137 lines
5.8 KiB
CMake
137 lines
5.8 KiB
CMake
include(CheckCXXCompilerFlag)
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###################################################
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# Activate C++14
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#
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# Uses: target_activate_cpp14(buildtarget)
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###################################################
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function(target_activate_cpp14 TARGET)
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if(MSVC)
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# Required by range-v3, see its README.md
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set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD 17)
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else()
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set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD 14)
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endif()
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set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD_REQUIRED ON)
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# Ideally, we'd like to use libc++ on linux as well, but:
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# - http://stackoverflow.com/questions/37096062/get-a-basic-c-program-to-compile-using-clang-on-ubuntu-16
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# - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=808086
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# so only use it on Apple systems...
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if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND APPLE)
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target_compile_options(${TARGET} PUBLIC -stdlib=libc++)
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endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND APPLE)
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endfunction(target_activate_cpp14)
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# Find clang-tidy executable (for use in target_enable_style_warnings)
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if (USE_CLANG_TIDY)
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find_program(
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CLANG_TIDY_EXE
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NAMES "clang-tidy"
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DOC "Path to clang-tidy executable"
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)
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if(NOT CLANG_TIDY_EXE)
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message(FATAL_ERROR "clang-tidy not found. Please install clang-tidy or run without -DUSE_CLANG_TIDY=on.")
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else()
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set(CLANG_TIDY_OPTIONS "-system-headers=0")
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if (CLANG_TIDY_WARNINGS_AS_ERRORS)
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set(CLANG_TIDY_OPTIONS "${CLANG_TIDY_OPTIONS}" "-warnings-as-errors=*")
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endif()
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message(STATUS "Clang-tidy is enabled. Executable: ${CLANG_TIDY_EXE} Arguments: ${CLANG_TIDY_OPTIONS}")
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set(CLANG_TIDY_CLI "${CLANG_TIDY_EXE}" "${CLANG_TIDY_OPTIONS}")
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endif()
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endif()
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# Find iwyu (for use in target_enable_style_warnings)
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if (USE_IWYU)
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find_program(
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IWYU_EXE NAMES
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include-what-you-use
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iwyu
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)
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if(NOT IWYU_EXE)
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message(FATAL_ERROR "include-what-you-use not found. Please install iwyu or run without -DUSE_IWYU=on.")
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else()
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message(STATUS "iwyu found: ${IWYU_EXE}")
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set(DO_IWYU "${IWYU_EXE}")
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endif()
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endif()
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#################################################
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# Enable style compiler warnings
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#
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# Uses: target_enable_style_warnings(buildtarget)
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#################################################
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function(target_enable_style_warnings TARGET)
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if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
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# TODO
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elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
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target_compile_options(${TARGET} PRIVATE -Wall -Wextra -Wold-style-cast -Wcast-align -Wno-unused-command-line-argument) # TODO consider -Wpedantic -Wchkp -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wlogical-op -Wmissing-include-dirs -Wnoexcept -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-promo -Wstrict-null-sentinel -Wstrict-overflow=5 -Wundef -Wno-unused -Wno-variadic-macros -Wno-parentheses -fdiagnostics-show-option -Wconversion and others?
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elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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target_compile_options(${TARGET} PRIVATE -Wall -Wextra -Wold-style-cast -Wcast-align -Wno-maybe-uninitialized) # TODO consider -Wpedantic -Wchkp -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wlogical-op -Wmissing-include-dirs -Wnoexcept -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-promo -Wstrict-null-sentinel -Wstrict-overflow=5 -Wundef -Wno-unused -Wno-variadic-macros -Wno-parentheses -fdiagnostics-show-option -Wconversion and others?
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endif()
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if (USE_WERROR)
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message(STATUS Building ${TARGET} with -Werror)
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target_compile_options(${TARGET} PRIVATE -Werror)
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endif()
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# Enable clang-tidy
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if(USE_CLANG_TIDY)
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set_target_properties(
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${TARGET} PROPERTIES
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CXX_CLANG_TIDY "${CLANG_TIDY_CLI}"
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)
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endif()
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if(USE_IWYU)
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set_target_properties(
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${TARGET} PROPERTIES
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CXX_INCLUDE_WHAT_YOU_USE "${DO_IWYU}"
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)
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endif()
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endfunction(target_enable_style_warnings)
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##################################################
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# Add boost to the project
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#
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# Uses:
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# target_add_boost(buildtarget)
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##################################################
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function(target_add_boost TARGET)
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target_compile_definitions(${TARGET} PUBLIC BOOST_THREAD_VERSION=4)
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endfunction(target_add_boost)
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##################################################
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# Specify that a specific minimal version of gcc is required
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#
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# Uses:
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# require_gcc_version(4.9)
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##################################################
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function(require_gcc_version VERSION)
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if (CMAKE_COMPILER_IS_GNUCXX)
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execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
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if (GCC_VERSION VERSION_LESS ${VERSION})
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message(FATAL_ERROR "Needs at least gcc version ${VERSION}, found gcc ${GCC_VERSION}")
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endif (GCC_VERSION VERSION_LESS ${VERSION})
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endif (CMAKE_COMPILER_IS_GNUCXX)
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endfunction(require_gcc_version)
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##################################################
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# Specify that a specific minimal version of clang is required
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#
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# Uses:
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# require_clang_version(3.5)
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##################################################
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function(require_clang_version VERSION)
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
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message(FATAL_ERROR "Needs at least clang version ${VERSION}, found clang ${CMAKE_CXX_COMPILER_VERSION}")
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endif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
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endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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endfunction(require_clang_version)
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include(cmake-utils/TargetArch.cmake)
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function(get_target_architecture output_var)
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target_architecture(local_output_var)
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set(${output_var} ${local_output_var} PARENT_SCOPE)
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endfunction()
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