osrm-backend/cmake/warnings.cmake
2024-06-30 21:07:49 +02:00

88 lines
2.6 KiB
CMake

include (CheckCXXCompilerFlag)
include (CheckCCompilerFlag)
# Try to add -Wflag if compiler supports it
macro (add_warning flag)
string(REPLACE "-" "_" underscored_flag ${flag})
string(REPLACE "+" "x" underscored_flag ${underscored_flag})
check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
check_c_compiler_flag("-W${flag}" SUPPORTS_CFLAG_${underscored_flag})
if (SUPPORTS_CXXFLAG_${underscored_flag})
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -W${flag}")
else()
message (STATUS "Flag -W${flag} is unsupported")
endif()
if (SUPPORTS_CFLAG_${underscored_flag})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W${flag}")
else()
message(STATUS "Flag -W${flag} is unsupported")
endif()
endmacro()
# Try to add -Wno flag if compiler supports it
macro (no_warning flag)
add_warning(no-${flag})
endmacro ()
# The same but only for specified target.
macro (target_add_warning target flag)
string (REPLACE "-" "_" underscored_flag ${flag})
string (REPLACE "+" "x" underscored_flag ${underscored_flag})
check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
if (SUPPORTS_CXXFLAG_${underscored_flag})
target_compile_options (${target} PRIVATE "-W${flag}")
else ()
message (STATUS "Flag -W${flag} is unsupported")
endif ()
endmacro ()
macro (target_no_warning target flag)
target_add_warning(${target} no-${flag})
endmacro ()
add_warning(all)
add_warning(extra)
add_warning(pedantic)
add_warning(error) # treat all warnings as errors
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
add_warning(strict-overflow=1)
endif()
add_warning(suggest-override)
add_warning(suggest-destructor-override)
add_warning(unused)
add_warning(unreachable-code)
add_warning(delete-incomplete)
add_warning(duplicated-cond)
add_warning(disabled-optimization)
add_warning(init-self)
add_warning(bool-compare)
add_warning(logical-not-parentheses)
add_warning(logical-op)
add_warning(misleading-indentation)
# `no-` prefix is part of warning name(i.e. doesn't mean we are disabling it)
add_warning(no-return-local-addr)
add_warning(odr)
add_warning(pointer-arith)
add_warning(redundant-decls)
add_warning(reorder)
add_warning(shift-negative-value)
add_warning(sizeof-array-argument)
add_warning(switch-bool)
add_warning(tautological-compare)
add_warning(trampolines)
# these warnings are not enabled by default
# no_warning(name-of-warning)
no_warning(deprecated-comma-subscript)
no_warning(comma-subscript)
no_warning(ambiguous-reversed-operator)
no_warning(restrict)
no_warning(free-nonheap-object)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
no_warning(stringop-overflow)
endif()