2023-11-01 06:11:15 +08:00
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindDCMTK
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---------
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2023-11-01 06:20:22 +08:00
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Find DICOM ToolKit (DCMTK) libraries and applications
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2023-11-01 06:11:15 +08:00
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The module defines the following variables::
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DCMTK_INCLUDE_DIRS - Directories to include to use DCMTK
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DCMTK_LIBRARIES - Files to link against to use DCMTK
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DCMTK_FOUND - If false, don't try to use DCMTK
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DCMTK_DIR - (optional) Source directory for DCMTK
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Compatibility
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^^^^^^^^^^^^^
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This module is able to find a version of DCMTK that does or does not export
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a *DCMTKConfig.cmake* file. It applies a two step process:
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* Step 1: Attempt to find DCMTK version providing a *DCMTKConfig.cmake* file.
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* Step 2: If step 1 failed, rely on *FindDCMTK.cmake* to set `DCMTK_*` variables details below.
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`Recent DCMTK
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<http://git.dcmtk.org/web?p=dcmtk.git;a=commit;h=662ae187c493c6b9a73dd5e3875372cebd0c11fe>`_
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provides a *DCMTKConfig.cmake* :manual:`package configuration file
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<cmake-packages(7)>`. To exclusively use the package configuration file
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(recommended when possible), pass the `NO_MODULE` option to
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:command:`find_package`. For example, `find_package(DCMTK NO_MODULE)`.
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This requires official DCMTK snapshot *3.6.1_20140617* or newer.
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Until all clients update to the more recent DCMTK, build systems will need
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to support different versions of DCMTK.
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On any given system, the following combinations of DCMTK versions could be
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considered:
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+--------+---------------------+-----------------------+-------------------+
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| | SYSTEM DCMTK | LOCAL DCMTK | Supported ? |
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+--------+---------------------+-----------------------+-------------------+
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| Case A | NA | [ ] DCMTKConfig | YES |
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+--------+---------------------+-----------------------+-------------------+
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| Case B | NA | [X] DCMTKConfig | YES |
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+--------+---------------------+-----------------------+-------------------+
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| Case C | [ ] DCMTKConfig | NA | YES |
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+--------+---------------------+-----------------------+-------------------+
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| Case D | [X] DCMTKConfig | NA | YES |
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+--------+---------------------+-----------------------+-------------------+
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| Case E | [ ] DCMTKConfig | [ ] DCMTKConfig | YES (*) |
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+--------+---------------------+-----------------------+-------------------+
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| Case F | [X] DCMTKConfig | [ ] DCMTKConfig | NO |
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+--------+---------------------+-----------------------+-------------------+
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| Case G | [ ] DCMTKConfig | [X] DCMTKConfig | YES |
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+--------+---------------------+-----------------------+-------------------+
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| Case H | [X] DCMTKConfig | [X] DCMTKConfig | YES |
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+--------+---------------------+-----------------------+-------------------+
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(*) See Troubleshooting section.
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Legend:
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NA ...............: Means that no System or Local DCMTK is available
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[ ] DCMTKConfig ..: Means that the version of DCMTK does NOT export a DCMTKConfig.cmake file.
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[X] DCMTKConfig ..: Means that the version of DCMTK exports a DCMTKConfig.cmake file.
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Troubleshooting
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^^^^^^^^^^^^^^^
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What to do if my project finds a different version of DCMTK?
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Remove DCMTK entry from the CMake cache per :command:`find_package`
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documentation.
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#]=======================================================================]
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#
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# Written for VXL by Amitha Perera.
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# Upgraded for GDCM by Mathieu Malaterre.
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# Modified for EasyViz by Thomas Sondergaard.
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#
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set(_dcmtk_dir_description "The directory of DCMTK build or install tree.")
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# Ensure that DCMTK_DIR is set to a reasonable default value
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# so that DCMTK libraries can be found on a standard Unix distribution.
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# It also overwrite the value of DCMTK_DIR after this one has been
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# set by a successful discovery of DCMTK by the unpatched FindDCMTK.cmake module
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# distributed with CMake (as of 0167cea)
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if(NOT DCMTK_DIR OR DCMTK_DIR STREQUAL "/usr/include/dcmtk")
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set(DCMTK_DIR "/usr" CACHE PATH ${_dcmtk_dir_description} FORCE)
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endif()
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set(_SAVED_DCMTK_DIR ${DCMTK_DIR})
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#
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# Step1: Attempt to find a version of DCMTK providing a DCMTKConfig.cmake file.
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#
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if(NOT DCMTK_FIND_QUIETLY)
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message(STATUS "Trying to find DCMTK expecting DCMTKConfig.cmake")
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endif()
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find_package(DCMTK QUIET NO_MODULE)
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if(DCMTK_FOUND
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AND NOT "x" STREQUAL "x${DCMTK_LIBRARIES}"
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AND NOT "x" STREQUAL "x${DCMTK_INCLUDE_DIRS}")
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if(NOT DCMTK_FIND_QUIETLY)
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message(STATUS "Trying to find DCMTK expecting DCMTKConfig.cmake - ok")
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endif()
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return()
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else()
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if(NOT DCMTK_FIND_QUIETLY)
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message(STATUS "Trying to find DCMTK expecting DCMTKConfig.cmake - failed")
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endif()
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endif()
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if(NOT DCMTK_FIND_QUIETLY)
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message(STATUS "Trying to find DCMTK relying on FindDCMTK.cmake")
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endif()
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# Restore the value reset by the previous call to 'find_package(DCMTK QUIET NO_MODULE)'
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set(DCMTK_DIR ${_SAVED_DCMTK_DIR} CACHE PATH ${_dcmtk_dir_description} FORCE)
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#
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# Step2: Attempt to find a version of DCMTK that does NOT provide a DCMTKConfig.cmake file.
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#
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# prefer DCMTK_DIR over default system paths like /usr/lib
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if(DCMTK_DIR)
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set(CMAKE_PREFIX_PATH ${DCMTK_DIR}/lib ${CMAKE_PREFIX_PATH}) # this is given to FIND_LIBRARY or FIND_PATH
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endif()
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# Find all libraries, store debug and release separately
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foreach(lib
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dcmpstat
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dcmsr
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dcmsign
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dcmtls
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dcmqrdb
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dcmnet
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dcmjpeg
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dcmimage
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dcmimgle
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dcmdata
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oflog
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ofstd
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ijg12
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ijg16
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ijg8
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)
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# Find Release libraries
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find_library(DCMTK_${lib}_LIBRARY_RELEASE
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${lib}
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PATHS
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${DCMTK_DIR}/${lib}/libsrc
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${DCMTK_DIR}/${lib}/libsrc/Release
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${DCMTK_DIR}/${lib}/Release
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${DCMTK_DIR}/lib
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${DCMTK_DIR}/lib/Release
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${DCMTK_DIR}/dcmjpeg/lib${lib}/Release
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NO_DEFAULT_PATH
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)
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# Find Debug libraries
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find_library(DCMTK_${lib}_LIBRARY_DEBUG
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${lib}${DCMTK_CMAKE_DEBUG_POSTFIX}
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PATHS
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${DCMTK_DIR}/${lib}/libsrc
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${DCMTK_DIR}/${lib}/libsrc/Debug
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${DCMTK_DIR}/${lib}/Debug
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${DCMTK_DIR}/lib
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${DCMTK_DIR}/lib/Debug
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${DCMTK_DIR}/dcmjpeg/lib${lib}/Debug
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NO_DEFAULT_PATH
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)
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mark_as_advanced(DCMTK_${lib}_LIBRARY_RELEASE)
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mark_as_advanced(DCMTK_${lib}_LIBRARY_DEBUG)
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# Add libraries to variable according to build type
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if(DCMTK_${lib}_LIBRARY_RELEASE)
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list(APPEND DCMTK_LIBRARIES optimized ${DCMTK_${lib}_LIBRARY_RELEASE})
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endif()
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if(DCMTK_${lib}_LIBRARY_DEBUG)
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list(APPEND DCMTK_LIBRARIES debug ${DCMTK_${lib}_LIBRARY_DEBUG})
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endif()
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endforeach()
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set(CMAKE_THREAD_LIBS_INIT)
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if(DCMTK_oflog_LIBRARY_RELEASE OR DCMTK_oflog_LIBRARY_DEBUG)
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# Hack - Not having a DCMTKConfig.cmake file to read the settings from, we will attempt to
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# find the library in all cases.
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# Ideally, pthread library should be discovered only if DCMTK_WITH_THREADS is enabled.
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find_package(Threads)
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endif()
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if(CMAKE_THREAD_LIBS_INIT)
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list(APPEND DCMTK_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
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endif()
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#
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# SPECIFIC CASE FOR DCMTK BUILD DIR as DCMTK_DIR
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# (as opposed to a DCMTK install dir)
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# Have to find the source directory.
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if(EXISTS ${DCMTK_DIR}/CMakeCache.txt)
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load_cache(${DCMTK_DIR} READ_WITH_PREFIX "EXT"
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DCMTK_SOURCE_DIR)
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if(NOT EXISTS ${EXTDCMTK_SOURCE_DIR})
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message(FATAL_ERROR
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"DCMTK build directory references
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nonexistent DCMTK source directory ${EXTDCMTK_SOURCE_DIR}")
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endif()
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endif()
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set(DCMTK_config_TEST_HEADER osconfig.h)
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set(DCMTK_dcmdata_TEST_HEADER dctypes.h)
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set(DCMTK_dcmimage_TEST_HEADER dicoimg.h)
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set(DCMTK_dcmimgle_TEST_HEADER dcmimage.h)
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set(DCMTK_dcmjpeg_TEST_HEADER djdecode.h)
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set(DCMTK_dcmnet_TEST_HEADER assoc.h)
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set(DCMTK_dcmpstat_TEST_HEADER dcmpstat.h)
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set(DCMTK_dcmqrdb_TEST_HEADER dcmqrdba.h)
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set(DCMTK_dcmsign_TEST_HEADER sicert.h)
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set(DCMTK_dcmsr_TEST_HEADER dsrtree.h)
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set(DCMTK_dcmtls_TEST_HEADER tlslayer.h)
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set(DCMTK_ofstd_TEST_HEADER ofstdinc.h)
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set(DCMTK_oflog_TEST_HEADER oflog.h)
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set(DCMTK_dcmjpls_TEST_HEADER djlsutil.h)
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set(DCMTK_INCLUDE_DIR_NAMES)
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foreach(dir
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config
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dcmdata
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dcmimage
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dcmimgle
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dcmjpeg
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dcmjpls
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dcmnet
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dcmpstat
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dcmqrdb
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dcmsign
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dcmsr
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dcmtls
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ofstd
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oflog)
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if(EXTDCMTK_SOURCE_DIR)
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set(SOURCE_DIR_PATH
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${EXTDCMTK_SOURCE_DIR}/${dir}/include/dcmtk/${dir})
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endif()
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find_path(DCMTK_${dir}_INCLUDE_DIR
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${DCMTK_${dir}_TEST_HEADER}
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PATHS
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${DCMTK_DIR}/${dir}/include
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${DCMTK_DIR}/${dir}
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${DCMTK_DIR}/include/dcmtk/${dir}
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${DCMTK_DIR}/${dir}/include/dcmtk/${dir}
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${DCMTK_DIR}/include/${dir}
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${SOURCE_DIR_PATH}
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)
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mark_as_advanced(DCMTK_${dir}_INCLUDE_DIR)
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list(APPEND DCMTK_INCLUDE_DIR_NAMES DCMTK_${dir}_INCLUDE_DIR)
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if(DCMTK_${dir}_INCLUDE_DIR)
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# add the 'include' path so eg
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#include "dcmtk/dcmimgle/dcmimage.h"
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# works
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get_filename_component(_include ${DCMTK_${dir}_INCLUDE_DIR} PATH)
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get_filename_component(_include ${_include} PATH)
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list(APPEND
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DCMTK_INCLUDE_DIRS
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${DCMTK_${dir}_INCLUDE_DIR}
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${_include})
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endif()
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endforeach()
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list(APPEND DCMTK_INCLUDE_DIRS ${DCMTK_DIR}/include)
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if(WIN32)
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list(APPEND DCMTK_LIBRARIES netapi32 wsock32)
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endif()
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if(DCMTK_ofstd_INCLUDE_DIR)
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get_filename_component(DCMTK_dcmtk_INCLUDE_DIR
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${DCMTK_ofstd_INCLUDE_DIR}
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PATH
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CACHE)
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list(APPEND DCMTK_INCLUDE_DIRS ${DCMTK_dcmtk_INCLUDE_DIR})
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mark_as_advanced(DCMTK_dcmtk_INCLUDE_DIR)
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endif()
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# Compatibility: This variable is deprecated
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set(DCMTK_INCLUDE_DIR ${DCMTK_INCLUDE_DIRS})
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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find_package_handle_standard_args(DCMTK
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REQUIRED_VARS ${DCMTK_INCLUDE_DIR_NAMES} DCMTK_LIBRARIES
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FAIL_MESSAGE "Please set DCMTK_DIR and re-run configure")
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# Workaround bug in packaging of DCMTK 3.6.0 on Debian.
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# See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637687
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if(DCMTK_FOUND AND UNIX AND NOT APPLE)
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include(${CMAKE_CURRENT_LIST_DIR}/CheckIncludeFiles.cmake)
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set(CMAKE_REQUIRED_FLAGS )
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set(CMAKE_REQUIRED_DEFINITIONS )
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set(CMAKE_REQUIRED_INCLUDES ${DCMTK_INCLUDE_DIRS})
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set(CMAKE_REQUIRED_LIBRARIES ${DCMTK_LIBRARIES})
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set(CMAKE_REQUIRED_QUIET ${DCMTK_FIND_QUIETLY})
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check_include_files("dcmtk/config/osconfig.h;dcmtk/ofstd/ofstream.h" DCMTK_HAVE_CONFIG_H_OPTIONAL LANGUAGE CXX)
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if(NOT DCMTK_HAVE_CONFIG_H_OPTIONAL)
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set(DCMTK_DEFINITIONS "HAVE_CONFIG_H")
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endif()
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endif()
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