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CMakeLists.txt
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# Top level CMakeLists.txt for EvtGen
# Enforce an out-of-source build.
# Should be the first action in the top level CMakeLists.txt
if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
message(STATUS "EvtGen requires an out-of-source build.")
message(STATUS "Please remove the following files from ${CMAKE_BINARY_DIR}:")
message(STATUS " CMakeCache.txt")
message(STATUS " CMakeFiles")
message(STATUS "Once these files are removed, create a separate directory")
message(STATUS "and run CMake from there, pointing it to:")
message(STATUS " ${CMAKE_SOURCE_DIR}")
message(FATAL_ERROR "in-source build detected")
endif()
# Also require a minimum version of CMake
cmake_minimum_required(VERSION 3.11.0)
# Project setup
if(${CMAKE_VERSION} VERSION_LESS 3.12.0)
project(EvtGen
VERSION 2.0.0
DESCRIPTION "Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons."
)
else()
project(EvtGen
VERSION 2.0.0
DESCRIPTION "Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons."
HOMEPAGE_URL "https://evtgen.hepforge.org"
)
endif()
# Prepend this project's custom module path(s) to CMAKE_MODULE_PATH
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules ${CMAKE_MODULE_PATH})
# Include needed modules to perform any custom setup
# Install paths
include(GNUInstallDirs)
# Compilation/linking flags and related settings
include(CompilerFlags)
# EvtGen external dependencies
option(EVTGEN_PYTHIA "Enable/disable linking with Pythia8" OFF)
option(EVTGEN_PHOTOS "Enable/disable linking with Photos++" OFF)
option(EVTGEN_TAUOLA "Enable/disable linking with Tauola++" OFF)
option(EVTGEN_HEPMC3 "Enable/disable linking with HepMC3" ON)
if (EVTGEN_HEPMC3)
message(STATUS "EvtGen: Linking with HepMC3")
else()
message(STATUS "EvtGen: Linking with HepMC2")
endif()
message(STATUS "EvtGen: Optional linking with Pythia8 EVTGEN_PYTHIA ${EVTGEN_PYTHIA}")
message(STATUS "EvtGen: Optional linking with Photos++ EVTGEN_PHOTOS ${EVTGEN_PHOTOS}")
message(STATUS "EvtGen: Optional linking with Tauola++ EVTGEN_TAUOLA ${EVTGEN_TAUOLA}")
message(STATUS "EvtGen: Optional linking with HepMC3 EVTGEN_HEPMC3 ${EVTGEN_HEPMC3}")
include(ExternalDependencies)
# Now build the library
add_subdirectory(src)
# Copy the particle property and decay tables
configure_file(DECAY.DEC ${CMAKE_CURRENT_BINARY_DIR}/DECAY.DEC COPYONLY)
configure_file(DECAY.XML ${CMAKE_CURRENT_BINARY_DIR}/DECAY.XML COPYONLY)
configure_file(evt.pdl ${CMAKE_CURRENT_BINARY_DIR}/evt.pdl COPYONLY)
# Copy the older particle property and decay tables
configure_file(DECAY_2009.DEC ${CMAKE_CURRENT_BINARY_DIR}/DECAY_2009.DEC COPYONLY)
configure_file(DECAY_2009.XML ${CMAKE_CURRENT_BINARY_DIR}/DECAY_2009.XML COPYONLY)
configure_file(DECAY_2010.DEC ${CMAKE_CURRENT_BINARY_DIR}/DECAY_2010.DEC COPYONLY)
configure_file(DECAY_2010.XML ${CMAKE_CURRENT_BINARY_DIR}/DECAY_2010.XML COPYONLY)
# Build the executables in the test and validation directories
option(EVTGEN_BUILD_DOC "Enable/disable building of documentation in 'doc' directory" OFF)
option(EVTGEN_BUILD_TESTS "Enable/disable building of executables in 'test' directory" OFF)
option(EVTGEN_BUILD_VALIDATIONS "Enable/disable building of executables in 'validation' directory" OFF)
message(STATUS "EvtGen: Building of documentation in 'doc' directory EVTGEN_BUILD_DOC ${EVTGEN_BUILD_DOC}")
message(STATUS "EvtGen: Building of executables in 'test' directory EVTGEN_BUILD_TESTS ${EVTGEN_BUILD_TESTS}")
message(STATUS "EvtGen: Building of executables in 'validation' directory EVTGEN_BUILD_VALIDATIONS ${EVTGEN_BUILD_VALIDATIONS}")
if(${EVTGEN_BUILD_DOC})
add_subdirectory(doc)
endif()
if(${EVTGEN_BUILD_TESTS})
add_subdirectory(test)
endif()
if(${EVTGEN_BUILD_VALIDATIONS})
add_subdirectory(validation)
endif()
# Install the include directories
install(DIRECTORY EvtGen DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(DIRECTORY EvtGenBase DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(DIRECTORY EvtGenExternal DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(DIRECTORY EvtGenModels DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
# Install the particle properties and decay tables
install(FILES DECAY.DEC DECAY.XML evt.pdl DECAY_2010.XML DECAY_2010.DEC DECAY_2009.XML DECAY_2009.DEC DESTINATION ${CMAKE_INSTALL_DATADIR}/EvtGen)
# Generate CMake config files, which can be used by other projects
include(CMakePackageConfigHelpers)
set(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
set(LIB_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR})
configure_package_config_file(cmake/Templates/EvtGenConfig.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/EvtGenConfig.cmake
INSTALL_DESTINATION ${CMAKE_INSTALL_DATADIR}/EvtGen/cmake
PATH_VARS INCLUDE_INSTALL_DIR LIB_INSTALL_DIR
)
write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/EvtGenConfigVersion.cmake
COMPATIBILITY AnyNewerVersion
)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/EvtGenConfig.cmake
${CMAKE_CURRENT_BINARY_DIR}/EvtGenConfigVersion.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/EvtGen/cmake
)
install(
EXPORT "EvtGenTargets"
NAMESPACE "EvtGen::"
DESTINATION ${CMAKE_INSTALL_DATADIR}/EvtGen/cmake
)

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