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21 changes: 20 additions & 1 deletion cmake/helpers.cmake
Original file line number Diff line number Diff line change
Expand Up @@ -176,14 +176,33 @@ function(get_program_version_major_minor name ret)
PARENT_SCOPE)
endfunction()

# Checks compiler for given ${flag}, stores the output in C_HAS_${flag} and
# CXX_HAS_${flag} (if compiler supports C++)
function(check_compilers_flag flag)
check_c_compiler_flag("${flag}" "C_HAS_${flag}")
if(CMAKE_CXX_COMPILE_FEATURES)
check_cxx_compiler_flag("${flag}" "CXX_HAS_${flag}")
endif()
endfunction()

function(check_add_target_compile_options target)
foreach(option ${ARGN})
check_compilers_flag(${option})
if(C_HAS_${option} AND CXX_HAS_${option})
target_compile_options(${target} PRIVATE ${option})
endif()
endforeach()
endfunction()

function(add_umf_target_compile_options name)
check_add_target_compile_options(${name} "-Wno-covered-switch-default")

if(NOT MSVC)
target_compile_options(
${name}
PRIVATE -fPIC
-Wall
-Wextra
-Werror
-Wpedantic
-Wempty-body
-Wunused-parameter
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