slackware-current/source/d/llvm/missing-runtime-modules/HandleFlags.cmake
Patrick J Volkerding 04d707a7ba Mon Sep 25 19:19:27 UTC 2023
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d/llvm-17.0.1-x86_64-1.txz:  Upgraded.
  Shared library .so-version bump.
d/lua-5.4.6-x86_64-4.txz:  Rebuilt.
  Fixed prefix and $LIBDIRSUFFIX in lua.pc. Thanks to ArTourter.
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kde/kdevelop-23.08.1-x86_64-2.txz:  Rebuilt.
  Recompiled against llvm-17.0.1.
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  Compiled against llvm-17.0.1.
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  Compiled against llvm-17.0.1.
x/mesa-23.2.0_rc4-x86_64-1.txz:  Upgraded.
  Compiled against llvm-17.0.1.
2023-09-25 22:29:45 +02:00

113 lines
3.9 KiB
CMake

include(CheckCXXCompilerFlag)
unset(add_flag_if_supported)
# Mangle the name of a compiler flag into a valid CMake identifier.
# Ex: --std=c++11 -> STD_EQ_CXX11
macro(mangle_name str output)
string(STRIP "${str}" strippedStr)
string(REGEX REPLACE "^/" "" strippedStr "${strippedStr}")
string(REGEX REPLACE "^-+" "" strippedStr "${strippedStr}")
string(REGEX REPLACE "-+$" "" strippedStr "${strippedStr}")
string(REPLACE "-" "_" strippedStr "${strippedStr}")
string(REPLACE "=" "_EQ_" strippedStr "${strippedStr}")
string(REPLACE "+" "X" strippedStr "${strippedStr}")
string(TOUPPER "${strippedStr}" ${output})
endmacro()
# Remove a list of flags from all CMake variables that affect compile flags.
# This can be used to remove unwanted flags specified on the command line
# or added in other parts of LLVM's cmake configuration.
macro(remove_flags)
foreach(var ${ARGN})
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}")
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE "${var}" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
string(REPLACE "${var}" "" CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
string(REPLACE "${var}" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
string(REPLACE "${var}" "" CMAKE_SHARED_MODULE_FLAGS "${CMAKE_SHARED_MODULE_FLAGS}")
remove_definitions(${var})
endforeach()
endmacro(remove_flags)
macro(check_flag_supported flag)
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
endmacro()
macro(append_flags DEST)
foreach(value ${ARGN})
list(APPEND ${DEST} ${value})
list(APPEND ${DEST} ${value})
endforeach()
endmacro()
# If the specified 'condition' is true then append the specified list of flags to DEST
macro(append_flags_if condition DEST)
if (${condition})
list(APPEND ${DEST} ${ARGN})
endif()
endmacro()
# Add each flag in the list specified by DEST if that flag is supported by the current compiler.
macro(append_flags_if_supported DEST)
foreach(flag ${ARGN})
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
append_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${DEST} ${flag})
endforeach()
endmacro()
# Add a macro definition if condition is true.
macro(define_if condition def)
if (${condition})
add_definitions(${def})
endif()
endmacro()
# Add a macro definition if condition is not true.
macro(define_if_not condition def)
if (NOT ${condition})
add_definitions(${def})
endif()
endmacro()
# Add a macro definition to the __config_site file if the specified condition
# is 'true'. Note that '-D${def}' is not added. Instead it is expected that
# the build include the '__config_site' header.
macro(config_define_if condition def)
if (${condition})
set(${def} ON)
endif()
endmacro()
macro(config_define_if_not condition def)
if (NOT ${condition})
set(${def} ON)
endif()
endmacro()
macro(config_define value def)
set(${def} ${value})
endmacro()
# Turn a comma separated CMake list into a space separated string.
macro(split_list listname)
string(REPLACE ";" " " ${listname} "${${listname}}")
endmacro()
# For each specified flag, add that compile flag to the provided target.
# The flags are added with the given visibility, i.e. PUBLIC|PRIVATE|INTERFACE.
function(target_add_compile_flags_if_supported target visibility)
foreach(flag ${ARGN})
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
if (CXX_SUPPORTS_${flagname}_FLAG)
target_compile_options(${target} ${visibility} ${flag})
endif()
endforeach()
endfunction()