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# Needed for CMAKE_SYSTEM_NAME, CMAKE_LIBRARY_ARCHITECTURE, FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS
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enable_language(C)
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# Prepare environment and variables
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set(PKG_CONFIG_USE_CMAKE_PREFIX_PATH TRUE)
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set(CMAKE_APPBUNDLE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/pc-foo")
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if(WIN32)
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set(PKG_CONFIG_EXECUTABLE "${CMAKE_CURRENT_SOURCE_DIR}\\dummy-pkg-config.bat")
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set(ENV{CMAKE_APPBUNDLE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}\\pc-bar;X:\\this\\directory\\should\\not\\exist\\in\\the\\filesystem")
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set(ENV{PKG_CONFIG_PATH} "C:\\baz")
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else()
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set(PKG_CONFIG_EXECUTABLE "${CMAKE_CURRENT_SOURCE_DIR}/dummy-pkg-config.sh")
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set(ENV{CMAKE_APPBUNDLE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/pc-bar:/this/directory/should/not/exist/in/the/filesystem")
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set(ENV{PKG_CONFIG_PATH} "/baz")
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endif()
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find_package(PkgConfig)
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if(NOT DEFINED CMAKE_SYSTEM_NAME
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OR (CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
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AND NOT CMAKE_CROSSCOMPILING))
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if(EXISTS "/etc/debian_version") # is this a debian system ?
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if(CMAKE_LIBRARY_ARCHITECTURE MATCHES "^(i386-linux-gnu|x86_64-linux-gnu)$")
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# Cannot create directories for all the existing architectures...
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/${CMAKE_LIBRARY_ARCHITECTURE}/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/${CMAKE_LIBRARY_ARCHITECTURE}/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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else()
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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endif()
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else()
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# not debian, check the FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS properties
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get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
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get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
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if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib32/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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elseif(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib64/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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else()
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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endif()
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endif()
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else()
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if(WIN32)
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set(expected_path "C:\\baz;${CMAKE_CURRENT_SOURCE_DIR}\\pc-foo\\lib\\pkgconfig;${CMAKE_CURRENT_SOURCE_DIR}\\pc-bar\\lib\\pkgconfig")
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else()
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set(expected_path "/baz:${CMAKE_CURRENT_SOURCE_DIR}/pc-foo/lib/pkgconfig:${CMAKE_CURRENT_SOURCE_DIR}/pc-bar/lib/pkgconfig")
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endif()
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endif()
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pkg_check_modules(FOO "${expected_path}")
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if(NOT FOO_FOUND)
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message(FATAL_ERROR "Expected PKG_CONFIG_PATH: \"${expected_path}\".")
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endif()
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