CMakeLists.txt

#---Check if cmake has the required version-----------------------------------------------------

cmake_minimum_required(VERSION 3.4.3 FATAL_ERROR)

set(policy_new CMP0068)
foreach(policy ${policy_new})
  if(POLICY ${policy})
    cmake_policy(SET ${policy} NEW)
  endif()
endforeach()

include(cmake/modules/CaptureCommandLine.cmake)

#---Set name of the project to "ROOT". Has to be done after check of cmake version--------------
project(ROOT)
set(IntegratedBuild ON)

#---Set the locale to default C to prevent issued due to localization of commands---------------
# This is necessary as we for example call `clang -v` and parse its output. But on a localized
# program, the output parsing is much more error prone as certrain strings we're looking for
# could be missing or be in a different order. To prevent those errors, let's just force all
# output to use the default C locale which is more or less identical on all systems.
set(ENV{LANG} C)

#---Set pathes where to put the libraries, executables and headers------------------------------
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

# Before setting ROOTSYS, make sure that the environment isn't polluted by a different
# ROOT build. This is significant e,g. for roottest, which will otherwise have libraries
# of a different ROOT build available / visible / reachable.
if($ENV{ROOTSYS})
  string(REPLACE "$ENV{ROOTSYS}/bin" "" ENV{PATH}, $ENV{PATH})
  string(REPLACE "$ENV{ROOTSYS}/lib" "" ENV{LD_LIBRARY_PATH} $ENV{LD_LIBRARY_PATH})
  string(REPLACE "$ENV{ROOTSYS}/lib" "" ENV{PYTHONPATH} $ENV{PYTHONPATH})
  set(ENV{"ROOTSYS"} ${CMAKE_BINARY_DIR})
endif()

set(ROOTSYS ${CMAKE_BINARY_DIR})
set(HEADER_OUTPUT_PATH ${CMAKE_BINARY_DIR}/include)
set(ROOT_INCLUDE_DIR ${HEADER_OUTPUT_PATH})

#---Set the library version in the main CMakeLists.txt------------------------------------------
file(READ ${CMAKE_SOURCE_DIR}/build/version_number versionstr)
string(STRIP ${versionstr} versionstr)
string(REGEX REPLACE "([0-9]+)[.][0-9]+[/][0-9]+" "\\1" ROOT_MAJOR_VERSION ${versionstr})
string(REGEX REPLACE "[0-9]+[.]([0-9]+)[/][0-9]+" "\\1" ROOT_MINOR_VERSION ${versionstr})
string(REGEX REPLACE "[0-9]+[.][0-9]+[/]([0-9]+)" "\\1" ROOT_PATCH_VERSION ${versionstr})
set(ROOT_VERSION "${ROOT_MAJOR_VERSION}.${ROOT_MINOR_VERSION}.${ROOT_PATCH_VERSION}")

#---Where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked-------------
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)

#---Enable Folders in IDE like Visual Studio----------------------------------------------------
set_property(GLOBAL PROPERTY USE_FOLDERS ON)

#---Load some basic macros which are needed later for the confiuration and build----------------
include(RootBuildOptions)
include(RootNewMacros)
include(CheckCompiler)
include(CheckAssembler)
include(MacroEnsureVersion)

#---Enable CCache ------------------------------------------------------------------------------
if(ccache)
   set(CMAKE_IGNORE_PATH_TMP ${CMAKE_IGNORE_PATH})
   unset(CMAKE_IGNORE_PATH)

   find_program(ccache_cmd NAMES ccache ccache-swig)
   mark_as_advanced(ccache_cmd ${ccache_cmd})

   set(CMAKE_IGNORE_PATH ${CMAKE_IGNORE_PATH_TMP})

   if(ccache_cmd)
      message(STATUS "Using ccache for building")
      set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
   else()
      message(STATUS "Could NOT find ccache")
   endif()
endif()

#---Enable test coverage -----------------------------------------------------------------------
if(coverage)
  set(GCC_COVERAGE_COMPILE_FLAGS "-fprofile-arcs -ftest-coverage")
  set(GCC_COVERAGE_LINK_FLAGS    "-fprofile-arcs")
  set(CMAKE_CXX_FLAGS            "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
  set(CMAKE_EXE_LINKER_FLAGS     "${CMAKE_EXE_LINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}")
  set(CMAKE_SHARED_LINKER_FLAGS  "${CMAKE_SHAREDLINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}")
  set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
endif()

#--- Enable build timing -----------------------------------------------------------------------
if (build_timing)
  # FIXME: This currently will override the use of ccache if -Dbuild_timing=On -Dccache=On is passed.
  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CMAKE_COMMAND} -E time")
  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CMAKE_COMMAND} -E time")
  #set_property(GLOBAL PROPERTY RULE_LAUNCH_CUSTOM "${CMAKE_COMMAND} -E time") 
endif()

#---Enable CTest package -----------------------------------------------------------------------
#include(CTest)
if(testing)
  enable_testing()
endif()

#---Check if the user wants to build the project in the source directory------------------------
ROOT_CHECK_OUT_OF_SOURCE_BUILD()

#---Here we look for installed software and switch on and of the different build options--------
include(SearchInstalledSoftware)
ROOT_SHOW_OPTIONS()

#---Here we add tcmalloc to the linker flags if needed------------------------------------------
if (TCMALLOC_FOUND)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -ltcmalloc -L ${TCMALLOC_LIBRARY_PATH}")
  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -ltcmalloc -L ${TCMALLOC_LIBRARY_PATH}")
endif()

#---Here we add jemalloc to the linker flags if needed------------------------------------------
if (JEMALLOC_FOUND)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -ljemalloc -L ${JEMALLOC_LIBRARY_PATH}")
  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -ljemalloc -L ${JEMALLOC_LIBRARY_PATH}")
endif()

#---Populate the configure arguments returned by 'root-config --config'-------------------------
get_cmake_property(variables CACHE_VARIABLES)
foreach(var ${variables})
  if((var MATCHES "_(LIBRARIES|LIBRARY|INCLUDE)") AND
     (NOT ${${var}} STREQUAL "") AND
     (NOT ${var} MATCHES "NOTFOUND"))
    if (var MATCHES "^QT_")
      # filter out the very long list of Qt libraries and include dirs
      if (var MATCHES "(QT_LIBRARY_DIR|QT_QTCORE_INCLUDE_DIR)")
        set(ROOT_CONFIGARGS "${ROOT_CONFIGARGS}${var}=${${var}} ")
      endif()
    else()
      if ((NOT var MATCHES "_(DOCS|TESTS|INSTALL)") AND (NOT var MATCHES "^_"))
        set(ROOT_CONFIGARGS "${ROOT_CONFIGARGS}${var}=${${var}} ")
      endif()
    endif()
  endif()
endforeach()

#---Move (copy) directories to binary tree------------------------------------------------------
set(stamp_file ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/move_artifacts.stamp)
add_custom_command(OUTPUT ${stamp_file}
                   COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SOURCE_DIR}/LICENSE ${CMAKE_BINARY_DIR}/LICENSE
                   COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_SOURCE_DIR}/README ${CMAKE_BINARY_DIR}/README
                   COMMAND ${CMAKE_COMMAND} -E touch ${stamp_file}
                   COMMENT "Copying directories such as etc, icons, fonts, etc. to build area")

#---Copy files to the build area, with dependency---------------------------------
file(GLOB_RECURSE artifact_files RELATIVE ${CMAKE_SOURCE_DIR} tutorials/* etc/* test/* icons/* fonts/* macros/*)
set(artifact_files_builddir)
foreach(artifact_file ${artifact_files})
  # Filter out hsimple.root; someone might have created it in the src dir, and the hsimple.root
  # target below will interfere.
  if (NOT (tutorial_file STREQUAL "tutorials/hsimple.root"))
    add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${artifact_file}
      COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SOURCE_DIR}/${artifact_file} ${CMAKE_BINARY_DIR}/${artifact_file}
      COMMENT "Copying ${CMAKE_SOURCE_DIR}/${artifact_file}"
      DEPENDS ${CMAKE_SOURCE_DIR}/${artifact_file})
    list(APPEND artifact_files_builddir ${CMAKE_BINARY_DIR}/${artifact_file})
  endif()
endforeach()
add_custom_target(move_artifacts DEPENDS ${stamp_file} ${artifact_files_builddir})

add_subdirectory (interpreter)
# Add the compilation flags from LLVM to the flags we use to compile cling-based tools.
set(CLING_CXXFLAGS "${CLING_CXXFLAGS} ${ROOT_LLVM_FLAGS}")

#---CXX MODULES-----------------------------------------------------------------------------------
if(cxxmodules)
  # Copy-pasted from HandleLLVMOptions.cmake, please keep up to date.
  set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
  set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -fmodules -fcxx-modules")
  # Check that we can build code with modules enabled, and that repeatedly
  # including <cassert> still manages to respect NDEBUG properly.
  CHECK_CXX_SOURCE_COMPILES("#undef NDEBUG
                             #include <cassert>
                             #define NDEBUG
                             #include <cassert>
                             int main() { assert(this code is not compiled); }"
                             CXX_SUPPORTS_MODULES)
  set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
  if(NOT CXX_SUPPORTS_MODULES)
    message(FATAL_ERROR "cxxmodules is not supported by this compiler")
  endif()

  set(ROOT_CXXMODULES_COMMONFLAGS "${ROOT_CXXMODULES_COMMONFLAGS} -fmodules -fmodules-cache-path=${CMAKE_BINARY_DIR}/include/pcms/ -fno-autolink -fdiagnostics-show-note-include-stack -Wno-module-import-in-extern-c")

  # FIXME: We should remove this once libc++ supports -fmodules-local-submodule-visibility.
  if (APPLE)
    # FIXME: TGLIncludes and alike depend on glew.h doing special preprocessor
    # trickery to override the contents of system's OpenGL.
    # On OSX #include TGLIncludes.h will trigger the creation of the system
    # OpenGL.pcm. Once it is built, glew cannot use preprocessor trickery to 'fix'
    # the translation units which it needs to 'rewrite'. The translation units
    # which need glew support are in graf3d. However, depending on the modulemap
    # organization we could request it implicitly (eg. one big module for ROOT).
    # In these cases we need to 'prepend' this include path to the compiler in order
    # for glew.h to it its trick.
    set(ROOT_CXXMODULES_COMMONFLAGS "${ROOT_CXXMODULES_COMMONFLAGS} -isystem ${CMAKE_SOURCE_DIR}/graf3d/glew/isystem")
  endif()
endif(cxxmodules)

if(MSVC)
  set(_os_cat "type")
else()
  set(_os_cat "cat")
endif()
file(TO_NATIVE_PATH "${CMAKE_BINARY_DIR}/include/module.modulemap.extra" _from_native)
file(TO_NATIVE_PATH "${CMAKE_BINARY_DIR}/include/module.modulemap" _to_native)

add_custom_target(copymodulemap DEPENDS "${CMAKE_BINARY_DIR}/include/module.modulemap")
add_custom_command(
                  OUTPUT "${CMAKE_BINARY_DIR}/include/module.modulemap"
                  DEPENDS build/unix/module.modulemap "${CMAKE_BINARY_DIR}/include/module.modulemap.extra"
                  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/build/unix/module.modulemap" "${CMAKE_BINARY_DIR}/include/module.modulemap"
                  COMMAND ${_os_cat} "${_from_native}" >> "${_to_native}"
)
install(FILES "${CMAKE_BINARY_DIR}/include/module.modulemap" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} COMPONENT headers)

add_dependencies(move_artifacts copymodulemap)

# Provide our own modulemap for implementations other than libcxx.
if (NOT WIN32 AND NOT libcxx)
  # Write a empty overlay file to the output directory that CMake can run its compiler tests.
  # We will create the actual overlay later in the configuration.
  file(WRITE ${CMAKE_BINARY_DIR}/include/modulemap.overlay.yaml "{'version' : 0, 'roots' : []}")
  set(__vfs_overlay "-ivfsoverlay ${CMAKE_BINARY_DIR}/include/modulemap.overlay.yaml")

  if (cxxmodules)
    set(ROOT_CXXMODULES_COMMONFLAGS "${ROOT_CXXMODULES_COMMONFLAGS} ${__vfs_overlay}")
  endif()

  # Only use the first path from the HEADERS_LOCATION (which is separated by colons).
  get_property(__libcpp_full_paths GLOBAL PROPERTY ROOT_CLING_CXX_HEADERS_LOCATION)
  string(REGEX MATCHALL "[^:]+" __libcpp_full_paths_list "${__libcpp_full_paths}")
  if (__libcpp_full_paths_list)
    list(GET __libcpp_full_paths_list 0 __libcpp_full_path)

    configure_file(${CMAKE_SOURCE_DIR}/build/unix/modulemap.overlay.yaml.in ${CMAKE_BINARY_DIR}/include/modulemap.overlay.yaml @ONLY)

    configure_file(${CMAKE_SOURCE_DIR}/build/unix/stl.modulemap ${CMAKE_BINARY_DIR}/include/stl.modulemap)
    configure_file(${CMAKE_SOURCE_DIR}/build/unix/libc.modulemap ${CMAKE_BINARY_DIR}/include/libc.modulemap)
  else()
    message(SEND_ERROR "Couldn't find c++ library paths, no modulemap overlay will be installed! (__libcpp_full_paths = '${__libcpp_full_paths}')")
  endif()
endif()

if (cxxmodules)
  # These vars are useful when we want to compile things without cxxmodules.
  set(ROOT_CXXMODULES_CXXFLAGS "${ROOT_CXXMODULES_COMMONFLAGS} -fcxx-modules" CACHE STRING "Useful to filter out the modules-related cxxflags.")
  if (NOT APPLE)
    set(ROOT_CXXMODULES_CXXFLAGS "${ROOT_CXXMODULES_COMMONFLAGS} -Xclang -fmodules-local-submodule-visibility" CACHE STRING "Useful to filter out the modules-related cxxflags." FORCE)
  endif()
  set(ROOT_CXXMODULES_CFLAGS "${ROOT_CXXMODULES_COMMONFLAGS}" CACHE STRING "Useful to filter out the modules-related cflags.")


  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ROOT_CXXMODULES_CFLAGS}")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ROOT_CXXMODULES_CXXFLAGS}")
endif(cxxmodules)

#---Recurse into the given subdirectories.  This does not actually cause another cmake executable
#  to run. The same process will walk through the project's entire directory structure.
add_subdirectory (core)
add_subdirectory (build)
add_subdirectory (math)
add_subdirectory (hist)
add_subdirectory (tree)
add_subdirectory (io)
add_subdirectory (net)
add_subdirectory (graf2d)
add_subdirectory (graf3d)
add_subdirectory (gui)
add_subdirectory (proof)
add_subdirectory (html)
add_subdirectory (montecarlo)
add_subdirectory (geom)
add_subdirectory (rootx)
add_subdirectory (misc)
add_subdirectory (main)
add_subdirectory (bindings)
add_subdirectory (sql)
if(tmva)
  add_subdirectory(tmva)
endif()
if(roofit)
  add_subdirectory(roofit)
endif()

ROOT_ADD_TEST_SUBDIRECTORY(test)
ROOT_ADD_TEST_SUBDIRECTORY(tutorials)

#---CXX MODULES-----------------------------------------------------------------------------------
# Take all the modulemap contents we collected from the packages and append them to our modulemap.
# We have to delay this because the ROOT_CXXMODULES_EXTRA_MODULEMAP_CONTENT is filled in the
# add_subdirectory calls above.
get_property(__modulemap_extra_content GLOBAL PROPERTY ROOT_CXXMODULES_EXTRA_MODULEMAP_CONTENT)
string(REPLACE ";" "" __modulemap_extra_content "${__modulemap_extra_content}")
file(WRITE "${CMAKE_BINARY_DIR}/include/module.modulemap.extra" "${__modulemap_extra_content}")

# From now on we handled all exposed module and want to make all new modulemaps private to ROOT.
set(ROOT_CXXMODULES_WRITE_TO_CURRENT_DIR ON)

get_property(__allHeaders GLOBAL PROPERTY ROOT_HEADER_TARGETS)
get_property(__allBuiltins GLOBAL PROPERTY ROOT_BUILTIN_TARGETS)
add_custom_target(move_headers ALL DEPENDS ${__allHeaders} ${__allBuiltins})

#---Global PCH-----------------------------------------------------------------------------------
get_property(__allTargets GLOBAL PROPERTY ROOT_DICTIONARY_TARGETS)
get_property(__allFiles GLOBAL PROPERTY ROOT_DICTIONARY_FILES)
get_property(__clingetcpch GLOBAL PROPERTY CLINGETCPCH)


set (CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS}")
if(cxxmodules)
  # rootcling uses our internal version of clang. Passing the modules flags here
  # would allow rootcling to find module files built by the external compiler
  # (eg. $CXX or $CC). This, in turn, would cause problems if we are using
  # different clang version (even different commit revision) as the modules files
  # are not guaranteed to be compatible among clang revisions.
  string(REPLACE "${ROOT_CXXMODULES_CXXFLAGS}" "" CMAKE_CXX_FLAGS_SEPARATE ${CMAKE_CXX_FLAGS_SEPARATE})
endif(cxxmodules)
string(REGEX REPLACE "[ ]-" ";-" CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS_SEPARATE} ${CORE_OS_DICT_CXX_FLAGS}")
if(MSVC)
  string(REPLACE "-nologo" "" CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS_SEPARATE}")
  string(REPLACE "-EHsc-" "" CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS_SEPARATE}")
  string(REPLACE "-GR" "" CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS_SEPARATE}")
  string(REPLACE "-MDd" "" CMAKE_CXX_FLAGS_SEPARATE "${CMAKE_CXX_FLAGS_SEPARATE}")
endif()

add_custom_command(OUTPUT etc/dictpch/allLinkDefs.h
                          etc/dictpch/allHeaders.h
                          etc/dictpch/allCppflags.txt
                   COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/build/unix/makepchinput.py ${CMAKE_SOURCE_DIR} . ${__clingetcpch} -- ${CMAKE_CXX_FLAGS_SEPARATE}
                   DEPENDS ${CMAKE_SOURCE_DIR}/build/unix/makepchinput.py ${__allFiles})

get_property(incdirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
foreach(d ${incdirs})
  if(NOT "${d}" MATCHES "AFTER|BEFORE|INTERFACE|PRIVATE|PUBLIC|SYSTEM")
    set(__allIncludes ${__allIncludes} -I${d})
  endif()
endforeach()
if(WIN32)
  set(__allIncludes ${__allIncludes} -I${CMAKE_SOURCE_DIR}/graf2d/win32gdk/gdk/src/glib)
  set(__allIncludes ${__allIncludes} -I${CMAKE_SOURCE_DIR}/graf2d/win32gdk/gdk/src)
  set(__allIncludes ${__allIncludes} -I${CMAKE_SOURCE_DIR}/graf2d/win32gdk/gdk/src/gdk)
endif()

if(runtime_cxxmodules)
  # Dummy target that does nothing, we don't need a PCH for modules.
  add_custom_target(onepcm)
else()
  add_custom_command(OUTPUT etc/allDict.cxx.pch
                    COMMAND ${CMAKE_COMMAND} -E env ROOTIGNOREPREFIX=1 ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/etc/dictpch/makepch.py etc/allDict.cxx.pch ${__allIncludes} -I${CMAKE_BINARY_DIR}/include
                    DEPENDS ${CMAKE_SOURCE_DIR}/etc/dictpch/makepch.py
                            etc/dictpch/allLinkDefs.h
                            etc/dictpch/allHeaders.h
                            etc/dictpch/allCppflags.txt
                            rootcling)
  add_custom_target(onepcm ALL DEPENDS etc/allDict.cxx.pch)
  set_source_files_properties(${__allFiles} PROPERTIES GENERATED TRUE)
  add_dependencies(onepcm ${__allTargets})
  install(FILES ${CMAKE_BINARY_DIR}/etc/allDict.cxx.pch DESTINATION ${CMAKE_INSTALL_SYSCONFDIR})
  install(DIRECTORY ${CMAKE_BINARY_DIR}/etc/dictpch DESTINATION ${CMAKE_INSTALL_SYSCONFDIR})
endif()

#---hsimple.root---------(use the executable for clearer dependencies and proper return code)---
add_custom_target(hsimple ALL DEPENDS tutorials/hsimple.root)
add_dependencies(hsimple onepcm)
if(WIN32)
  add_custom_command(OUTPUT tutorials/hsimple.root
                     COMMAND set PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} &&
                             set ROOTIGNOREPREFIX=1 &&
                             $<TARGET_FILE:root.exe> -l -q -b -n -x hsimple.C -e return
                     WORKING_DIRECTORY tutorials
                     DEPENDS $<TARGET_FILE:root.exe> Cling Hist Tree Gpad Graf HistPainter move_artifacts)
else()
  add_custom_command(OUTPUT tutorials/hsimple.root
                     COMMAND ${ld_library_path}=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}:$ENV{${ld_library_path}}
                             ROOTIGNOREPREFIX=1
                             $<TARGET_FILE:root.exe> -l -q -b -n -x hsimple.C -e return
                     WORKING_DIRECTORY tutorials
                     DEPENDS $<TARGET_FILE:root.exe> Cling Hist Tree Gpad Graf HistPainter move_artifacts)
endif()
install(FILES ${CMAKE_BINARY_DIR}/tutorials/hsimple.root DESTINATION ${CMAKE_INSTALL_TUTDIR} COMPONENT tests)

#---version--------------------------------------------------------------------------------------
if(NOT WIN32)
add_custom_target(version COMMAND ${CMAKE_SOURCE_DIR}/build/unix/makeversion.sh ${CMAKE_BINARY_DIR}
                          WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
#add_dependencies(version root.exe)
endif()

#---distribution commands------------------------------------------------------------------------
add_custom_target(distsrc COMMAND ${CMAKE_SOURCE_DIR}/build/unix/makedistsrc.sh ${CMAKE_SOURCE_DIR}
                  DEPENDS ${CMAKE_BINARY_DIR}/include/RGitCommit.h)
add_custom_target(dist COMMAND cpack --config CPackConfig.cmake)

#---Configure and install various files neded later and for clients -----------------------------
include(RootConfiguration)

#---Installation of project-wise artifacts-------------------------------------------------------
if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_INSTALL_PREFIX)
  install(FILES LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
  if(gnuinstall)
    install(DIRECTORY README/ DESTINATION ${CMAKE_INSTALL_DOCDIR})
  else()
    install(DIRECTORY README DESTINATION ${CMAKE_INSTALL_DOCDIR})
  endif()
  install(DIRECTORY etc/ DESTINATION ${CMAKE_INSTALL_SYSCONFDIR} USE_SOURCE_PERMISSIONS
                         PATTERN "system.rootrc" EXCLUDE
                         PATTERN "system.rootauthrc" EXCLUDE
                         PATTERN "system.rootdaemonrc" EXCLUDE
                         PATTERN "rootd.rc.d" EXCLUDE
                         PATTERN "proofd.rc.d" EXCLUDE
                         PATTERN "rootd.xinetd" EXCLUDE
                         PATTERN "proofd.xinetd" EXCLUDE
                         PATTERN "root.mimes" EXCLUDE
                         PATTERN "cmake" EXCLUDE
                         PATTERN "http" EXCLUDE )
  install(DIRECTORY fonts/  DESTINATION ${CMAKE_INSTALL_FONTDIR})
  install(DIRECTORY icons/  DESTINATION ${CMAKE_INSTALL_ICONDIR})
  install(DIRECTORY macros/ DESTINATION ${CMAKE_INSTALL_MACRODIR})
  install(DIRECTORY man/    DESTINATION ${CMAKE_INSTALL_MANDIR})
  install(DIRECTORY test/      DESTINATION ${CMAKE_INSTALL_TESTDIR} COMPONENT tests)
  install(DIRECTORY tutorials/ DESTINATION ${CMAKE_INSTALL_TUTDIR} COMPONENT tests)
  install(DIRECTORY cmake/modules DESTINATION ${CMAKE_INSTALL_CMAKEDIR} PATTERN "Find*.cmake" EXCLUDE)
  install(FILES build/misc/root.m4 DESTINATION ${CMAKE_INSTALL_ACLOCALDIR})
endif()

#---Configure Testing using CTest----------------------------------------------------------------
configure_file(${CMAKE_SOURCE_DIR}/cmake/modules/CTestCustom.cmake ${CMAKE_BINARY_DIR} COPYONLY)
if(testing)
  include(RootCTest)
  if(roottest)
    find_package(Git REQUIRED)
    execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                    OUTPUT_VARIABLE GIT_BRANCH OUTPUT_STRIP_TRAILING_WHITESPACE)
    #---Is the roottest source directory around?
    if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/roottest)
      set(roottestdir ${CMAKE_CURRENT_SOURCE_DIR}/roottest)
    else()
      # Need to break into two steps in case the source dir is a symlink
      get_filename_component(_source_dir ${CMAKE_CURRENT_SOURCE_DIR} REALPATH)
      set(roottestdir ${_source_dir}/../roottest)
    endif()

    if(IS_DIRECTORY ${roottestdir})
      file(REMOVE_RECURSE ${CMAKE_CURRENT_BINARY_DIR}/roottest)
      add_subdirectory(${roottestdir} roottest)
    else()
      message("-- Could not find roottest directory! Cloning from the repository...")
      execute_process(COMMAND ${GIT_EXECUTABLE} clone -b ${GIT_BRANCH}
                      https://github.com/root-project/roottest.git
                      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
      add_subdirectory(roottest)
    endif()
  endif()

  if(rootbench)
    find_package(Git REQUIRED)
    execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                    OUTPUT_VARIABLE GIT_BRANCH OUTPUT_STRIP_TRAILING_WHITESPACE)
    #---Is the rootbench source directory around?
    if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/rootbench)
      set(rootbenchdir ${CMAKE_CURRENT_SOURCE_DIR}/rootbench)
    else()
      # Need to break into two steps in case the source dir is a symlink
      get_filename_component(_source_dir ${CMAKE_CURRENT_SOURCE_DIR} REALPATH)
      set(rootbenchdir ${_source_dir}/../rootbench)
    endif()

    if(IS_DIRECTORY ${rootbenchdir})
      file(REMOVE_RECURSE ${CMAKE_CURRENT_BINARY_DIR}/rootbench)
      add_subdirectory(${rootbenchdir} rootbench)
    else()
      message("-- Could not find rootbench directory! Cloning from the repository...")
      execute_process(COMMAND ${GIT_EXECUTABLE} clone -b ${GIT_BRANCH}
                      https://github.com/root-project/rootbench.git
                      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
      add_subdirectory(rootbench)
    endif()
  endif()
endif()

#---Packaging-------------------------------------------------------------------------------------
include(RootCPack)