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238 lines
7.4 KiB
CMake
238 lines
7.4 KiB
CMake
#.rst:
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# FindOpenSceneGraph
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# ------------------
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#
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# Find OpenSceneGraph
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#
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# This module searches for the OpenSceneGraph core "osg" library as well
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# as OpenThreads, and whatever additional COMPONENTS (nodekits) that you
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# specify.
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#
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# ::
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#
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# See http://www.openscenegraph.org
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#
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#
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#
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# NOTE: To use this module effectively you must either require CMake >=
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# 2.6.3 with cmake_minimum_required(VERSION 2.6.3) or download and place
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# FindOpenThreads.cmake, Findosg_functions.cmake, Findosg.cmake, and
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# Find<etc>.cmake files into your CMAKE_MODULE_PATH.
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#
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# ==================================
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#
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# This module accepts the following variables (note mixed case)
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#
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# ::
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#
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# OpenSceneGraph_DEBUG - Enable debugging output
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#
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#
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#
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# ::
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#
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# OpenSceneGraph_MARK_AS_ADVANCED - Mark cache variables as advanced
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# automatically
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#
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#
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#
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# The following environment variables are also respected for finding the
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# OSG and it's various components. CMAKE_PREFIX_PATH can also be used
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# for this (see find_library() CMake documentation).
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#
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# ::
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#
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# <MODULE>_DIR (where MODULE is of the form "OSGVOLUME" and there is a FindosgVolume.cmake file)
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# OSG_DIR
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# OSGDIR
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# OSG_ROOT
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#
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#
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#
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# [CMake 2.8.10]: The CMake variable OSG_DIR can now be used as well to
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# influence detection, instead of needing to specify an environment
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# variable.
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#
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# This module defines the following output variables:
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#
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# ::
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#
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# OPENSCENEGRAPH_FOUND - Was the OSG and all of the specified components found?
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#
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#
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#
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# ::
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#
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# OPENSCENEGRAPH_VERSION - The version of the OSG which was found
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#
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#
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#
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# ::
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#
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# OPENSCENEGRAPH_INCLUDE_DIRS - Where to find the headers
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#
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#
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#
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# ::
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#
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# OPENSCENEGRAPH_LIBRARIES - The OSG libraries
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#
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#
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#
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# ================================== Example Usage:
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#
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# ::
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#
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# find_package(OpenSceneGraph 2.0.0 REQUIRED osgDB osgUtil)
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# # libOpenThreads & libosg automatically searched
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# include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})
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#
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#
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#
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# ::
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#
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# add_executable(foo foo.cc)
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# target_link_libraries(foo ${OPENSCENEGRAPH_LIBRARIES})
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#=============================================================================
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# Copyright 2009 Kitware, Inc.
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# Copyright 2009-2012 Philip Lowman <philip@yhbt.com>
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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#
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# Naming convention:
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# Local variables of the form _osg_foo
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# Input variables of the form OpenSceneGraph_FOO
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# Output variables of the form OPENSCENEGRAPH_FOO
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#
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include(${CMAKE_CURRENT_LIST_DIR}/Findosg_functions.cmake)
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set(_osg_modules_to_process)
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foreach(_osg_component ${OpenSceneGraph_FIND_COMPONENTS})
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list(APPEND _osg_modules_to_process ${_osg_component})
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endforeach()
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list(APPEND _osg_modules_to_process "osg" "OpenThreads")
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list(REMOVE_DUPLICATES _osg_modules_to_process)
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if(OpenSceneGraph_DEBUG)
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message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Components = ${_osg_modules_to_process}")
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endif()
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#
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# First we need to find and parse osg/Version
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#
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OSG_FIND_PATH(OSG osg/Version)
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if(OpenSceneGraph_MARK_AS_ADVANCED)
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OSG_MARK_AS_ADVANCED(OSG)
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endif()
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# Try to ascertain the version...
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if(OSG_INCLUDE_DIR)
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if(OpenSceneGraph_DEBUG)
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message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Detected OSG_INCLUDE_DIR = ${OSG_INCLUDE_DIR}")
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endif()
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set(_osg_Version_file "${OSG_INCLUDE_DIR}/osg/Version")
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if("${OSG_INCLUDE_DIR}" MATCHES "\\.framework$" AND NOT EXISTS "${_osg_Version_file}")
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set(_osg_Version_file "${OSG_INCLUDE_DIR}/Headers/Version")
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endif()
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if(EXISTS "${_osg_Version_file}")
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file(STRINGS "${_osg_Version_file}" _osg_Version_contents
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REGEX "#define (OSG_VERSION_[A-Z]+|OPENSCENEGRAPH_[A-Z]+_VERSION)[ \t]+[0-9]+")
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else()
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set(_osg_Version_contents "unknown")
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endif()
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string(REGEX MATCH ".*#define OSG_VERSION_MAJOR[ \t]+[0-9]+.*"
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_osg_old_defines "${_osg_Version_contents}")
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string(REGEX MATCH ".*#define OPENSCENEGRAPH_MAJOR_VERSION[ \t]+[0-9]+.*"
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_osg_new_defines "${_osg_Version_contents}")
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if(_osg_old_defines)
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string(REGEX REPLACE ".*#define OSG_VERSION_MAJOR[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_MAJOR ${_osg_Version_contents})
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string(REGEX REPLACE ".*#define OSG_VERSION_MINOR[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_MINOR ${_osg_Version_contents})
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string(REGEX REPLACE ".*#define OSG_VERSION_PATCH[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_PATCH ${_osg_Version_contents})
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elseif(_osg_new_defines)
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string(REGEX REPLACE ".*#define OPENSCENEGRAPH_MAJOR_VERSION[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_MAJOR ${_osg_Version_contents})
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string(REGEX REPLACE ".*#define OPENSCENEGRAPH_MINOR_VERSION[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_MINOR ${_osg_Version_contents})
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string(REGEX REPLACE ".*#define OPENSCENEGRAPH_PATCH_VERSION[ \t]+([0-9]+).*"
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"\\1" _osg_VERSION_PATCH ${_osg_Version_contents})
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else()
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message(WARNING "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Failed to parse version number, please report this as a bug")
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endif()
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unset(_osg_Version_contents)
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set(OPENSCENEGRAPH_VERSION "${_osg_VERSION_MAJOR}.${_osg_VERSION_MINOR}.${_osg_VERSION_PATCH}"
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CACHE INTERNAL "The version of OSG which was detected")
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if(OpenSceneGraph_DEBUG)
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message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Detected version ${OPENSCENEGRAPH_VERSION}")
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endif()
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endif()
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set(_osg_quiet)
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if(OpenSceneGraph_FIND_QUIETLY)
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set(_osg_quiet "QUIET")
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endif()
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#
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# Here we call find_package() on all of the components
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#
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foreach(_osg_module ${_osg_modules_to_process})
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if(OpenSceneGraph_DEBUG)
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message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Calling find_package(${_osg_module} ${_osg_required} ${_osg_quiet})")
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endif()
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find_package(${_osg_module} ${_osg_quiet})
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string(TOUPPER ${_osg_module} _osg_module_UC)
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list(APPEND OPENSCENEGRAPH_INCLUDE_DIR ${${_osg_module_UC}_INCLUDE_DIR})
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list(APPEND OPENSCENEGRAPH_LIBRARIES ${${_osg_module_UC}_LIBRARIES})
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if(OpenSceneGraph_MARK_AS_ADVANCED)
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OSG_MARK_AS_ADVANCED(${_osg_module})
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endif()
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endforeach()
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if(OPENSCENEGRAPH_INCLUDE_DIR)
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list(REMOVE_DUPLICATES OPENSCENEGRAPH_INCLUDE_DIR)
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endif()
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#
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# Check each module to see if it's found
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#
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set(_osg_component_founds)
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if(OpenSceneGraph_FIND_REQUIRED)
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foreach(_osg_module ${_osg_modules_to_process})
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string(TOUPPER ${_osg_module} _osg_module_UC)
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list(APPEND _osg_component_founds ${_osg_module_UC}_FOUND)
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endforeach()
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endif()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenSceneGraph
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REQUIRED_VARS OPENSCENEGRAPH_LIBRARIES OPENSCENEGRAPH_INCLUDE_DIR ${_osg_component_founds}
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VERSION_VAR OPENSCENEGRAPH_VERSION)
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unset(_osg_component_founds)
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set(OPENSCENEGRAPH_INCLUDE_DIRS ${OPENSCENEGRAPH_INCLUDE_DIR})
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