mirror of https://github.com/triqs/dft_tools
96 lines
3.6 KiB
CMake
96 lines
3.6 KiB
CMake
# Copyright (c) 2020 Simons Foundation
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You may obtain a copy of the License at
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# https://www.gnu.org/licenses/gpl-3.0.txt
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# Consider ROOT env variables in find_package
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if(POLICY CMP0074)
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cmake_policy(SET CMP0074 NEW)
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endif()
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# Make sure that imported targets are always global
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get_property(IMPORTED_ALWAYS_GLOBAL GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL)
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if(NOT IMPORTED_ALWAYS_GLOBAL)
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function(add_library)
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set(_args ${ARGN})
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if ("${_args}" MATCHES ";IMPORTED")
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list(APPEND _args GLOBAL)
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endif()
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_add_library(${_args})
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endfunction()
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set_property(GLOBAL PROPERTY IMPORTED_ALWAYS_GLOBAL TRUE)
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endif()
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# Define External Dependency Function
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function(external_dependency)
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cmake_parse_arguments(ARG "EXCLUDE_FROM_ALL;BUILD_ALWAYS" "VERSION;GIT_REPO;GIT_TAG" "" ${ARGN})
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# -- Was dependency already found?
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get_property(${ARGV0}_FOUND GLOBAL PROPERTY ${ARGV0}_FOUND)
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if(${ARGV0}_FOUND)
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message(STATUS "Dependency ${ARGV0} was already resolved.")
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return()
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endif()
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# -- Try to find package in system.
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if(NOT ARG_BUILD_ALWAYS AND NOT Build_Deps STREQUAL "Always")
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find_package(${ARGV0} ${ARG_VERSION} QUIET HINTS ${CMAKE_INSTALL_PREFIX})
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if(${ARGV0}_FOUND)
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message(STATUS "Found dependency ${ARGV0} in system ${${ARGV0}_ROOT}")
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return()
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elseif(Build_Deps STREQUAL "Never")
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message(FATAL_ERROR "Could not find dependency ${ARGV0} in system. Please install the dependency manually or use -DBuild_Deps=IfNotFound during cmake configuration to automatically build all dependencies that are not found.")
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endif()
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endif()
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# -- Build package from source
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message(STATUS " =============== Configuring Dependency ${ARGV0} =============== ")
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if(ARG_EXCLUDE_FROM_ALL)
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set(subdir_opts EXCLUDE_FROM_ALL)
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set(Build_Tests OFF)
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set(Build_Documentation OFF)
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endif()
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if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0})
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message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_CURRENT_SOURCE_DIR}/${ARGV0}")
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add_subdirectory(${ARGV0} ${subdir_opts})
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elseif(IS_DIRECTORY ${CMAKE_SOURCE_DIR}/deps/${ARGV0})
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message(STATUS "Found sources for dependency ${ARGV0} at ${CMAKE_SOURCE_DIR}/deps/${ARGV0}")
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add_subdirectory(${ARGV0} ${subdir_opts})
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elseif(ARG_GIT_REPO)
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set(bin_dir ${CMAKE_CURRENT_BINARY_DIR}/${ARGV0})
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set(src_dir ${bin_dir}_src)
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if(NOT IS_DIRECTORY ${src_dir})
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if(ARG_GIT_TAG)
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set(clone_opts --branch ${ARG_GIT_TAG} -c advice.detachedHead=false)
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endif()
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if(NOT GIT_EXECUTABLE)
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find_package(Git REQUIRED)
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endif()
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execute_process(COMMAND ${GIT_EXECUTABLE} clone ${ARG_GIT_REPO} --depth 1 ${clone_opts} ${src_dir}
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RESULT_VARIABLE clone_failed
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ERROR_VARIABLE clone_error
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)
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if(clone_failed)
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message(FATAL_ERROR "Failed to clone sources for dependency ${ARGV0}.\n ${clone_error}")
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endif()
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endif()
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add_subdirectory(${src_dir} ${bin_dir} ${subdir_opts})
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else()
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message(FATAL_ERROR "Could not find or build dependency ${ARGV0}")
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endif()
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message(STATUS " =============== End ${ARGV0} Configuration =============== ")
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set_property(GLOBAL PROPERTY ${ARGV0}_FOUND TRUE)
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endfunction()
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