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++ # Copyright (C) 2022 The Qt Company Ltd.
++ # SPDX-License-Identifier: BSD-3-Clause
++
++ # Blake2 contains a reference implementation, libb2 is a more efficient
++ # implementation of a subset of Blake2 functions and should be preferred.
++ # This Find module only searches for libb2 for that reason.
++
++ if(TARGET Libb2::Libb2)
++ set(Libb2_FOUND TRUE)
++ return()
++ endif()
++
++ find_package(PkgConfig QUIET)
++
++ if(PkgConfig_FOUND)
++ pkg_check_modules(Libb2 IMPORTED_TARGET "libb2")
++
++ if (TARGET PkgConfig::Libb2)
++ add_library(Libb2::Libb2 INTERFACE IMPORTED)
++ target_link_libraries(Libb2::Libb2 INTERFACE PkgConfig::Libb2)
++ set(Libb2_FOUND TRUE)
++ endif()
++ endif()
++
++ if(NOT TARGET Libb2::Libb2)
++ find_path(LIBB2_INCLUDE_DIR NAMES blake2.h)
++ find_library(LIBB2_LIBRARY NAMES b2)
++
++ if(LIBB2_LIBRARY AND LIBB2_INCLUDE_DIR)
++ add_library(Libb2::Libb2 UNKNOWN IMPORTED)
++ set_target_properties(Libb2::Libb2 PROPERTIES
++ IMPORTED_LOCATION ${LIBB2_LIBRARY}
++ INTERFACE_INCLUDE_DIRECTORIES ${LIBB2_INCLUDE_DIR}
++ )
++ endif()
++
++ include(FindPackageHandleStandardArgs)
++ find_package_handle_standard_args(Libb2 REQUIRED_VARS
++ LIBB2_LIBRARY
++ LIBB2_INCLUDE_DIR
++ )
++ endif()