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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 edde96376a
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2 changed files with 11 additions and 8 deletions
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4
CMakeLists.txt
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@ -19,6 +19,10 @@ if(POLICY CMP0171)
cmake_policy(SET CMP0171 NEW) cmake_policy(SET CMP0171 NEW)
endif() 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 # Project / Package metadata
#============================= #=============================

15
cmake/module/ProcessConfigurations.cmake
View File

@ -105,14 +105,13 @@ function(remove_cxx_flag_from_all_configs flag)
endfunction() endfunction()
function(replace_cxx_flag_in_config config old_flag new_flag) function(replace_cxx_flag_in_config config old_flag new_flag)
string(TOUPPER "${config}" config_uppercase) string(TOUPPER "CMAKE_CXX_FLAGS_${config}" var_name)
string(REGEX REPLACE "(^| )${old_flag}( |$)" "\\1${new_flag}\\2" new_flags "${CMAKE_CXX_FLAGS_${config_uppercase}}") if("${var_name}" IN_LIST precious_variables)
set(CMAKE_CXX_FLAGS_${config_uppercase} "${new_flags}" PARENT_SCOPE) return()
set(CMAKE_CXX_FLAGS_${config_uppercase} "${new_flags}" endif()
CACHE STRING string(REGEX REPLACE "(^| )${old_flag}( |$)" "\\1${new_flag}\\2" ${var_name} "${${var_name}}")
"Flags used by the CXX compiler during ${config_uppercase} builds." set(${var_name} "${${var_name}}" PARENT_SCOPE)
FORCE set_property(CACHE ${var_name} PROPERTY VALUE "${${var_name}}")
)
endfunction() endfunction()
set_default_config(RelWithDebInfo) set_default_config(RelWithDebInfo)