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b01184022b
This is to avoid getting an (older) copy of FPHSA.cmake which is e.g. installed with KDE 4.5.0 and 4.5.1. Alex
247 lines
8.9 KiB
CMake
247 lines
8.9 KiB
CMake
# - Find OpenSceneGraph
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# This module searches for the OpenSceneGraph core "osg" library as well as
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# OpenThreads, and whatever additional COMPONENTS (nodekits) that you specify.
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# See http://www.openscenegraph.org
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#
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# NOTE: To use this module effectively you must either require CMake >= 2.6.3
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# with cmake_minimum_required(VERSION 2.6.3) or download and place
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# FindOpenThreads.cmake, Findosg_functions.cmake, Findosg.cmake,
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# and 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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# OpenSceneGraph_DEBUG - Enable debugging output
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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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# The following environment variables are also respected for finding the OSG
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# and it's various components. CMAKE_PREFIX_PATH can also be used for this
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# (see find_library() CMake documentation).
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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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# This module defines the following output variables:
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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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# OPENSCENEGRAPH_VERSION - The version of the OSG which was found
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#
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# OPENSCENEGRAPH_INCLUDE_DIRS - Where to find the headers
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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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# Example Usage:
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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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# add_executable(foo foo.cc)
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# target_link_libraries(foo ${OPENSCENEGRAPH_LIBRARIES})
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#
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#=============================================================================
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# Copyright 2009 Kitware, Inc.
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# Copyright 2009 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(Findosg_functions)
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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 ${_osg_component})
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endforeach()
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list(APPEND _osg_modules_to_process "osg" "OpenThreads")
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list(REMOVE_DUPLICATES _osg_modules_to_process)
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if(OpenSceneGraph_DEBUG)
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message("[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
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"Components = ${_osg_modules_to_process}")
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endif()
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#
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# First we need to find and parse osg/Version
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#
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OSG_FIND_PATH(OSG osg/Version)
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if(OpenSceneGraph_MARK_AS_ADVANCED)
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OSG_MARK_AS_ADVANCED(OSG)
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endif()
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# Try to ascertain the version...
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if(OSG_INCLUDE_DIR)
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if(OpenSceneGraph_DEBUG)
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message("[ FindOpenSceneGraph.cmake:${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 "${_osg_Version_file}")
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file(READ "${_osg_Version_file}" _osg_Version_contents)
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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 ${_osg_Version_contents})
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else()
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message("[ FindOpenSceneGraph.cmake:${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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set(OPENSCENEGRAPH_VERSION "${_osg_VERSION_MAJOR}.${_osg_VERSION_MINOR}.${_osg_VERSION_PATCH}"
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CACHE INTERNAL "The version of OSG which was detected")
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if(OpenSceneGraph_DEBUG)
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message("[ FindOpenSceneGraph.cmake:${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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#
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# Version checking
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#
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if(OpenSceneGraph_FIND_VERSION AND OPENSCENEGRAPH_VERSION)
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if(OpenSceneGraph_FIND_VERSION_EXACT)
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if(NOT OPENSCENEGRAPH_VERSION VERSION_EQUAL ${OpenSceneGraph_FIND_VERSION})
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set(_osg_version_not_exact TRUE)
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endif()
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else()
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# version is too low
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if(NOT OPENSCENEGRAPH_VERSION VERSION_EQUAL ${OpenSceneGraph_FIND_VERSION} AND
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NOT OPENSCENEGRAPH_VERSION VERSION_GREATER ${OpenSceneGraph_FIND_VERSION})
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set(_osg_version_not_high_enough TRUE)
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endif()
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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 ${_osg_modules_to_process})
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if(OpenSceneGraph_DEBUG)
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message("[ FindOpenSceneGraph.cmake:${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(${_osg_module})
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endif()
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endforeach()
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if(OPENSCENEGRAPH_INCLUDE_DIR)
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list(REMOVE_DUPLICATES OPENSCENEGRAPH_INCLUDE_DIR)
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endif()
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#
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# Inform the users with an error message based on
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# what version they have vs. what version was
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# required.
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#
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if(OpenSceneGraph_FIND_REQUIRED)
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set(_osg_version_output_type FATAL_ERROR)
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else()
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set(_osg_version_output_type STATUS)
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endif()
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if(_osg_version_not_high_enough)
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set(_osg_EPIC_FAIL TRUE)
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if(NOT OpenSceneGraph_FIND_QUIETLY)
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message(${_osg_version_output_type}
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"ERROR: Version ${OpenSceneGraph_FIND_VERSION} or higher of the OSG "
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"is required. Version ${OPENSCENEGRAPH_VERSION} was found.")
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endif()
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elseif(_osg_version_not_exact)
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set(_osg_EPIC_FAIL TRUE)
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if(NOT OpenSceneGraph_FIND_QUIETLY)
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message(${_osg_version_output_type}
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"ERROR: Version ${OpenSceneGraph_FIND_VERSION} of the OSG is required "
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"(exactly), version ${OPENSCENEGRAPH_VERSION} was found.")
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endif()
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else()
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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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if(OpenSceneGraph_FIND_REQUIRED)
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set(_osg_missing_message)
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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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if(NOT ${_osg_module_UC}_FOUND)
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set(_osg_missing_nodekit_fail true)
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set(_osg_missing_message "${_osg_missing_message} ${_osg_module}")
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endif()
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endforeach()
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if(_osg_missing_nodekit_fail)
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message(FATAL_ERROR "ERROR: Missing the following osg "
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"libraries: ${_osg_missing_message}.\n"
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"Consider using CMAKE_PREFIX_PATH or the OSG_DIR "
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"environment variable. See the "
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"${CMAKE_CURRENT_LIST_FILE} for more details.")
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endif()
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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 DEFAULT_MSG OPENSCENEGRAPH_LIBRARIES OPENSCENEGRAPH_INCLUDE_DIR)
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endif()
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if(_osg_EPIC_FAIL)
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# Zero out everything, we didn't meet version requirements
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set(OPENSCENEGRAPH_FOUND FALSE)
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set(OPENSCENEGRAPH_LIBRARIES)
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set(OPENSCENEGRAPH_INCLUDE_DIR)
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endif()
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set(OPENSCENEGRAPH_INCLUDE_DIRS ${OPENSCENEGRAPH_INCLUDE_DIR})
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