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https://github.com/PDB-REDO/libcifpp.git
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88 lines
2.8 KiB
CMake
88 lines
2.8 KiB
CMake
# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2026 NKI/AVL, Netherlands Cancer Institute
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Simple check to see if we need a library for std::atomic
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if(TARGET std::atomic)
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return()
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endif()
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cmake_minimum_required(VERSION 3.10)
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include(CMakePushCheckState)
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include(CheckIncludeFileCXX)
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include(CheckCXXSourceRuns)
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cmake_push_check_state()
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check_include_file_cxx("atomic" _CXX_ATOMIC_HAVE_HEADER)
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mark_as_advanced(_CXX_ATOMIC_HAVE_HEADER)
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set(code [[
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#include <atomic>
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int main(int argc, char** argv) {
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std::atomic<long long> s;
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++s;
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return 0;
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}
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]])
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check_cxx_source_runs("${code}" _CXX_ATOMIC_BUILTIN)
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if(_CXX_ATOMIC_BUILTIN)
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set(_found 1)
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else()
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list(APPEND CMAKE_REQUIRED_LIBRARIES atomic)
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list(APPEND FOLLY_LINK_LIBRARIES atomic)
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check_cxx_source_runs("${code}" _CXX_ATOMIC_LIB_NEEDED)
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if (NOT _CXX_ATOMIC_LIB_NEEDED)
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message(FATAL_ERROR "unable to link C++ std::atomic code: you may need \
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to install GNU libatomic")
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else()
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set(_found 1)
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endif()
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endif()
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if(_found)
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add_library(std::atomic INTERFACE IMPORTED)
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set_property(TARGET std::atomic APPEND PROPERTY INTERFACE_COMPILE_FEATURES cxx_std_14)
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if(_CXX_ATOMIC_BUILTIN)
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# Nothing to add...
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elseif(_CXX_ATOMIC_LIB_NEEDED)
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set_target_properties(std::atomic PROPERTIES IMPORTED_LIBNAME atomic)
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set(STDCPPATOMIC_LIBRARY atomic)
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endif()
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endif()
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cmake_pop_check_state()
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set(Atomic_FOUND ${_found} CACHE BOOL "TRUE if we can run a program using std::atomic" FORCE)
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mark_as_advanced(Atomic_FOUND)
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if(Atomic_FIND_REQUIRED AND NOT Atomic_FOUND)
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message(FATAL_ERROR "Cannot run simple program using std::atomic")
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endif()
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