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include(CheckCXXCompilerFlag)
function(add_cxx_flag_if_supported_to_targets flagname targets)
check_cxx_compiler_flag("${flagname}" HAVE_FLAG_${flagname})
if (HAVE_FLAG_${flagname})
foreach(target ${targets})
target_compile_options(${target} PUBLIC ${flagname})
endforeach()
endif()
endfunction()
# Assumes that it is only called for development builds, where warnings
# and Werror is desired, so it also enables Werror.
function(add_warnings_to_targets targets)
LIST(LENGTH targets TARGETS_LEN)
# For now we just assume 2 possibilities: msvc and msvc-like compilers,
# and other.
if (MSVC)
foreach(target ${targets})
# Force MSVC to consider everything as encoded in utf-8
target_compile_options( ${target} PRIVATE /utf-8 )
# Enable Werror equivalent
if (CATCH_ENABLE_WERROR)
target_compile_options( ${target} PRIVATE /WX )
endif()
# MSVC is currently handled specially
if ( CMAKE_CXX_COMPILER_ID MATCHES "MSVC" )
STRING(REGEX REPLACE "/W[0-9]" "/W4" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) # override default warning level
target_compile_options( ${target} PRIVATE /w44265 /w44061 /w44062 /w45038 )
endif()
endforeach()
endif()
if (NOT MSVC)
set(CHECKED_WARNING_FLAGS
"-Wall"
"-Wextra"
"-Wpedantic"
"-Wweak-vtables"
"-Wunreachable-code"
"-Wmissing-declarations"
"-Wexit-time-destructors"
"-Wglobal-constructors"
"-Wmissing-noreturn"
"-Wparentheses"
"-Wextra-semi-stmt"
"-Wunreachable-code"
"-Wstrict-aliasing"
"-Wreturn-std-move"
"-Wmissing-braces"
"-Wdeprecated"
"-Wvla"
"-Wundef"
"-Wmisleading-indentation"
"-Wcatch-value"
"-Wabsolute-value"
"-Wreturn-std-move"
"-Wunused-parameter"
"-Wunused-function"
"-Wcall-to-pure-virtual-from-ctor-dtor"
"-Wdeprecated-register"
"-Wsuggest-override"
"-Wshadow"
)
foreach(warning ${CHECKED_WARNING_FLAGS})
add_cxx_flag_if_supported_to_targets(${warning} "${targets}")
endforeach()
if (CATCH_ENABLE_WERROR)
foreach(target ${targets})
# Enable Werror equivalent
target_compile_options( ${target} PRIVATE -Werror )
endforeach()
endif()
endif()
endfunction()
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