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include(CheckCXXCompilerFlag)
###################################################
# Activate C++17
#
# Uses: target_activate_cpp17(buildtarget)
###################################################
function(target_activate_cpp14 TARGET)
set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD 17)
set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD_REQUIRED ON)
# We need ENABLE_EXPORTS so that boost::stacktrace works correctly
set_property(TARGET ${TARGET} PROPERTY ENABLE_EXPORTS 1)
endfunction(target_activate_cpp14)
# Find clang-tidy executable (for use in target_enable_style_warnings)
if (USE_CLANG_TIDY)
find_program(
CLANG_TIDY_EXE
NAMES "clang-tidy"
DOC "Path to clang-tidy executable"
)
if(NOT CLANG_TIDY_EXE)
message(FATAL_ERROR "clang-tidy not found. Please install clang-tidy or run without -DUSE_CLANG_TIDY=on.")
else()
set(CLANG_TIDY_OPTIONS "-system-headers=0")
if (CLANG_TIDY_WARNINGS_AS_ERRORS)
set(CLANG_TIDY_OPTIONS "${CLANG_TIDY_OPTIONS}" "-warnings-as-errors=*")
endif()
message(STATUS "Clang-tidy is enabled. Executable: ${CLANG_TIDY_EXE} Arguments: ${CLANG_TIDY_OPTIONS}")
set(CLANG_TIDY_CLI "${CLANG_TIDY_EXE}" "${CLANG_TIDY_OPTIONS}")
endif()
endif()
# Find iwyu (for use in target_enable_style_warnings)
if (USE_IWYU)
find_program(
IWYU_EXE NAMES
include-what-you-use
iwyu
)
if(NOT IWYU_EXE)
message(FATAL_ERROR "include-what-you-use not found. Please install iwyu or run without -DUSE_IWYU=on.")
else()
message(STATUS "iwyu found: ${IWYU_EXE}")
set(DO_IWYU "${IWYU_EXE}")
endif()
endif()
#################################################
# Enable style compiler warnings
#
# Uses: target_enable_style_warnings(buildtarget)
#################################################
function(target_enable_style_warnings TARGET)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
# TODO
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
target_compile_options(${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?
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
target_compile_options(${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?
endif()
if (USE_WERROR)
message(STATUS "Building ${TARGET} with -Werror")
target_compile_options(${TARGET} PRIVATE -Werror)
endif()
# Enable clang-tidy
if(USE_CLANG_TIDY)
set_target_properties(
${TARGET} PROPERTIES
CXX_CLANG_TIDY "${CLANG_TIDY_CLI}"
)
endif()
if(USE_IWYU)
set_target_properties(
${TARGET} PROPERTIES
CXX_INCLUDE_WHAT_YOU_USE "${DO_IWYU}"
)
endif()
endfunction(target_enable_style_warnings)
##################################################
# Add boost to the project
#
# Uses:
# target_add_boost(buildtarget)
##################################################
function(target_add_boost TARGET)
target_link_libraries(${TARGET} PUBLIC CryfsDependencies_boost)
target_compile_definitions(${TARGET} PUBLIC BOOST_THREAD_VERSION=4)
endfunction(target_add_boost)
##################################################
# Specify that a specific minimal version of gcc is required
#
# Uses:
# require_gcc_version(4.9)
##################################################
function(require_gcc_version VERSION)
if (CMAKE_COMPILER_IS_GNUCXX)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
if (GCC_VERSION VERSION_LESS ${VERSION})
message(FATAL_ERROR "Needs at least gcc version ${VERSION}, found gcc ${GCC_VERSION}")
endif (GCC_VERSION VERSION_LESS ${VERSION})
endif (CMAKE_COMPILER_IS_GNUCXX)
endfunction(require_gcc_version)
##################################################
# Specify that a specific minimal version of clang is required
#
# Uses:
# require_clang_version(3.5)
##################################################
function(require_clang_version VERSION)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
message(FATAL_ERROR "Needs at least clang version ${VERSION}, found clang ${CMAKE_CXX_COMPILER_VERSION}")
endif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
endfunction(require_clang_version)
include(cmake-utils/CryfsTargetArch.cmake)
function(get_target_architecture output_var)
cryfs_target_architecture(local_output_var)
set(${output_var} ${local_output_var} PARENT_SCOPE)
endfunction()
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