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3d97b95400
- Modules documentation updated and synced. - Internal comments about headers moved to the modules introduction section. - Added examples sections. - Used the `<PackageName>_FOUND` variables (CMake 3.3). The uppercased `<PACKAGENAME>_FOUND` are also set to the same value. - Mention of CMake 2.6.3 removed as these version notes are now being cleaned in the CMake 4 documentation (CMake docs are at this point considering the 2.8.12.2 as the initial state upon which new and changed items are documented through versions). - Added notes that these modules are not intended anymore to be used directly except for advanced case scenarios. The FindOpenSceneGraph module should be used. - Fixed osgQt description in FindOpenSceneGraph and synced it a bit.
116 lines
3.3 KiB
CMake
116 lines
3.3 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file LICENSE.rst or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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Findosg
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-------
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Finds the core OpenSceneGraph osg library (``libosg``).
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.. note::
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In most cases, it's recommended to use the :module:`FindOpenSceneGraph` module
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instead, which automatically finds the osg core library along with its
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required dependencies like OpenThreads:
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.. code-block:: cmake
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find_package(OpenSceneGraph)
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This module is used internally by :module:`FindOpenSceneGraph` to find the osg
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library. It is not intended to be included directly during typical use of the
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:command:`find_package` command. However, it is available as a standalone
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module for advanced use cases where finer control over detection is needed, such
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as explicitly finding osg library or bypassing automatic component detection:
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.. code-block:: cmake
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find_package(osg)
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OpenSceneGraph core library headers are intended to be included in C++ project
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source code as:
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.. code-block:: c++
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:caption: ``example.cxx``
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#include <osg/PositionAttitudeTransform>
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When working with the OpenSceneGraph toolkit, other libraries such as OpenGL may
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also be required.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module defines the following variables:
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``osg_FOUND``
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Boolean indicating whether osg library is found. For backward
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compatibility, the ``OSG_FOUND`` variable is also set to the same value.
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``OSG_LIBRARIES``
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The libraries needed to link against to use osg library.
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``OSG_LIBRARY``
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A result variable that is set to the same value as the ``OSG_LIBRARIES``
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variable.
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Cache Variables
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^^^^^^^^^^^^^^^
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The following cache variables may also be set:
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``OSG_INCLUDE_DIR``
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The include directory containing headers needed to use osg library.
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``OSG_LIBRARY_DEBUG``
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The path to the osg debug library.
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Hints
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^^^^^
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This module accepts the following variables:
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``OSGDIR``
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Environment variable that can be set to help locate the OpenSceneGraph
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toolkit, including its osg library, when installed in a custom
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location. It should point to the OpenSceneGraph installation prefix used when
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it was configured, built, and installed: ``./configure --prefix=$OSGDIR``.
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Examples
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^^^^^^^^
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Finding the osg library explicitly with this module and creating an interface
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:ref:`imported target <Imported Targets>` that encapsulates its usage
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requirements for linking it to a project target:
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.. code-block:: cmake
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find_package(osg)
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if(osg_FOUND AND NOT TARGET osg::osg)
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add_library(osg::osg INTERFACE IMPORTED)
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set_target_properties(
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osg::osg
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PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${OSG_INCLUDE_DIR}"
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INTERFACE_LINK_LIBRARIES "${OSG_LIBRARIES}"
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)
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endif()
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target_link_libraries(example PRIVATE osg::osg)
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See Also
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^^^^^^^^
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* The :module:`FindOpenSceneGraph` module to find OpenSceneGraph toolkit.
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#]=======================================================================]
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# Created by Eric Wing.
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include(${CMAKE_CURRENT_LIST_DIR}/Findosg_functions.cmake)
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OSG_FIND_PATH (OSG osg/PositionAttitudeTransform)
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OSG_FIND_LIBRARY(OSG osg)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(osg DEFAULT_MSG OSG_LIBRARY OSG_INCLUDE_DIR)
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