Celestia

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# Finds the Wayland client libraries
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# Also supports components "protocols" and "scanner"
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find_package(PkgConfig QUIET)
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set(WaylandModules wayland-client)
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if(protocols IN_LIST Wayland_FIND_COMPONENTS)
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    list(APPEND WaylandModules wayland-protocols)
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endif()
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if(scanner IN_LIST Wayland_FIND_COMPONENTS)
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    list(APPEND WaylandModules wayland-scanner)
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endif()
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pkg_check_modules(PKG_Wayland QUIET ${WaylandModules})
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set(Wayland_VERSION ${PKG_Wayland_VERSION})
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set(Wayland_DEFINITIONS ${PKG_Wayland_CFLAGS})
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mark_as_advanced(Wayland_DEFINITIONS)
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find_path(Wayland_CLIENT_INCLUDE_DIR NAMES wayland-client.h HINTS ${PKG_Wayland_INCLUDE_DIRS})
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find_library(Wayland_CLIENT_LIBRARIES NAMES wayland-client HINTS ${PKG_Wayland_LIBRARY_DIRS})
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mark_as_advanced(Wayland_CLIENT_INCLUDE_DIR Wayland_CLIENT_LIBRARIES)
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if(protocols IN_LIST Wayland_FIND_COMPONENTS)
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    pkg_get_variable(Wayland_PROTOCOLS_DATADIR wayland-protocols pkgdatadir)
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    mark_as_advanced(Wayland_PROTOCOLS_DATADIR)
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endif()
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if(scanner IN_LIST Wayland_FIND_COMPONENTS)
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    pkg_get_variable(Wayland_SCANNER_EXECUTABLE_DIR wayland-scanner bindir)
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    find_program(Wayland_SCANNER_EXECUTABLE NAMES wayland-scanner HINTS ${Wayland_SCANNER_EXECUTABLE_DIR})
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    mark_as_advanced(Wayland_SCANNER_EXECUTABLE Wayland_SCANNER_EXECUTABLE_DIR)
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endif()
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set(Wayland_INCLUDE_DIR ${Wayland_CLIENT_INCLUDE_DIR})
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set(Wayland_LIBRARIES ${Wayland_CLIENT_LIBRARIES})
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set(Wayland_DATADIR ${Wayland_PROTOCOLS_DATADIR})
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list(REMOVE_DUPLICATES Wayland_INCLUDE_DIR)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Wayland
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    FOUND_VAR Wayland_FOUND
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    VERSION_VAR Wayland_VERSION
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    REQUIRED_VARS Wayland_LIBRARIES)
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if (Wayland_FOUND AND NOT TARGET Wayland::Client)
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    add_library(Wayland::Client UNKNOWN IMPORTED)
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    set_target_properties(Wayland::Client PROPERTIES
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        INTERFACE_INCLUDE_DIRECTORIES "${Wayland_CLIENT_INCLUDE_DIR}"
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        IMPORTED_LOCATION "${Wayland_CLIENT_LIBRARIES}")
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endif()
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if (Wayland_SCANNER_EXECUTABLE AND NOT TARGET Wayland::Scanner)
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    add_executable(Wayland::Scanner IMPORTED)
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    set_target_properties(Wayland::Scanner PROPERTIES
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        IMPORTED_LOCATION "${Wayland_SCANNER_EXECUTABLE}")
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endif()
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