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Simplified CMakeLists.txt files

interpolate
Michael Uleysky 2 years ago
parent
commit
54818a74f1
  1. 83
      CMakeLists.txt
  2. 4
      src/CMakeLists.txt

83
CMakeLists.txt

@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.23) cmake_minimum_required(VERSION 3.9)
# Make sure the user doesn't play dirty with symlinks # Make sure the user doesn't play dirty with symlinks
get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH) get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
@ -14,87 +14,18 @@ if(${srcdir} STREQUAL ${bindir})
endif() endif()
project(odm CXX) project(odm CXX)
set(CMAKE_CXX_STANDARD 20)
if(NOT CMAKE_BUILD_TYPE) set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel" FORCE) set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
endif()
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules/" CACHE INTERNAL "Location of our custom CMake modules." FORCE)
include_directories(include) include_directories(include)
add_compile_options(-Wall)
# Checking compiler options
set(default_options -Wall)
set(linker_options -Wall)
include(CheckCXXCompilerFlag)
set(saved_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
# C++20 is required
CHECK_CXX_COMPILER_FLAG(-std=c++20 COMPILER_SUPPORTS_CXX20)
if(COMPILER_SUPPORTS_CXX20)
set(default_options ${default_options} -std=c++20)
else()
message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++20 support. Please use a different C++ compiler.")
endif()
# OpenMP is required
CHECK_CXX_COMPILER_FLAG(-fopenmp COMPILER_SUPPORTS_OPENMP)
if(COMPILER_SUPPORTS_OPENMP)
set(default_options ${default_options} -fopenmp)
set(linker_options ${linker_options} -fopenmp)
else()
message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no OpenMP support. Please use a different C++ compiler.")
endif()
# Link time optimization check
set(CMAKE_REQUIRED_FLAGS -flto=auto)
CHECK_CXX_COMPILER_FLAG(-flto=auto COMPILER_SUPPORTS_FLTO)
if(COMPILER_SUPPORTS_FLTO AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
set(default_options ${default_options} -flto=auto)
set(linker_options ${linker_options} -flto=auto)
endif()
unset(CMAKE_REQUIRED_FLAGS)
# Clang can use lto only with gold linker
if(NOT COMPILER_SUPPORTS_FLTO)
set(CMAKE_REQUIRED_FLAGS -flto\ -fuse-ld=gold)
CHECK_CXX_COMPILER_FLAG(-flto\ -fuse-ld=gold COMPILER_SUPPORTS_FLTO_GOLD)
if(COMPILER_SUPPORTS_FLTO_GOLD AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
set(default_options ${default_options} -flto)
set(linker_options ${linker_options} -flto\ -fuse-ld=gold)
endif()
unset(CMAKE_REQUIRED_FLAGS)
endif()
# Dwarf-4 support check # Dwarf-4 support check
set(CMAKE_REQUIRED_FLAGS -gdwarf-4) include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG(-gdwarf-4 COMPILER_SUPPORTS_DWARF4) CHECK_CXX_COMPILER_FLAG(-gdwarf-4 COMPILER_SUPPORTS_DWARF4)
if(COMPILER_SUPPORTS_DWARF4 AND (CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")) if(COMPILER_SUPPORTS_DWARF4 AND (CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo"))
set(default_options ${default_options} -gdwarf-4) add_compile_options(-gdwarf-4)
set(linker_options ${linker_options} -gdwarf-4)
endif()
unset(CMAKE_REQUIRED_FLAGS)
# -ipo flag check (Intel compiler link time optimization)
set(CMAKE_REQUIRED_FLAGS -ipo)
CHECK_CXX_COMPILER_FLAG(-ipo COMPILER_SUPPORTS_IPO)
if(COMPILER_SUPPORTS_IPO AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
set(default_options ${default_options} -ipo)
set(linker_options ${linker_options} -ipo)
endif()
unset(CMAKE_REQUIRED_FLAGS)
# Default hidden visibility check
set(CMAKE_REQUIRED_FLAGS -fvisibility=hidden)
CHECK_CXX_COMPILER_FLAG(-fvisibility=hidden COMPILER_SUPPORTS_HIDDEN)
if(COMPILER_SUPPORTS_HIDDEN)
set(default_options ${default_options} -fvisibility=hidden)
set(linker_options ${linker_options} -fvisibility=hidden)
endif()
unset(CMAKE_REQUIRED_FLAGS)
# Export dynamic. Required as modules mast call functions from main programm
set(CMAKE_REQUIRED_FLAGS -Wl,--export-dynamic)
CHECK_CXX_COMPILER_FLAG(-Wl,--export-dynamic COMPILER_SUPPORTS_EXPORTDYNAMIC)
if(COMPILER_SUPPORTS_EXPORTDYNAMIC)
set(linker_options ${linker_options} -Wl,--export-dynamic)
else()
message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no support of --export-dynamic. Please use a different C++ compiler.")
endif() endif()
unset(CMAKE_REQUIRED_FLAGS)
add_compile_options(${default_options})
set(CMAKE_REQUIRED_FLAGS ${saved_CMAKE_REQUIRED_FLAGS})
add_subdirectory(src) add_subdirectory(src)

4
src/CMakeLists.txt

@ -1,11 +1,13 @@
set(EXENAME odm) set(EXENAME odm)
find_library(netcdf netcdf REQUIRED) find_library(netcdf netcdf REQUIRED)
find_package(OpenMP REQUIRED)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
include_directories(../michlib/michlib) include_directories(../michlib/michlib)
file(GLOB srcs *.cpp) file(GLOB srcs *.cpp)
add_executable(${EXENAME} ${srcs}) add_executable(${EXENAME} ${srcs})
target_link_libraries(${EXENAME} ${linker_options} ${netcdf}) target_link_libraries(${EXENAME} ${linker_options} ${netcdf} OpenMP::OpenMP_CXX)
set_target_properties(${EXENAME} PROPERTIES POSITION_INDEPENDENT_CODE ON) set_target_properties(${EXENAME} PROPERTIES POSITION_INDEPENDENT_CODE ON)
install(TARGETS ${EXENAME}) install(TARGETS ${EXENAME})

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