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cmake: treat warnings as error in compiler flag tests

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selsta 2021-05-12 21:32:51 +02:00
parent 0a1ddc2eff
commit 9c0e681dc9
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1 changed files with 6 additions and 4 deletions
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10
CMakeLists.txt
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@ -106,16 +106,18 @@ function (die msg)
endfunction ()
function (add_c_flag_if_supported flag var)
string(REPLACE "-" "_" supported ${flag}_c)
check_c_compiler_flag(${flag} ${supported})
set(TMP "-Werror ${flag}")
string(REGEX REPLACE "[- ]" "_" supported ${TMP}_c)
check_c_compiler_flag(${TMP} ${supported})
if(${${supported}})
set(${var} "${${var}} ${flag}" PARENT_SCOPE)
endif()
endfunction()
function (add_cxx_flag_if_supported flag var)
string(REPLACE "-" "_" supported ${flag}_cxx)
check_cxx_compiler_flag(${flag} ${supported})
set(TMP "-Werror ${flag}")
string(REGEX REPLACE "[- ]" "_" supported ${TMP}_cxx)
check_cxx_compiler_flag(${TMP} ${supported})
if(${${supported}})
set(${var} "${${var}} ${flag}" PARENT_SCOPE)
endif()