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Add a Key4hepConfig file
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jmcarcell committed Sep 6, 2024
1 parent a9433e1 commit fd43134
Showing 1 changed file with 84 additions and 0 deletions.
84 changes: 84 additions & 0 deletions cmake/Key4hepConfig.cmake
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macro(key4hep_set_compiler_flags)
if (DEFINED KEY4HEP_SET_COMPILER_FLAGS AND NOT KEY4HEP_SET_COMPILER_FLAGS)
return()
endif()

set(COMPILER_FLAGS "-fPIC -Wall -Wextra -Wpedantic -Wshadow -Wdeprecated")

if(CMAKE_CXX_COMPILER_ID MATCHES "^(Apple)?Clang$")
set(COMPILER_FLAGS "${COMPILER_FLAGS} -Winconsistent-missing-override -Wheader-hygiene -fcolor-diagnostics")
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(COMPILER_FLAGS "${COMPILER_FLAGS} -fdiagnostics-color=always")
endif()

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMPILER_FLAGS}")

endmacro()

macro(key4hep_set_build_type)

# For ccmake and cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
"None" "Debug" "Release" "MinSizeRel" "RelWithDebInfo")

if(NOT CMAKE_CONFIGURATION_TYPES)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE RelWithDebInfo
CACHE STRING "Choose the type of build, options are: None, Release, MinSizeRel, Debug, RelWithDebInfo (default)"
FORCE
)
else()
set(CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}"
CACHE STRING "Choose the type of build, options are: None, Release, MinSizeRel, Debug, RelWithDebInfo (default)"
FORCE
)
endif()
endif()
endmacro()

macro(key4hep_set_cxx_standard_and_extensions)
set(CMAKE_CXX_STANDARD 20 CACHE STRING "")

if(NOT CMAKE_CXX_STANDARD MATCHES "20|23")
message(FATAL_ERROR "Unsupported C++ standard: ${CMAKE_CXX_STANDARD}, supported values are 20 and 23")
endif()

set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

endmacro()

macro(key4hep_set_rpath)
# When building, don't use the install RPATH already (but later on when installing)
set(CMAKE_SKIP_BUILD_RPATH FALSE) # don't skip the full RPATH for the build tree
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE) # use always the build RPATH for the build tree
set(CMAKE_MACOSX_RPATH TRUE) # use RPATH for MacOSX
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE) # point to directories outside the build tree to the install RPATH

# Check whether to add RPATH to the installation (the build tree always has the RPATH enabled)
if(APPLE)
set(CMAKE_INSTALL_NAME_DIR "@rpath")
set(CMAKE_INSTALL_RPATH "@loader_path/../lib") # self relative LIBDIR
# the RPATH to be used when installing, but only if it's not a system directory
list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/lib" isSystemDir)
if("${isSystemDir}" STREQUAL "-1")
set(CMAKE_INSTALL_RPATH "@loader_path/../lib")
endif()
elseif(DEFINED KEY4HEP_SET_RPATH AND NOT KEY4HEP_SET_RPATH)
set(CMAKE_SKIP_INSTALL_RPATH TRUE) # skip the full RPATH for the install tree
else()
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${LIBDIR}") # install LIBDIR
# the RPATH to be used when installing, but only if it's not a system directory
list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/lib" isSystemDir)
if("${isSystemDir}" STREQUAL "-1")
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${LIBDIR}")
endif()
endif()
endmacro()

###################################################

key4hep_set_compiler_flags()
key4hep_set_build_type()
key4hep_set_cxx_standard_and_extensions()
key4hep_set_rpath()

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