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cmake: Respect user-provided configuration-specific flags

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Hennadii Stepanov 2025-04-26 19:19:49 +01:00
parent de90b47ea0
commit 2f68531c53
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GPG key ID: 410108112E7EA81F
2 changed files with 11 additions and 7 deletions
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4
CMakeLists.txt
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@ -19,6 +19,10 @@ if(POLICY CMP0171)
cmake_policy(SET CMP0171 NEW)
endif()
# When adjusting CMake flag variables, we must not override those explicitly
# set by the user. These are a subset of the CACHE_VARIABLES property.
get_directory_property(precious_variables CACHE_VARIABLES)
#=============================
# Project / Package metadata
#=============================

14
cmake/module/ProcessConfigurations.cmake
View file

@ -106,13 +106,13 @@ endfunction()
function(replace_cxx_flag_in_config config old_flag new_flag)
string(TOUPPER "${config}" config_uppercase)
string(REGEX REPLACE "(^| )${old_flag}( |$)" "\\1${new_flag}\\2" new_flags "${CMAKE_CXX_FLAGS_${config_uppercase}}")
set(CMAKE_CXX_FLAGS_${config_uppercase} "${new_flags}" PARENT_SCOPE)
set(CMAKE_CXX_FLAGS_${config_uppercase} "${new_flags}"
CACHE STRING
"Flags used by the CXX compiler during ${config_uppercase} builds."
FORCE
)
set(var_name CMAKE_CXX_FLAGS_${config_uppercase})
if("${var_name}" IN_LIST precious_variables)
return()
endif()
string(REGEX REPLACE "(^| )${old_flag}( |$)" "\\1${new_flag}\\2" ${var_name} "${${var_name}}")
set(${var_name} "${${var_name}}" PARENT_SCOPE)
set_property(CACHE ${var_name} PROPERTY VALUE "${${var_name}}")
endfunction()
set_default_config(RelWithDebInfo)