3
0
mirror of https://github.com/triqs/dft_tools synced 2024-11-18 12:03:50 +01:00
dft_tools/share/cmake/extract_flags.cmake

117 lines
5.0 KiB
CMake

# Copyright (c) 2019-2020 Simons Foundation
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You may obtain a copy of the License at
# https://www.gnu.org/licenses/gpl-3.0.txt
# Recursively fetch all targets that the interface of a target depends upon
macro(get_all_interface_targets name target)
get_property(TARGET_LINK_LIBRARIES TARGET ${target} PROPERTY INTERFACE_LINK_LIBRARIES)
foreach(lib IN LISTS TARGET_LINK_LIBRARIES)
if(TARGET ${lib})
# Append to list
list(APPEND ${name}_INTERFACE_TARGETS ${lib})
# Recure into target dependencies
get_all_interface_targets(${name} ${lib})
endif()
endforeach()
endmacro()
# Extract the property from the target and recursively from all targets it depends upon
macro(get_property_recursive)
cmake_parse_arguments(get_property_recursive "" "TARGET" "PROPERTY" ${ARGN})
set(target ${get_property_recursive_TARGET})
set(property ${get_property_recursive_PROPERTY})
get_all_interface_targets(${target} ${target})
foreach(t IN LISTS ${target}_INTERFACE_TARGETS ITEMS ${target})
get_property(p TARGET ${t} PROPERTY ${property})
list(APPEND ${ARGV0} ${p})
endforeach()
# Clean duplicates and any occurance of '/usr/include' dirs
if(${ARGV0})
list(REMOVE_DUPLICATES ${ARGV0})
list(REMOVE_ITEM ${ARGV0} /usr/include)
endif()
endmacro()
# Recursively fetch all compiler flags attached to the interface of a target
macro(extract_flags)
cmake_parse_arguments(ARG "BUILD_INTERFACE" "" "" ${ARGN})
set(target ${ARGV0})
unset(${target}_CXXFLAGS)
unset(${target}_LDFLAGS)
get_property_recursive(opts TARGET ${target} PROPERTY INTERFACE_COMPILE_OPTIONS)
foreach(opt ${opts})
set(${target}_LDFLAGS "${${target}_LDFLAGS} ${opt}")
set(${target}_CXXFLAGS "${${target}_CXXFLAGS} ${opt}")
endforeach()
get_property_recursive(defs TARGET ${target} PROPERTY INTERFACE_COMPILE_DEFINITIONS)
foreach(def ${defs})
set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -D${def}")
endforeach()
get_property_recursive(inc_dirs TARGET ${target} PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
get_property_recursive(sys_inc_dirs TARGET ${target} PROPERTY INTERFACE_SYSTEM_INCLUDE_DIRECTORIES)
if(inc_dirs)
list(REMOVE_ITEM sys_inc_dirs ${inc_dirs})
endif()
foreach(dir ${inc_dirs})
set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
endforeach()
foreach(dir ${sys_inc_dirs})
set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -isystem${dir}")
endforeach()
get_property_recursive(libs TARGET ${target} PROPERTY INTERFACE_LINK_LIBRARIES)
foreach(lib ${libs})
if(NOT TARGET ${lib} AND NOT IS_DIRECTORY ${lib})
set(${target}_LDFLAGS "${${target}_LDFLAGS} ${lib}")
endif()
endforeach()
# ==== We have to replace generator expressions explicitly ====
if(ARG_BUILD_INTERFACE)
string(REGEX REPLACE "\\$<BUILD_INTERFACE:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE "\\$<BUILD_INTERFACE:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
else()
string(REGEX REPLACE "\\$<INSTALL_INTERFACE:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE "\\$<INSTALL_INTERFACE:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:GNU>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:GNU>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:Clang>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:Clang>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:AppleClang>:([^ ]*)>" "\\1" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE "\\$<\\$<CXX_COMPILER_ID:AppleClang>:([^ ]*)>" "\\1" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
endif()
# Remove all remaining generator expressions
string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE " [^ ]*\\$<[^ ]*:[^>]*>" "" ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
# Filter out system directories from LDFLAGS and CXXFLAGS
string(REGEX REPLACE " -L/usr/lib " " " ${target}_LDFLAGS "${${target}_LDFLAGS}")
string(REGEX REPLACE " -I/usr/include " " " ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
string(REGEX REPLACE " -isystem/usr/include " " " ${target}_CXXFLAGS "${${target}_CXXFLAGS}")
endmacro()