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CMake: Do not unconditionally override settings without good reason

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fixes #342
This commit is contained in:
Dennis Klein 2021-05-28 14:07:30 +02:00 committed by Dennis Klein
parent 3c4158addb
commit 2e655823e4
2 changed files with 16 additions and 10 deletions
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2
CMakeLists.txt
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@ -11,7 +11,7 @@
cmake_minimum_required(VERSION 3.15 FATAL_ERROR) cmake_minimum_required(VERSION 3.15 FATAL_ERROR)
cmake_policy(VERSION 3.15...3.20) cmake_policy(VERSION 3.15...3.20)
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake) list(PREPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
include(GitHelper) include(GitHelper)
get_git_version() get_git_version()

24
cmake/FairMQProjectSettings.cmake
View File

@ -25,7 +25,9 @@ set(PROJECT_MIN_CXX_STANDARD 17)
if(CMAKE_CXX_STANDARD AND CMAKE_CXX_STANDARD VERSION_LESS PROJECT_MIN_CXX_STANDARD) if(CMAKE_CXX_STANDARD AND CMAKE_CXX_STANDARD VERSION_LESS PROJECT_MIN_CXX_STANDARD)
message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of ${PROJECT_MIN_CXX_STANDARD} is required.") message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of ${PROJECT_MIN_CXX_STANDARD} is required.")
endif() endif()
set(CMAKE_CXX_EXTENSIONS OFF) if(NOT DEFINED CMAKE_CXX_EXTENSIONS)
set(CMAKE_CXX_EXTENSIONS OFF)
endif()
if(NOT BUILD_SHARED_LIBS) if(NOT BUILD_SHARED_LIBS)
set(BUILD_SHARED_LIBS ON CACHE BOOL "Whether to build shared libraries or static archives") set(BUILD_SHARED_LIBS ON CACHE BOOL "Whether to build shared libraries or static archives")
@ -37,7 +39,9 @@ if(NOT CMAKE_POSITION_INDEPENDENT_CODE)
endif() endif()
# Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html) # Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) if(NOT DEFINED CMAKE_EXPORT_COMPILE_COMMANDS)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
endif()
# Define install dirs # Define install dirs
set(PROJECT_INSTALL_BINDIR ${CMAKE_INSTALL_BINDIR}) set(PROJECT_INSTALL_BINDIR ${CMAKE_INSTALL_BINDIR})
@ -47,17 +51,19 @@ set(PROJECT_INSTALL_DATADIR ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME_LOWER})
set(PROJECT_INSTALL_CMAKEMODDIR ${PROJECT_INSTALL_DATADIR}/cmake) set(PROJECT_INSTALL_CMAKEMODDIR ${PROJECT_INSTALL_DATADIR}/cmake)
# https://cmake.org/Wiki/CMake_RPATH_handling # https://cmake.org/Wiki/CMake_RPATH_handling
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON) if(NOT DEFINED CMAKE_INSTALL_RPATH_USE_LINK_PATH)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON)
endif()
list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}" isSystemDir) list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}" isSystemDir)
if("${isSystemDir}" STREQUAL "-1") if("${isSystemDir}" STREQUAL "-1")
if(CMAKE_SYSTEM_NAME STREQUAL "Linux") if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} "-Wl,--enable-new-dtags") list(APPEND CMAKE_EXE_LINKER_FLAGS "-Wl,--enable-new-dtags")
set(CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-Wl,--enable-new-dtags") list(APPEND CMAKE_SHARED_LINKER_FLAGS "-Wl,--enable-new-dtags")
set(CMAKE_INSTALL_RPATH "$ORIGIN/../${PROJECT_INSTALL_LIBDIR}") list(PREPEND CMAKE_INSTALL_RPATH "$ORIGIN/../${PROJECT_INSTALL_LIBDIR}")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin") elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(CMAKE_INSTALL_RPATH "@loader_path/../${PROJECT_INSTALL_LIBDIR}") list(PREPEND CMAKE_INSTALL_RPATH "@loader_path/../${PROJECT_INSTALL_LIBDIR}")
else() else()
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}") list(PREPEND CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}")
endif() endif()
endif() endif()
@ -85,7 +91,7 @@ if(CMAKE_GENERATOR STREQUAL "Ninja" AND
list(APPEND CMAKE_CXX_FLAGS "-fdiagnostics-color=always") list(APPEND CMAKE_CXX_FLAGS "-fdiagnostics-color=always")
endif() endif()
if(NOT PROJECT_VERSION_TWEAK) if(NOT DEFINED PROJECT_VERSION_TWEAK)
set(PROJECT_VERSION_HOTFIX 0) set(PROJECT_VERSION_HOTFIX 0)
else() else()
set(PROJECT_VERSION_HOTFIX ${PROJECT_VERSION_TWEAK}) set(PROJECT_VERSION_HOTFIX ${PROJECT_VERSION_TWEAK})