96 lines
3.4 KiB
CMake
96 lines
3.4 KiB
CMake
include (CheckCXXCompilerFlag)
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include (CheckCCompilerFlag)
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# Try to add -Wflag if compiler supports it
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macro (add_warning flag)
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string(REPLACE "-" "_" underscored_flag ${flag})
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string(REPLACE "+" "x" underscored_flag ${underscored_flag})
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check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
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check_c_compiler_flag("-W${flag}" SUPPORTS_CFLAG_${underscored_flag})
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if (SUPPORTS_CXXFLAG_${underscored_flag})
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set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -W${flag}")
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else()
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message (STATUS "Flag -W${flag} is unsupported")
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endif()
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if (SUPPORTS_CFLAG_${underscored_flag})
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W${flag}")
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else()
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message(STATUS "Flag -W${flag} is unsupported")
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endif()
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endmacro()
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# Try to add -Wno flag if compiler supports it
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macro (no_warning flag)
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add_warning(no-${flag})
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endmacro ()
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# The same but only for specified target.
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macro (target_add_warning target flag)
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string (REPLACE "-" "_" underscored_flag ${flag})
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string (REPLACE "+" "x" underscored_flag ${underscored_flag})
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check_cxx_compiler_flag("-W${flag}" SUPPORTS_CXXFLAG_${underscored_flag})
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if (SUPPORTS_CXXFLAG_${underscored_flag})
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target_compile_options (${target} PRIVATE "-W${flag}")
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else ()
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message (STATUS "Flag -W${flag} is unsupported")
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endif ()
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endmacro ()
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macro (target_no_warning target flag)
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target_add_warning(${target} no-${flag})
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endmacro ()
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add_warning(all)
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add_warning(extra)
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add_warning(error) # treat all warnings as errors
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#if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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add_warning(strict-overflow=2)
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add_warning(suggest-override)
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add_warning(suggest-destructor-override)
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add_warning(unused)
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add_warning(unreachable-code)
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# TODO: these warnings are not enabled by default, but we consider them as useful and good to enable in the future
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no_warning(implicit-int-conversion)
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no_warning(implicit-float-conversion)
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no_warning(unused-member-function)
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no_warning(old-style-cast)
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no_warning(non-virtual-dtor)
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no_warning(float-conversion)
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no_warning(sign-conversion)
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no_warning(shorten-64-to-32)
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no_warning(padded)
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no_warning(missing-noreturn)
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#elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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# add_warning(pedantic)
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# # Add compiler options only to c++ compiler
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# function(add_cxx_compile_options option)
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# add_compile_options("$<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,CXX>:${option}>")
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# endfunction()
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# add_cxx_compile_options(-Wstrict-overflow=1)
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# add_cxx_compile_options(-Wdelete-incomplete)
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# add_cxx_compile_options(-Wduplicated-cond)
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# add_cxx_compile_options(-Wdisabled-optimization)
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# add_cxx_compile_options(-Winit-self)
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# add_cxx_compile_options(-Wbool-compare)
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# add_cxx_compile_options(-Wlogical-not-parentheses)
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# add_cxx_compile_options(-Wlogical-op)
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# add_cxx_compile_options(-Wmaybe-uninitialized)
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# add_cxx_compile_options(-Wmisleading-indentation)
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# add_cxx_compile_options(-Wno-return-local-addr)
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# add_cxx_compile_options(-Wodr)
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# add_cxx_compile_options(-Wpointer-arith)
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# add_cxx_compile_options(-Wredundant-decls)
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# add_cxx_compile_options(-Wreorder)
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# add_cxx_compile_options(-Wshift-negative-value)
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# add_cxx_compile_options(-Wsizeof-array-argument)
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# add_cxx_compile_options(-Wswitch-bool)
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# add_cxx_compile_options(-Wtautological-compare)
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# add_cxx_compile_options(-Wtrampolines)
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#endif()
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