74 lines
1.9 KiB
CMake
74 lines
1.9 KiB
CMake
#.rst:
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# CGAL_SetupCGAL_ImageIODependencies
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# ----------------------------------
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#
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# The module searchs for the dependencies of the `CGAL_ImageIO` library:
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# - the `Zlib` library (optional)
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#
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# by calling
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#
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# .. code-block:: cmake
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#
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# find_package(ZLIB)
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#
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# and defines the variable :variable:`CGAL_ImageIO_FOUND` and the function
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# :command:`CGAL_setup_CGAL_ImageIO_dependencies`.
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#
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if(CGAL_SetupCGAL_ImageIODependencies_included)
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return()
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endif()
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set(CGAL_SetupCGAL_ImageIODependencies_included TRUE)
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#.rst:
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# Used Modules
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# ^^^^^^^^^^^^
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# - :module:`FindZLIB`
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find_package( ZLIB )
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define_property(TARGET PROPERTY CGAL_TARGET_USES_ZLIB
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BRIEF_DOCS "Tells if the target uses ZLIB as a dependency"
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FULL_DOCS "Tells if the target uses ZLIB as a dependency")
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#.rst:
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# Result Variables
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# ^^^^^^^^^^^^^^^^
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#
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# .. variable:: CGAL_ImageIO_USE_ZLIB
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#
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# Set to `TRUE` if `CGAL_ImageIO` was compiled with `Zlib`.
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#
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# .. variable:: CGAL_ImageIO_FOUND
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#
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# Always set to `TRUE`.
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if(ZLIB_FOUND)
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set(CGAL_ImageIO_USE_ZLIB ON CACHE BOOL "CGAL_ImageIO uses ZLIB")
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endif(ZLIB_FOUND)
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set( CGAL_ImageIO_BASENAME CGAL_ImageIO)
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set(CGAL_ImageIO_FOUND TRUE)
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set_property(GLOBAL PROPERTY CGAL_ImageIO_FOUND TRUE)
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function(CGAL_setup_CGAL_ImageIO_dependencies target)
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if(ARGV1 STREQUAL INTERFACE)
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set(keyword INTERFACE)
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else()
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set(keyword PUBLIC)
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endif()
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target_link_libraries( CGAL_ImageIO ${keyword} CGAL::CGAL)
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if(ZLIB_FOUND)
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target_include_directories( CGAL_ImageIO SYSTEM ${keyword} ${ZLIB_INCLUDE_DIRS})
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target_link_libraries( CGAL_ImageIO ${keyword} ${ZLIB_LIBRARIES})
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target_compile_definitions( CGAL_ImageIO ${keyword} CGAL_USE_ZLIB=1)
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if(NOT ARGV1 STREQUAL INTERFACE)
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set_target_properties(CGAL_ImageIO PROPERTIES CGAL_TARGET_USES_ZLIB TRUE)
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endif()
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else()
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message( STATUS "NOTICE: libCGAL_ImageIO needs ZLib to read compressed files. That feature will not be activated.")
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endif()
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endfunction()
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