DIR}/include ${CLHEP_INCLUDEDIR} ${CLHEP_CONFIG_INCLUDEDIR}
	+)
	+find_library( CLHEP_LIBRARY
	+ NAMES CLHEP
	+ HINTS ${CLHEP_ROOT_DIR}/lib ${CLHEP_LIBDIR} ${CLHEP_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Release Debug
	+)
	+# Do we also have debug versions?
	+find_library( CLHEP_LIBRARY_DEBUG
	+ NAMES CLHEP
	+ HINTS ${CLHEP_ROOT_DIR}/lib ${CLHEP_LIBDIR} ${CLHEP_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Debug
	+)
	+set( CLHEP_INCLUDE_DIRS ${CLHEP_INCLUDE_DIR} )
	+set( CLHEP_LIBRARIES ${CLHEP_LIBRARY} )
	+
	+if( NOT CLHEP_VERSION )
	+ if(IS_DIRECTORY ${CLHEP_INCLUDE_DIR})
	+ file(STRINGS "${CLHEP_INCLUDE_DIR}/CLHEP/ClhepVersion.h" _CLHEP_VERS)
	+ string(
	+ REGEX MATCH
	+ "static std::string String\$\$ { return \"[^\"]\""
	+ _CLHEP_VERSION_STR "${_CLHEP_VERS}"
	+ )
	+ message(STATUS "_CLHEP_VERSION_STR ${_CLHEP_VERSION_STR}")
	+ string(
	+ REGEX MATCH
	+ "[0-9]\\.[0-9]\\.[0-9]\\.[0-9]"
	+ CLHEP_VERSION ${_CLHEP_VERSION_STR}
	+ )
	+ endif()
	+endif()
	+if( CLHEP_VERSION )
	+ string(REPLACE "." ";" t_list ${CLHEP_VERSION})
	+ list(APPEND t_list 0 0) # add a buffer in case supversion not set
	+ list(GET t_list 0 CLHEP_VERSION_MAJOR)
	+ list(GET t_list 1 CLHEP_VERSION_MINOR)
	+ list(GET t_list 2 CLHEP_VERSION_PATCH)
	+endif()
	+#=============================================================================
	+# handle the QUIETLY and REQUIRED arguments and set CLHEP_FOUND to TRUE if all
	+# listed variables are TRUE
	+find_package_handle_standard_args( CLHEP
	+ FOUND_VAR
	+ CLHEP_FOUND
	+ REQUIRED_VARS
	+ CLHEP_INCLUDE_DIR
	+ CLHEP_LIBRARY
	+ VERSION_VAR
	+ CLHEP_VERSION
	+ )
	+
	+mark_as_advanced( CLHEP_ROOT_DIR CLHEP_VERSION CLHEP_LIBRARY CLHEP_INCLUDE_DIR
	+ CLHEP_LIBRARY_DEBUG CLHEP_USE_PKGCONFIG CLHEP_CONFIG )
	+
	+#=============================================================================
	+# Register imported libraries:
	+# 1. If we can find a Windows .dll file (or if we can find both Debug and
	+# Release libraries), we will set appropriate target properties for these.
	+# 2. However, for most systems, we will only register the import location and
	+# include directory.
	+
	+# Look for dlls, or Release and Debug libraries.
	+if(WIN32)
	+ string( REPLACE ".lib" ".dll" CLHEP_LIBRARY_DLL "${CLHEP_LIBRARY}" )
	+ string( REPLACE ".lib" ".dll" CLHEP_LIBRARY_DEBUG_DLL "${CLHEP_LIBRARY_DEBUG}" )
	+endif()
	+
	+if( CLHEP_FOUND AND NOT TARGET CLHEP::CLHEP )
	+ if( EXISTS "${CLHEP_LIBRARY_DLL}")
	+
	+ # Windows systems with dll libraries.
	+ add_library( CLHEP::CLHEP SHARED IMPORTED )
	+ add_library( CLHEP::CLHEPcblas SHARED IMPORTED )
	+
	+ # Windows with dlls, but only Release libraries.
	+ set_target_properties( CLHEP::CLHEP PROPERTIES
	+ IMPORTED_LOCATION_RELEASE "${CLHEP_LIBRARY_DLL}"
	+ IMPORTED_IMPLIB "${CLHEP_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${CLHEP_INCLUDE_DIRS}"
	+ IMPORTED_CONFIGURATIONS Release
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )
	+
	+ # If we have both Debug and Release libraries
	+ if( EXISTS "${CLHEP_LIBRARY_DEBUG_DLL}")
	+ set_property( TARGET CLHEP::CLHEP APPEND PROPERTY IMPORTED_CONFIGURATIONS Debug )
	+ set_target_properties( CLHEP::CLHEP PROPERTIES
	+ IMPORTED_LOCATION_DEBUG "${CLHEP_LIBRARY_DEBUG_DLL}"
	+ IMPORTED_IMPLIB_DEBUG "${CLHEP_LIBRARY_DEBUG}" )
	+ endif()
	+
	+ else()
	+
	+ # For all other environments (ones without dll libraries), create
	+ # the imported library targets.
	+ add_library( CLHEP::CLHEP UNKNOWN IMPORTED )
	+ set_target_properties( CLHEP::CLHEP PROPERTIES
	+ IMPORTED_LOCATION "${CLHEP_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${CLHEP_INCLUDE_DIRS}"
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )
	+ endif()
	+endif()
	diff --git a/cmake/Modules/FindHepMC.cmake b/cmake/Modules/FindHepMC.cmake
	index a311f15..6c5d8d3 100644
	--- a/cmake/Modules/FindHepMC.cmake
	+++ b/cmake/Modules/FindHepMC.cmake
	@@ -1,218 +1,218 @@
	# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
	# file Copyright.txt or https://cmake.org/licensing for details.
	# This is a slightly modified version of FindGSL.cmake taken from cmake 3.7

	#.rst:
	# FindHepMC
	# --------
	#
	# Find the native HepMC includes and libraries.
	#
	# HepMC package is an object oriented, C++ event record for High Energy
	# Physics Monte Carlo generators and simulation. It is free software
	# under the GNU General Public License.
	#
	# Imported Targets
	# ^^^^^^^^^^^^^^^^
	#
	# If HepMC is found, this module defines the following
	# :prop_tgt:`IMPORTED` target::
	#
	# HepMC::HepMC - The main HepMC library.
	#
	# Result Variables
	# ^^^^^^^^^^^^^^^^
	#
	# This module will set the following variables in your project::
	#
	# HepMC_FOUND - True if HepMC found on the local system
	# HepMC_INCLUDE_DIRS - Location of HepMC header files.
	# HepMC_LIBRARIES - The HepMC libraries.
	# HepMC_VERSION - The version of the discovered HepMC install.
	#
	# Hints
	# ^^^^^
	#
	# Set ``HepMC_ROOT_DIR`` to a directory that contains a HepMC installation.
	#
	# This script expects to find libraries at ``$HepMC_ROOT_DIR/lib`` and the HepMC
	# headers at ``$HepMC_ROOT_DIR/include/HepMC``. The library directory may
	# optionally provide Release and Debug folders. For Unix-like systems, this
	# script will use ``$HepMC_ROOT_DIR/bin/HepMC-config`` (if found) to aid in the
	# discovery HepMC.
	#
	# Cache Variables
	# ^^^^^^^^^^^^^^^
	#
	# This module may set the following variables depending on platform and type
	# of HepMC installation discovered. These variables may optionally be set to
	# help this module find the correct files::
	#
	# HepMC_CONFIG_EXECUTABLE - Location of the ``HepMC-config`` script (if any).
	# HepMC_LIBRARY - Location of the HepMC library.
	# HepMC_LIBRARY_DEBUG - Location of the debug HepMC library (if any).
	#

	# Include these modules to handle the QUIETLY and REQUIRED arguments.
	include(FindPackageHandleStandardArgs)

	#=============================================================================
	# If the user has provided ``HepMC_ROOT_DIR``, use it! Choose items found
	# at this location over system locations.
	if( EXISTS "$ENV{HepMC_ROOT_DIR}" )
	file( TO_CMAKE_PATH "$ENV{HepMC_ROOT_DIR}" HepMC_ROOT_DIR )
	set( HepMC_ROOT_DIR "${HepMC_ROOT_DIR}" CACHE PATH "Prefix for HepMC installation." )
	endif()
	if( NOT EXISTS "${HepMC_ROOT_DIR}" )
	set( HepMC_USE_PKGCONFIG ON )
	endif()

	#=============================================================================
	# As a first try, use the PkgConfig module. This will work on many
	# *NIX systems. See :module:`findpkgconfig`
	# This will return ``HepMC_INCLUDEDIR`` and ``HepMC_LIBDIR`` used below.
	if( HepMC_USE_PKGCONFIG )
	find_package(PkgConfig)
	pkg_check_modules( HepMC QUIET HepMC )

	if( EXISTS "${HepMC_INCLUDEDIR}" )
	get_filename_component( HepMC_ROOT_DIR "${HepMC_INCLUDEDIR}" DIRECTORY CACHE)
	endif()
	endif()

	#=============================================================================
	# Set HepMC_INCLUDE_DIRS and HepMC_LIBRARIES. If we skipped the PkgConfig step, try
	# to find the libraries at $HepMC_ROOT_DIR (if provided), in the directory
	# suggested by HepMC-config (if available), or in standard system
	# locations. These find_library and find_path calls will prefer custom
	# locations over standard locations (HINTS). If the requested file is found
	# neither at the HINTS location nor via HepMC-config, standard system locations
	# will be still be searched (/usr/lib64 (Redhat), lib/i386-linux-gnu (Debian)).

	# If we didn't use PkgConfig, try to find the version via HepMC-config
	if( NOT HepMC_VERSION )
	find_program( HepMC_CONFIG_EXECUTABLE
	NAMES HepMC-config
	HINTS "${HepMC_ROOT_DIR}/bin"
	)
	if( EXISTS "${HepMC_CONFIG_EXECUTABLE}" )
	execute_process(
	COMMAND "${HepMC_CONFIG_EXECUTABLE}" --version
	OUTPUT_VARIABLE HepMC_VERSION
	OUTPUT_STRIP_TRAILING_WHITESPACE )
	execute_process(
	COMMAND "${HepMC_CONFIG_EXECUTABLE}" --incdir
	OUTPUT_VARIABLE HepMC_CONFIG_INCLUDEDIR
	OUTPUT_STRIP_TRAILING_WHITESPACE )
	execute_process(
	COMMAND "${HepMC_CONFIG_EXECUTABLE}" --libdir
	OUTPUT_VARIABLE HepMC_CONFIG_LIBDIR
	OUTPUT_STRIP_TRAILING_WHITESPACE )
	endif()
	endif()
	find_path( HepMC_INCLUDE_DIR
	- NAMES HepMC/HepMC.h HepMC/HepMCDefs.h
	+ NAMES HepMC/HepMCDefs.h
	HINTS ${HepMC_ROOT_DIR}/include ${HepMC_INCLUDEDIR} ${HepMC_CONFIG_INCLUDEDIR}
	)
	find_library( HepMC_LIBRARY
	NAMES HepMC
	HINTS ${HepMC_ROOT_DIR}/lib ${HepMC_LIBDIR} ${HepMC_CONFIG_LIBDIR}
	PATH_SUFFIXES Release Debug
	)
	# Do we also have debug versions?
	find_library( HepMC_LIBRARY_DEBUG
	NAMES HepMC
	HINTS ${HepMC_ROOT_DIR}/lib ${HepMC_LIBDIR} ${HepMC_CONFIG_LIBDIR}
	PATH_SUFFIXES Debug
	)
	set( HepMC_INCLUDE_DIRS ${HepMC_INCLUDE_DIR} )
	set( HepMC_LIBRARIES ${HepMC_LIBRARY} )

	if( NOT HepMC_VERSION )
	if(IS_DIRECTORY ${HepMC_INCLUDE_DIR})
	file(STRINGS "${HepMC_INCLUDE_DIR}/HepMC/HepMCDefs.h" _HepMC_DEFS)
	file(STRINGS "${HepMC_INCLUDE_DIR}/HepMC/Version.h" _HepMC_VERS)
	string(
	REGEX MATCH
	"#define HEPMC_VERSION \"[^\"]*\""
	_HepMC_VERSION_STR "${_HepMC_DEFS} ${_HepMC_VERS}"
	)
	string(
	REGEX MATCH
	"[0-9]\\.[0-9]\\.[0-9]*"
	HepMC_VERSION ${_HepMC_VERSION_STR}
	)
	endif()
	endif()
	if( HepMC_VERSION )
	string(REPLACE "." ";" t_list ${HepMC_VERSION})
	list(APPEND t_list 0 0) # add a buffer in case supversion not set
	list(GET t_list 0 HepMC_VERSION_MAJOR)
	list(GET t_list 1 HepMC_VERSION_MINOR)
	list(GET t_list 2 HepMC_VERSION_PATCH)
	endif()
	#=============================================================================
	# handle the QUIETLY and REQUIRED arguments and set HepMC_FOUND to TRUE if all
	# listed variables are TRUE
	find_package_handle_standard_args( HepMC
	FOUND_VAR
	HepMC_FOUND
	REQUIRED_VARS
	HepMC_INCLUDE_DIR
	HepMC_LIBRARY
	VERSION_VAR
	HepMC_VERSION
	)

	mark_as_advanced( HepMC_ROOT_DIR HepMC_VERSION HepMC_LIBRARY HepMC_INCLUDE_DIR
	HepMC_LIBRARY_DEBUG HepMC_USE_PKGCONFIG HepMC_CONFIG )

	#=============================================================================
	# Register imported libraries:
	# 1. If we can find a Windows .dll file (or if we can find both Debug and
	# Release libraries), we will set appropriate target properties for these.
	# 2. However, for most systems, we will only register the import location and
	# include directory.

	# Look for dlls, or Release and Debug libraries.
	if(WIN32)
	string( REPLACE ".lib" ".dll" HepMC_LIBRARY_DLL "${HepMC_LIBRARY}" )
	string( REPLACE ".lib" ".dll" HepMC_LIBRARY_DEBUG_DLL "${HepMC_LIBRARY_DEBUG}" )
	endif()

	if( HepMC_FOUND AND NOT TARGET HepMC::HepMC )
	if( EXISTS "${HepMC_LIBRARY_DLL}")

	# Windows systems with dll libraries.
	add_library( HepMC::HepMC SHARED IMPORTED )
	add_library( HepMC::HepMCcblas SHARED IMPORTED )

	# Windows with dlls, but only Release libraries.
	set_target_properties( HepMC::HepMC PROPERTIES
	IMPORTED_LOCATION_RELEASE "${HepMC_LIBRARY_DLL}"
	IMPORTED_IMPLIB "${HepMC_LIBRARY}"
	INTERFACE_INCLUDE_DIRECTORIES "${HepMC_INCLUDE_DIRS}"
	IMPORTED_CONFIGURATIONS Release
	IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	)

	# If we have both Debug and Release libraries
	if( EXISTS "${HepMC_LIBRARY_DEBUG_DLL}")
	set_property( TARGET HepMC::HepMC APPEND PROPERTY IMPORTED_CONFIGURATIONS Debug )
	set_target_properties( HepMC::HepMC PROPERTIES
	IMPORTED_LOCATION_DEBUG "${HepMC_LIBRARY_DEBUG_DLL}"
	IMPORTED_IMPLIB_DEBUG "${HepMC_LIBRARY_DEBUG}" )
	endif()

	else()

	# For all other environments (ones without dll libraries), create
	# the imported library targets.
	add_library( HepMC::HepMC UNKNOWN IMPORTED )
	set_target_properties( HepMC::HepMC PROPERTIES
	IMPORTED_LOCATION "${HepMC_LIBRARY}"
	INTERFACE_INCLUDE_DIRECTORIES "${HepMC_INCLUDE_DIRS}"
	IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	)
	endif()
	endif()
	diff --git a/cmake/Modules/FindLHAPDF.cmake b/cmake/Modules/FindLHAPDF.cmake
	new file mode 100644
	index 0000000..4df57a3
	--- /dev/null
	+++ b/cmake/Modules/FindLHAPDF.cmake
	@@ -0,0 +1,217 @@
	+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
	+# file Copyright.txt or https://cmake.org/licensing for details.
	+# This is a slightly modified version of FindGSL.cmake taken from cmake 3.7
	+
	+#.rst:
	+# FindLHAPDF
	+# --------
	+#
	+# Find the native LHAPDF includes and libraries.
	+#
	+# LHAPDF package is an object oriented, C++ event record for High Energy
	+# Physics Monte Carlo generators and simulation. It is free software
	+# under the GNU General Public License.
	+#
	+# Imported Targets
	+# ^^^^^^^^^^^^^^^^
	+#
	+# If LHAPDF is found, this module defines the following
	+# :prop_tgt:`IMPORTED` target::
	+#
	+# LHAPDF::LHAPDF - The main LHAPDF library.
	+#
	+# Result Variables
	+# ^^^^^^^^^^^^^^^^
	+#
	+# This module will set the following variables in your project::
	+#
	+# LHAPDF_FOUND - True if LHAPDF found on the local system
	+# LHAPDF_INCLUDE_DIRS - Location of LHAPDF header files.
	+# LHAPDF_LIBRARIES - The LHAPDF libraries.
	+# LHAPDF_VERSION - The version of the discovered LHAPDF install.
	+#
	+# Hints
	+# ^^^^^
	+#
	+# Set ``LHAPDF_ROOT_DIR`` to a directory that contains a LHAPDF installation.
	+#
	+# This script expects to find libraries at ``$LHAPDF_ROOT_DIR/lib`` and the LHAPDF
	+# headers at ``$LHAPDF_ROOT_DIR/include/LHAPDF``. The library directory may
	+# optionally provide Release and Debug folders. For Unix-like systems, this
	+# script will use ``$LHAPDF_ROOT_DIR/bin/LHAPDF-config`` (if found) to aid in the
	+# discovery LHAPDF.
	+#
	+# Cache Variables
	+# ^^^^^^^^^^^^^^^
	+#
	+# This module may set the following variables depending on platform and type
	+# of LHAPDF installation discovered. These variables may optionally be set to
	+# help this module find the correct files::
	+#
	+# LHAPDF_CONFIG_EXECUTABLE - Location of the ``LHAPDF-config`` script (if any).
	+# LHAPDF_LIBRARY - Location of the LHAPDF library.
	+# LHAPDF_LIBRARY_DEBUG - Location of the debug LHAPDF library (if any).
	+#
	+
	+# Include these modules to handle the QUIETLY and REQUIRED arguments.
	+include(FindPackageHandleStandardArgs)
	+
	+#=============================================================================
	+# If the user has provided ``LHAPDF_ROOT_DIR``, use it! Choose items found
	+# at this location over system locations.
	+if( EXISTS "$ENV{LHAPDF_ROOT_DIR}" )
	+ file( TO_CMAKE_PATH "$ENV{LHAPDF_ROOT_DIR}" LHAPDF_ROOT_DIR )
	+ set( LHAPDF_ROOT_DIR "${LHAPDF_ROOT_DIR}" CACHE PATH "Prefix for LHAPDF installation." )
	+endif()
	+if( NOT EXISTS "${LHAPDF_ROOT_DIR}" )
	+ set( LHAPDF_USE_PKGCONFIG ON )
	+endif()
	+
	+#=============================================================================
	+# As a first try, use the PkgConfig module. This will work on many
	+# *NIX systems. See :module:`findpkgconfig`
	+# This will return ``LHAPDF_INCLUDEDIR`` and ``LHAPDF_LIBDIR`` used below.
	+if( LHAPDF_USE_PKGCONFIG )
	+ find_package(PkgConfig)
	+ pkg_check_modules( LHAPDF QUIET LHAPDF )
	+
	+ if( EXISTS "${LHAPDF_INCLUDEDIR}" )
	+ get_filename_component( LHAPDF_ROOT_DIR "${LHAPDF_INCLUDEDIR}" DIRECTORY CACHE)
	+ endif()
	+endif()
	+
	+#=============================================================================
	+# Set LHAPDF_INCLUDE_DIRS and LHAPDF_LIBRARIES. If we skipped the PkgConfig step, try
	+# to find the libraries at $LHAPDF_ROOT_DIR (if provided), in the directory
	+# suggested by LHAPDF-config (if available), or in standard system
	+# locations. These find_library and find_path calls will prefer custom
	+# locations over standard locations (HINTS). If the requested file is found
	+# neither at the HINTS location nor via LHAPDF-config, standard system locations
	+# will be still be searched (/usr/lib64 (Redhat), lib/i386-linux-gnu (Debian)).
	+
	+# If we didn't use PkgConfig, try to find the version via LHAPDF-config
	+if( NOT LHAPDF_VERSION )
	+ find_program( LHAPDF_CONFIG_EXECUTABLE
	+ NAMES lhapdf-config
	+ HINTS "${LHAPDF_ROOT_DIR}/bin"
	+ )
	+ if( EXISTS "${LHAPDF_CONFIG_EXECUTABLE}" )
	+ execute_process(
	+ COMMAND "${LHAPDF_CONFIG_EXECUTABLE}" --version
	+ OUTPUT_VARIABLE LHAPDF_VERSION
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ execute_process(
	+ COMMAND "${LHAPDF_CONFIG_EXECUTABLE}" --incdir
	+ OUTPUT_VARIABLE LHAPDF_CONFIG_INCLUDEDIR
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ execute_process(
	+ COMMAND "${LHAPDF_CONFIG_EXECUTABLE}" --libdir
	+ OUTPUT_VARIABLE LHAPDF_CONFIG_LIBDIR
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ endif()
	+endif()
	+find_path( LHAPDF_INCLUDE_DIR
	+ NAMES LHAPDF/LHAPDF.h LHAPDF/Version.h
	+ HINTS ${LHAPDF_ROOT_DIR}/include ${LHAPDF_INCLUDEDIR} ${LHAPDF_CONFIG_INCLUDEDIR}
	+)
	+find_library( LHAPDF_LIBRARY
	+ NAMES LHAPDF
	+ HINTS ${LHAPDF_ROOT_DIR}/lib ${LHAPDF_LIBDIR} ${LHAPDF_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Release Debug
	+)
	+# Do we also have debug versions?
	+find_library( LHAPDF_LIBRARY_DEBUG
	+ NAMES LHAPDF
	+ HINTS ${LHAPDF_ROOT_DIR}/lib ${LHAPDF_LIBDIR} ${LHAPDF_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Debug
	+)
	+set( LHAPDF_INCLUDE_DIRS ${LHAPDF_INCLUDE_DIR} )
	+set( LHAPDF_LIBRARIES ${LHAPDF_LIBRARY} )
	+
	+if( NOT LHAPDF_VERSION )
	+ if(IS_DIRECTORY ${LHAPDF_INCLUDE_DIR})
	+ file(STRINGS "${LHAPDF_INCLUDE_DIR}/LHAPDF/Version.h" _LHAPDF_VERS)
	+ string(
	+ REGEX MATCH
	+ "#define LHAPDF_VERSION \"[^\"]*\""
	+ _LHAPDF_VERSION_STR "${_LHAPDF_VERS}"
	+ )
	+ string(
	+ REGEX MATCH
	+ "[0-9]\\.[0-9]\\.[0-9]*"
	+ LHAPDF_VERSION ${_LHAPDF_VERSION_STR}
	+ )
	+ endif()
	+endif()
	+if( LHAPDF_VERSION )
	+ string(REPLACE "." ";" t_list ${LHAPDF_VERSION})
	+ list(APPEND t_list 0 0) # add a buffer in case supversion not set
	+ list(GET t_list 0 LHAPDF_VERSION_MAJOR)
	+ list(GET t_list 1 LHAPDF_VERSION_MINOR)
	+ list(GET t_list 2 LHAPDF_VERSION_PATCH)
	+endif()
	+#=============================================================================
	+# handle the QUIETLY and REQUIRED arguments and set LHAPDF_FOUND to TRUE if all
	+# listed variables are TRUE
	+find_package_handle_standard_args( LHAPDF
	+ FOUND_VAR
	+ LHAPDF_FOUND
	+ REQUIRED_VARS
	+ LHAPDF_INCLUDE_DIR
	+ LHAPDF_LIBRARY
	+ VERSION_VAR
	+ LHAPDF_VERSION
	+ )
	+
	+mark_as_advanced( LHAPDF_ROOT_DIR LHAPDF_VERSION LHAPDF_LIBRARY LHAPDF_INCLUDE_DIR
	+ LHAPDF_LIBRARY_DEBUG LHAPDF_USE_PKGCONFIG LHAPDF_CONFIG )
	+
	+#=============================================================================
	+# Register imported libraries:
	+# 1. If we can find a Windows .dll file (or if we can find both Debug and
	+# Release libraries), we will set appropriate target properties for these.
	+# 2. However, for most systems, we will only register the import location and
	+# include directory.
	+
	+# Look for dlls, or Release and Debug libraries.
	+if(WIN32)
	+ string( REPLACE ".lib" ".dll" LHAPDF_LIBRARY_DLL "${LHAPDF_LIBRARY}" )
	+ string( REPLACE ".lib" ".dll" LHAPDF_LIBRARY_DEBUG_DLL "${LHAPDF_LIBRARY_DEBUG}" )
	+endif()
	+
	+if( LHAPDF_FOUND AND NOT TARGET LHAPDF::LHAPDF )
	+ if( EXISTS "${LHAPDF_LIBRARY_DLL}")
	+
	+ # Windows systems with dll libraries.
	+ add_library( LHAPDF::LHAPDF SHARED IMPORTED )
	+ add_library( LHAPDF::LHAPDFcblas SHARED IMPORTED )
	+
	+ # Windows with dlls, but only Release libraries.
	+ set_target_properties( LHAPDF::LHAPDF PROPERTIES
	+ IMPORTED_LOCATION_RELEASE "${LHAPDF_LIBRARY_DLL}"
	+ IMPORTED_IMPLIB "${LHAPDF_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${LHAPDF_INCLUDE_DIRS}"
	+ IMPORTED_CONFIGURATIONS Release
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )
	+
	+ # If we have both Debug and Release libraries
	+ if( EXISTS "${LHAPDF_LIBRARY_DEBUG_DLL}")
	+ set_property( TARGET LHAPDF::LHAPDF APPEND PROPERTY IMPORTED_CONFIGURATIONS Debug )
	+ set_target_properties( LHAPDF::LHAPDF PROPERTIES
	+ IMPORTED_LOCATION_DEBUG "${LHAPDF_LIBRARY_DEBUG_DLL}"
	+ IMPORTED_IMPLIB_DEBUG "${LHAPDF_LIBRARY_DEBUG}" )
	+ endif()
	+
	+ else()
	+
	+ # For all other environments (ones without dll libraries), create
	+ # the imported library targets.
	+ add_library( LHAPDF::LHAPDF UNKNOWN IMPORTED )
	+ set_target_properties( LHAPDF::LHAPDF PROPERTIES
	+ IMPORTED_LOCATION "${LHAPDF_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${LHAPDF_INCLUDE_DIRS}"
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )
	+ endif()
	+endif()
	diff --git a/cmake/Modules/Findclhep.cmake b/cmake/Modules/Findclhep.cmake
	deleted file mode 100644
	index 6e4943a..0000000
	--- a/cmake/Modules/Findclhep.cmake
	+++ /dev/null
	@@ -1,35 +0,0 @@
	-include (FindPackageMessage)
	-include(FindPackageHandleStandardArgs)
	-
	-message (STATUS "Detecting clhep installation")
	-execute_process (COMMAND clhep-config --prefix
	- OUTPUT_VARIABLE clhep_PREFIX
	- )
	-if (clhep_PREFIX)
	- string (REGEX REPLACE "\"$.$\"[ \t\r\n]$" "\\1" clhep_PREFIX ${clhep_PREFIX} )
	- message (STATUS "clhep installation found: ${clhep_PREFIX}")
	- EXECUTE_PROCESS(COMMAND clhep-config --libs OUTPUT_VARIABLE
	- CLHEP_LIBRARIES OUTPUT_STRIP_TRAILING_WHITESPACE)
	- EXECUTE_PROCESS(COMMAND clhep-config --version OUTPUT_VARIABLE
	- clhep_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
	- string(REGEX REPLACE "CLHEP " "" clhep_VERSION ${clhep_VERSION})
	- set (CLHEP_INCLUDE_PATH ${clhep_PREFIX}/include)
	- set (clhep_FOUND TRUE)
	-else (clhep_PREFIX)
	- set (clhep_FOUND FALSE)
	-endif (clhep_PREFIX)
	-
	-find_package_handle_standard_args(clhep
	- FOUND_VAR
	- clhep_FOUND
	- REQUIRED_VARS
	- CLHEP_INCLUDE_PATH
	- CLHEP_LIBRARIES
	- VERSION_VAR
	- clhep_VERSION
	- )
	-
	-mark_as_advanced(
	- CLHEP_INCLUDE_PATH
	- CLHEP_LIBRARIES
	-)
	diff --git a/cmake/Modules/Findfastjet.cmake b/cmake/Modules/Findfastjet.cmake
	index a7d9073..ba03935 100644
	--- a/cmake/Modules/Findfastjet.cmake
	+++ b/cmake/Modules/Findfastjet.cmake
	@@ -1,30 +1,216 @@
	-include (FindPackageMessage)
	-
	-message (STATUS "Detecting FastJet installation")
	-execute_process (COMMAND fastjet-config --prefix
	- OUTPUT_VARIABLE fastjet_PREFIX
	- )
	-if (fastjet_PREFIX)
	- string (STRIP ${fastjet_PREFIX} fastjet_PREFIX)
	- message (STATUS "FastJet installation found: ${fastjet_PREFIX}")
	- EXECUTE_PROCESS(COMMAND fastjet-config --libs OUTPUT_VARIABLE
	- FASTJET_LIBRARIES OUTPUT_STRIP_TRAILING_WHITESPACE)
	- # set (fastjet_LIBRARIES ${fastjet_LIBRARIES} )
	- set (fastjet_INCLUDE_PATH ${fastjet_PREFIX}/include)
	- set (fastjet_FOUND TRUE)
	-else (fastjet_PREFIX)
	- set (fastjet_FOUND FALSE)
	-endif (fastjet_PREFIX)
	-
	-if (NOT fastjet_FOUND)
	- message(FATAL_ERROR "FastJet installation not found!")
	-endif (NOT fastjet_FOUND)
	-
	-mark_as_advanced(
	- fastjet_INCLUDE_PATH
	- fastjet_LIBRARIES
	+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
	+# file Copyright.txt or https://cmake.org/licensing for details.
	+# This is a slightly modified version of FindGSL.cmake taken from cmake 3.7
	+
	+#.rst:
	+# Findfastjet
	+# --------
	+#
	+# Find the native fastjet includes and libraries.
	+#
	+# fastjet package is an object oriented, C++ event record for High Energy
	+# Physics Monte Carlo generators and simulation. It is free software
	+# under the GNU General Public License.
	+#
	+# Imported Targets
	+# ^^^^^^^^^^^^^^^^
	+#
	+# If fastjet is found, this module defines the following
	+# :prop_tgt:`IMPORTED` target::
	+#
	+# fastjet::fastjet - The main fastjet library.
	+#
	+# Result Variables
	+# ^^^^^^^^^^^^^^^^
	+#
	+# This module will set the following variables in your project::
	+#
	+# fastjet_FOUND - True if fastjet found on the local system
	+# fastjet_INCLUDE_DIRS - Location of fastjet header files.
	+# fastjet_LIBRARIES - The fastjet libraries.
	+# fastjet_VERSION - The version of the discovered fastjet install.
	+#
	+# Hints
	+# ^^^^^
	+#
	+# Set ``fastjet_ROOT_DIR`` to a directory that contains a fastjet installation.
	+#
	+# This script expects to find libraries at ``$fastjet_ROOT_DIR/lib`` and the fastjet
	+# headers at ``$fastjet_ROOT_DIR/include/fastjet``. The library directory may
	+# optionally provide Release and Debug folders. For Unix-like systems, this
	+# script will use ``$fastjet_ROOT_DIR/bin/fastjet-config`` (if found) to aid in the
	+# discovery fastjet.
	+#
	+# Cache Variables
	+# ^^^^^^^^^^^^^^^
	+#
	+# This module may set the following variables depending on platform and type
	+# of fastjet installation discovered. These variables may optionally be set to
	+# help this module find the correct files::
	+#
	+# fastjet_CONFIG_EXECUTABLE - Location of the ``fastjet-config`` script (if any).
	+# fastjet_LIBRARY - Location of the fastjet library.
	+# fastjet_LIBRARY_DEBUG - Location of the debug fastjet library (if any).
	+#
	+
	+# Include these modules to handle the QUIETLY and REQUIRED arguments.
	+include(FindPackageHandleStandardArgs)
	+
	+#=============================================================================
	+# If the user has provided ``fastjet_ROOT_DIR``, use it! Choose items found
	+# at this location over system locations.
	+if( EXISTS "$ENV{fastjet_ROOT_DIR}" )
	+ file( TO_CMAKE_PATH "$ENV{fastjet_ROOT_DIR}" fastjet_ROOT_DIR )
	+ set( fastjet_ROOT_DIR "${fastjet_ROOT_DIR}" CACHE PATH "Prefix for fastjet installation." )
	+endif()
	+if( NOT EXISTS "${fastjet_ROOT_DIR}" )
	+ set( fastjet_USE_PKGCONFIG ON )
	+endif()
	+
	+#=============================================================================
	+# As a first try, use the PkgConfig module. This will work on many
	+# *NIX systems. See :module:`findpkgconfig`
	+# This will return ``fastjet_INCLUDEDIR`` and ``fastjet_LIBDIR`` used below.
	+if( fastjet_USE_PKGCONFIG )
	+ find_package(PkgConfig)
	+ pkg_check_modules( fastjet QUIET fastjet )
	+
	+ if( EXISTS "${fastjet_INCLUDEDIR}" )
	+ get_filename_component( fastjet_ROOT_DIR "${fastjet_INCLUDEDIR}" DIRECTORY CACHE)
	+ endif()
	+endif()
	+
	+#=============================================================================
	+# Set fastjet_INCLUDE_DIRS and fastjet_LIBRARIES. If we skipped the PkgConfig step, try
	+# to find the libraries at $fastjet_ROOT_DIR (if provided), in the directory
	+# suggested by fastjet-config (if available), or in standard system
	+# locations. These find_library and find_path calls will prefer custom
	+# locations over standard locations (HINTS). If the requested file is found
	+# neither at the HINTS location nor via fastjet-config, standard system locations
	+# will be still be searched (/usr/lib64 (Redhat), lib/i386-linux-gnu (Debian)).
	+
	+# If we didn't use PkgConfig, try to find the version via fastjet-config
	+if( NOT fastjet_VERSION )
	+ find_program( fastjet_CONFIG_EXECUTABLE
	+ NAMES fastjet-config
	+ HINTS "${fastjet_ROOT_DIR}/bin"
	+ )
	+ if( EXISTS "${fastjet_CONFIG_EXECUTABLE}" )
	+ execute_process(
	+ COMMAND "${fastjet_CONFIG_EXECUTABLE}" --version
	+ OUTPUT_VARIABLE fastjet_VERSION
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ execute_process(
	+ COMMAND "${fastjet_CONFIG_EXECUTABLE}" --prefix
	+ OUTPUT_VARIABLE fastjet_CONFIG_ROOT_DIR
	+ OUTPUT_STRIP_TRAILING_WHITESPACE )
	+ set(fastjet_CONFIG_INCLUDEDIR ${fastjet_CONFIG_ROOT_DIR}/include)
	+ set(fastjet_CONFIG_LIBDIR ${fastjet_CONFIG_ROOT_DIR}/lib)
	+ endif()
	+endif()
	+find_path( fastjet_INCLUDE_DIR
	+ NAMES fastjet/config_auto.h fastjet/PseudoJet.hh
	+ HINTS ${fastjet_ROOT_DIR}/include ${fastjet_INCLUDEDIR} ${fastjet_CONFIG_INCLUDEDIR}
	+)
	+find_library( fastjet_LIBRARY
	+ NAMES fastjet
	+ HINTS ${fastjet_ROOT_DIR}/lib ${fastjet_LIBDIR} ${fastjet_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Release Debug
	)
	+# Do we also have debug versions?
	+find_library( fastjet_LIBRARY_DEBUG
	+ NAMES fastjet
	+ HINTS ${fastjet_ROOT_DIR}/lib ${fastjet_LIBDIR} ${fastjet_CONFIG_LIBDIR}
	+ PATH_SUFFIXES Debug
	+)
	+set( fastjet_INCLUDE_DIRS ${fastjet_INCLUDE_DIR} )
	+set( fastjet_LIBRARIES ${fastjet_LIBRARY} )
	+
	+if( NOT fastjet_VERSION )
	+ if(IS_DIRECTORY ${fastjet_INCLUDE_DIR})
	+ file(STRINGS "${fastjet_INCLUDE_DIR}/fastjet/config_auto.h" _fastjet_DEFS)
	+ file(STRINGS "${fastjet_INCLUDE_DIR}/fastjet/version.hh" _fastjet_VERS)
	+ string(
	+ REGEX MATCH
	+ "#define FASTJET_VERSION \"[^\"]*\""
	+ _fastjet_VERSION_STR "${_fastjet_VERS} ${_fastjet_DEFS}"
	+ )
	+ string(
	+ REGEX MATCH
	+ "[0-9]\\.[0-9]\\.[0-9]*"
	+ fastjet_VERSION ${_fastjet_VERSION_STR}
	+ )
	+ endif()
	+endif()
	+if( fastjet_VERSION )
	+ string(REPLACE "." ";" t_list ${fastjet_VERSION})
	+ list(APPEND t_list 0 0) # add a buffer in case supversion not set
	+ list(GET t_list 0 fastjet_VERSION_MAJOR)
	+ list(GET t_list 1 fastjet_VERSION_MINOR)
	+ list(GET t_list 2 fastjet_VERSION_PATCH)
	+endif()
	+#=============================================================================
	+# handle the QUIETLY and REQUIRED arguments and set fastjet_FOUND to TRUE if all
	+# listed variables are TRUE
	+find_package_handle_standard_args( fastjet
	+ FOUND_VAR
	+ fastjet_FOUND
	+ REQUIRED_VARS
	+ fastjet_INCLUDE_DIR
	+ fastjet_LIBRARY
	+ VERSION_VAR
	+ fastjet_VERSION
	+ )
	+
	+mark_as_advanced( fastjet_ROOT_DIR fastjet_VERSION fastjet_LIBRARY fastjet_INCLUDE_DIR
	+ fastjet_LIBRARY_DEBUG fastjet_USE_PKGCONFIG fastjet_CONFIG )
	+
	+#=============================================================================
	+# Register imported libraries:
	+# 1. If we can find a Windows .dll file (or if we can find both Debug and
	+# Release libraries), we will set appropriate target properties for these.
	+# 2. However, for most systems, we will only register the import location and
	+# include directory.
	+
	+# Look for dlls, or Release and Debug libraries.
	+if(WIN32)
	+ string( REPLACE ".lib" ".dll" fastjet_LIBRARY_DLL "${fastjet_LIBRARY}" )
	+ string( REPLACE ".lib" ".dll" fastjet_LIBRARY_DEBUG_DLL "${fastjet_LIBRARY_DEBUG}" )
	+endif()
	+
	+if( fastjet_FOUND AND NOT TARGET fastjet::fastjet )
	+ if( EXISTS "${fastjet_LIBRARY_DLL}")
	+
	+ # Windows systems with dll libraries.
	+ add_library( fastjet::fastjet SHARED IMPORTED )
	+ add_library( fastjet::fastjetcblas SHARED IMPORTED )

	+ # Windows with dlls, but only Release libraries.
	+ set_target_properties( fastjet::fastjet PROPERTIES
	+ IMPORTED_LOCATION_RELEASE "${fastjet_LIBRARY_DLL}"
	+ IMPORTED_IMPLIB "${fastjet_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${fastjet_INCLUDE_DIRS}"
	+ IMPORTED_CONFIGURATIONS Release
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )

	+ # If we have both Debug and Release libraries
	+ if( EXISTS "${fastjet_LIBRARY_DEBUG_DLL}")
	+ set_property( TARGET fastjet::fastjet APPEND PROPERTY IMPORTED_CONFIGURATIONS Debug )
	+ set_target_properties( fastjet::fastjet PROPERTIES
	+ IMPORTED_LOCATION_DEBUG "${fastjet_LIBRARY_DEBUG_DLL}"
	+ IMPORTED_IMPLIB_DEBUG "${fastjet_LIBRARY_DEBUG}" )
	+ endif()

	+ else()

	+ # For all other environments (ones without dll libraries), create
	+ # the imported library targets.
	+ add_library( fastjet::fastjet UNKNOWN IMPORTED )
	+ set_target_properties( fastjet::fastjet PROPERTIES
	+ IMPORTED_LOCATION "${fastjet_LIBRARY}"
	+ INTERFACE_INCLUDE_DIRECTORIES "${fastjet_INCLUDE_DIRS}"
	+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
	+ )
	+ endif()
	+endif()
	diff --git a/cmake/Modules/Findlhapdf.cmake b/cmake/Modules/Findlhapdf.cmake
	deleted file mode 100644
	index c8eb556..0000000
	--- a/cmake/Modules/Findlhapdf.cmake
	+++ /dev/null
	@@ -1,28 +0,0 @@
	-include (FindPackageMessage)
	-
	-message (STATUS "Detecting lhapdf installation")
	-execute_process (COMMAND lhapdf-config --prefix
	- OUTPUT_VARIABLE lhapdf_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE
	- )
	-if (lhapdf_PREFIX)
	- string (STRIP ${lhapdf_PREFIX} lhapdf_PREFIX)
	- message (STATUS "lhapdf installation found: ${lhapdf_PREFIX}")
	- EXECUTE_PROCESS(COMMAND lhapdf-config --ldflags OUTPUT_VARIABLE
	- LHAPDF_LIBRARIES OUTPUT_STRIP_TRAILING_WHITESPACE)
	- # set (lhapdf_LIBRARIES ${lhapdf_LIBRARIES} )
	- set (lhapdf_INCLUDE_PATH ${lhapdf_PREFIX}/include)
	- set (lhapdf_FOUND TRUE)
	-else (lhapdf_PREFIX)
	- set (lhapdf_FOUND FALSE)
	-endif (lhapdf_PREFIX)
	-
	-if (NOT lhapdf_FOUND)
	- message(FATAL_ERROR "lhapdf installation not found!")
	-endif (NOT lhapdf_FOUND)
	-
	-mark_as_advanced(
	- lhapdf_INCLUDE_PATH
	- lhapdf_LIBRARIES
	-)
	-
	-
	diff --git a/cmake/Templates/hej-config.cmake.in b/cmake/Templates/hej-config.cmake.in
	index a1a89e1..9c98a0e 100644
	--- a/cmake/Templates/hej-config.cmake.in
	+++ b/cmake/Templates/hej-config.cmake.in
	@@ -1,12 +1,12 @@
	@PACKAGE_INIT@

	# - Config file for the HEJ package
	# It defines the following variables
	# HEJ_INCLUDE_DIR - include directory
	# HEJ_LIBRARIES - libraries to link against

	-set_and_check(HEJ_INCLUDE_DIR "@INSTALL_INCLUDE_DIR_BASE@")
	+set_and_check(HEJ_INCLUDE_DIR @PACKAGE_INSTALL_INCLUDE_DIR_BASE@)

	find_library(HEJ_LIB NAMES HEJ HINTS @PACKAGE_INSTALL_LIB_DIR@)

	set(HEJ_LIBRARIES ${HEJ_LIB})
	diff --git a/doc/sphinx/conf.py b/doc/sphinx/conf.py
	index 2b87061..a9d958d 100644
	--- a/doc/sphinx/conf.py
	+++ b/doc/sphinx/conf.py
	@@ -1,175 +1,175 @@
	# -- coding: utf-8 --
	#
	# HEJ 2 documentation build configuration file, created by
	# sphinx-quickstart on Fri Sep 15 16:13:57 2017.
	#
	# This file is execfile()d with the current directory set to its
	# containing dir.
	#
	# Note that not all possible configuration values are present in this
	# autogenerated file.
	#
	# All configuration values have a default; values that are commented out
	# serve to show the default.

	# If extensions (or modules to document with autodoc) are in another directory,
	# add these directories to sys.path here. If the directory is relative to the
	# documentation root, use os.path.abspath to make it absolute, like shown here.
	#
	# import os
	# import sys
	# sys.path.insert(0, os.path.abspath('.'))


	# -- General configuration ------------------------------------------------

	# If your documentation needs a minimal Sphinx version, state it here.
	#
	# needs_sphinx = '1.0'

	# Add any Sphinx extension module names here, as strings. They can be
	# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
	# ones.
	extensions = ['sphinx.ext.mathjax',
	'sphinx.ext.githubpages']

	# Add any paths that contain templates here, relative to this directory.
	templates_path = ['_templates']

	# The suffix(es) of source filenames.
	# You can specify multiple suffix as a list of string:
	#
	# source_suffix = ['.rst', '.md']
	source_suffix = '.rst'

	# The master toctree document.
	master_doc = 'index'

	# General information about the project.
	project = u'HEJ 2'
	copyright = u'2017, Jeppe Andersen, Tuomas Hapola, Marian Heil, Andreas Maier, Jennifer Smillie'
	author = u'Jeppe Andersen, Tuomas Hapola, Marian Heil, Andreas Maier, Jennifer Smillie'

	# The version info for the project you're documenting, acts as replacement for
	# \|version\| and \|release\|, also used in various other places throughout the
	# built documents.
	#
	# The short X.Y version.
	version = u'2.0'
	# The full version, including alpha/beta/rc tags.
	-release = u'2.0.3'
	+release = u'2.0.4'

	# The language for content autogenerated by Sphinx. Refer to documentation
	# for a list of supported languages.
	#
	# This is also used if you do content translation via gettext catalogs.
	# Usually you set "language" from the command line for these cases.
	language = None

	# List of patterns, relative to source directory, that match files and
	# directories to ignore when looking for source files.
	# This patterns also effect to html_static_path and html_extra_path
	exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']

	highlight_language = 'C++'

	# The name of the Pygments (syntax highlighting) style to use.
	pygments_style = 'sphinx'

	# If true, `todo` and `todoList` produce output, else they produce nothing.
	todo_include_todos = False


	# -- Options for HTML output ----------------------------------------------

	# The theme to use for HTML and HTML Help pages. See the documentation for
	# a list of builtin themes.
	html_theme = 'alabaster'

	# Theme options are theme-specific and customize the look and feel of a theme
	# further. For a list of options available for each theme, see the
	# documentation.
	html_theme_options = {
	'body_text': '#000000',
	'narrow_sidebar_fg': '#000000',
	'sidebar_header': '#000000',
	'sidebar_link': '#000000',
	'sidebar_text': '#000000'
	}

	# Add any paths that contain custom static files (such as style sheets) here,
	# relative to this directory. They are copied after the builtin static files,
	# so a file named "default.css" will overwrite the builtin "default.css".
	# html_static_path = ['_static']

	# Custom sidebar templates, must be a dictionary that maps document names
	# to template names.
	#
	# This is required for the alabaster theme
	# refs: http://alabaster.readthedocs.io/en/latest/installation.html#sidebars
	html_sidebars = {
	'**': [
	'about.html',
	'navigation.html',
	'relations.html', # needs 'show_related': True theme option to display
	'searchbox.html',
	'donate.html',
	]
	}


	# -- Options for HTMLHelp output ------------------------------------------

	# Output file base name for HTML help builder.
	htmlhelp_basename = 'HEJ2doc'


	# -- Options for LaTeX output ---------------------------------------------

	latex_elements = {
	# The paper size ('letterpaper' or 'a4paper').
	#
	# 'papersize': 'letterpaper',

	# The font size ('10pt', '11pt' or '12pt').
	#
	# 'pointsize': '10pt',

	# Additional stuff for the LaTeX preamble.
	#
	# 'preamble': '',

	# Latex figure (float) alignment
	#
	# 'figure_align': 'htbp',
	}

	# Grouping the document tree into LaTeX files. List of tuples
	# (source start file, target name, title,
	# author, documentclass [howto, manual, or own class]).
	latex_documents = [
	(master_doc, 'HEJ2.tex', u'HEJ 2 Documentation',
	u'Jeppe Andersen, Tuomas Hapola, Marian Heil, Andreas Maier, Jennifer Smillie', 'manual'),
	]


	# -- Options for manual page output ---------------------------------------

	# One entry per manual page. List of tuples
	# (source start file, name, description, authors, manual section).
	man_pages = [
	(master_doc, 'hej2', u'HEJ 2 Documentation',
	[author], 1)
	]


	# -- Options for Texinfo output -------------------------------------------

	# Grouping the document tree into Texinfo files. List of tuples
	# (source start file, target name, title, author,
	# dir menu entry, description, category)
	texinfo_documents = [
	(master_doc, 'HEJ2', u'HEJ 2 Documentation',
	author, 'HEJ2', 'One line description of project.',
	'Miscellaneous'),
	]
	diff --git a/doc/sphinx/installation.rst b/doc/sphinx/installation.rst
	index 2d2b755..79398c5 100644
	--- a/doc/sphinx/installation.rst
	+++ b/doc/sphinx/installation.rst
	@@ -1,78 +1,84 @@
	.. _Installation:

	Installation
	============

	Download
	--------

	A tar archive of the HEJ 2 source code can be downloaded and
	decompressed with the command::

	curl https://hej.web.cern.ch/HEJ/downloads/HEJ_2.0.tar.gz \| tar -xz

	To obtain the latest stable HEJ version, `HEJ_2.0.tar.gz` should be
	replaced by `HEJ.tar.gz`.

	Alternatively, the HEJ source code can be obtained by installing the
	`git version control system <https://git-scm.com/>`_. and running::

	git clone https://phab.hepforge.org/source/hej.git

	We also provide a `Docker image <https://hub.docker.com/r/hejdock/hej>`_
	containing a HEJ 2 installation on. This image can be pulled with::

	docker pull hejdock/hej

	When using the Docker image the remaining installation steps can be
	skipped.

	Prerequisites
	-------------

	Before installing HEJ 2, you need the following programs and
	libraries:

	- `CMake <https://cmake.org/>`_ version 3.1
	- A compiler supporting the C++14 standard, for example `gcc <https://gcc.gnu.org/>`_ 5 or later
	- `FastJet <http://fastjet.fr/>`_
	- `CLHEP <https://gitlab.cern.ch/CLHEP/CLHEP>`_
	- `LHAPDF <https://lhapdf.hepforge.org/>`_
	- The `IOStreams` and `uBLAS` `boost <https://www.boost.org>`_ libraries
	- `yaml-cpp <https://github.com/jbeder/yaml-cpp>`_

	If you want to include finite top mass corrections in Higgs boson + jets
	production, you additionally need version 2 of the `QCDLoop
	<https://github.com/scarrazza/qcdloop>`_ library. HEJ 2 supports
	versions 2 and 3 of `HepMC <https://hepmc.web.cern.ch/hepmc/>`_ if it is
	-installed, but does not require it.
	+installed, but does not require it. Additional HEJ 2 can be interfaced to
	+`rivet <https://rivet.hepforge.org/>`_, which requires HepMC version 2.

	Compilation
	-----------

	To compile and install HEJ 2 run::

	cmake source/directory -DCMAKE_INSTALL_PREFIX=target/directory
	make install

	:file:`source/directory` is the directory containing the file
	:file:`CMakeLists.txt`. If you omit
	:code:`-DCMAKE_INSTALL_PREFIX=target/directory` HEJ 2 will be
	installed to some default location.

	In case some of the aforementioned prerequisites are not found by
	:code:`cmake` you can give a hint by adding an additional argument
	:code:`-Dlibname_ROOT_DIR=/directory/with/library`, where
	:code:`libname` should be replaced by the name of the library in
	question.

	+To not include specific packages one can add
	+:code:`-DEXCLUDE_packagename=TRUE` to :code:`cmake`, e.g. by
	+setting :code:`-DEXCLUDE_rivet=TRUE` HEJ 2 will not be interfaced
	+to `rivet` even if rivet is available on the system.
	+
	Testing
	-------

	To test your installation, download the NNPDF 2.3 PDF set with::

	lhapdf install NNPDF23_nlo_as_0119

	and run::

	make test
	diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
	index 1e54b15..0b3005c 100644
	--- a/src/CMakeLists.txt
	+++ b/src/CMakeLists.txt
	@@ -1,19 +1,19 @@
	file(GLOB src_files *.cc)
	add_library(hejlib SHARED ${src_files})
	set_target_properties(hejlib PROPERTIES OUTPUT_NAME "HEJ")

	set(libraries ${CMAKE_DL_LIBS} ${LHAPDF_LIBRARIES} ${CLHEP_LIBRARIES}
	- ${FASTJET_LIBRARIES} ${Boost_LIBRARIES} ${YAML_CPP_LIBRARIES} yaml-cpp)
	+ ${fastjet_LIBRARIES} ${Boost_LIBRARIES} ${YAML_CPP_LIBRARIES} yaml-cpp)
	if(${QCDloop_FOUND})
	list(APPEND libraries ${QCDloop_LIBRARIES} quadmath)
	endif()
	if(${HepMC_FOUND})
	list(APPEND libraries ${HepMC_LIBRARIES})
	if(${rivet_FOUND})
	list(APPEND libraries ${rivet_LIBRARIES})
	endif()
	endif()

	target_link_libraries(hejlib ${libraries})

	install(TARGETS hejlib DESTINATION ${INSTALL_LIB_DIR})

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