Revision control

++ # Copyright (C) 2022 The Qt Company Ltd.
++ # SPDX-License-Identifier: BSD-3-Clause
++
++ find_package(PkgConfig QUIET)
++ if (PkgConfig_FOUND)
++ pkg_check_modules(Gypsy gypsy IMPORTED_TARGET)
++
++ if (TARGET PkgConfig::Gypsy)
++ mark_as_advanced(Gypsy_LIBRARIES Gypsy_INCLUDE_DIRS)
++ if (NOT TARGET Gypsy::Gypsy)
++ add_library(Gypsy::Gypsy INTERFACE IMPORTED)
++ target_link_libraries(Gypsy::Gypsy INTERFACE PkgConfig::Gypsy)
++ endif()
++ else()
++ set(Gypsy_FOUND 0)
++ endif()
++ endif()