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https://github.com/pocoproject/poco.git
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10425a9556
This fixes problems when a project adds a directory to CMAKE_PREFIX_PATH, then calls find_package(Poco ...) and afterwards calls find_package() for another project located in one of the directories of the original CMAKE_PREFIX_PATH variable.
54 lines
1.8 KiB
CMake
54 lines
1.8 KiB
CMake
if (CMAKE_VERSION VERSION_LESS 2.8.9)
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message(FATAL_ERROR "Poco requires at least CMake version 2.8.9")
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endif()
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if (NOT Poco_FIND_COMPONENTS)
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set(Poco_NOT_FOUND_MESSAGE "The Poco package requires at least one component")
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set(Poco_FOUND False)
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return()
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endif()
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set(_Poco_FIND_PARTS_REQUIRED)
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if (Poco_FIND_REQUIRED)
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set(_Poco_FIND_PARTS_REQUIRED REQUIRED)
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endif()
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set(_Poco_FIND_PARTS_QUIET)
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if (Poco_FIND_QUIETLY)
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set(_Poco_FIND_PARTS_QUIET QUIET)
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endif()
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get_filename_component(_Poco_install_prefix "${CMAKE_CURRENT_LIST_DIR}" ABSOLUTE)
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set(_Poco_NOTFOUND_MESSAGE)
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# Let components find each other, but don't overwrite CMAKE_PREFIX_PATH
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set(_Poco_CMAKE_PREFIX_PATH_old ${CMAKE_PREFIX_PATH})
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set(CMAKE_PREFIX_PATH ${_Poco_install_prefix})
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foreach(module ${Poco_FIND_COMPONENTS})
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find_package(Poco${module}
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${_Poco_FIND_PARTS_QUIET}
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${_Poco_FIND_PARTS_REQUIRED}
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PATHS "${_Poco_install_prefix}" NO_DEFAULT_PATH
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)
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if (NOT Poco${module}_FOUND)
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if (Poco_FIND_REQUIRED_${module})
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set(_Poco_NOTFOUND_MESSAGE "${_Poco_NOTFOUND_MESSAGE}Failed to find Poco component \"${module}\" config file at \"${_Poco_install_prefix}/Poco${module}/Poco${module}Config.cmake\"\n")
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elseif(NOT Poco_FIND_QUIETLY)
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message(WARNING "Failed to find Poco component \"${module}\" config file at \"${_Poco_install_prefix}/Poco${module}/Poco${module}Config.cmake\"")
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endif()
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endif()
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# For backward compatibility set the LIBRARIES variable
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list(APPEND Poco_LIBRARIES "Poco::${module}")
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endforeach()
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# Restore the original CMAKE_PREFIX_PATH value
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set(CMAKE_PREFIX_PATH ${_Poco_CMAKE_PREFIX_PATH_old})
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if (_Poco_NOTFOUND_MESSAGE)
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set(Poco_NOT_FOUND_MESSAGE "${_Poco_NOTFOUND_MESSAGE}")
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set(Poco_FOUND False)
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endif()
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