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27 lines
1.1 KiB
ReStructuredText
27 lines
1.1 KiB
ReStructuredText
CMP0072
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-------
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:module:`FindOpenGL` prefers GLVND by default when available.
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The :module:`FindOpenGL` module provides an ``OpenGL::GL`` target and an
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``OPENGL_LIBRARIES`` variable for projects to use for legacy GL interfaces.
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When both a legacy GL library (e.g. ``libGL.so``) and GLVND libraries
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for OpenGL and GLX (e.g. ``libOpenGL.so`` and ``libGLX.so``) are available,
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the module must choose between them. It documents an ``OpenGL_GL_PREFERENCE``
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variable that can be used to specify an explicit preference. When no such
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preference is set, the module must choose a default preference.
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CMake 3.11 and above prefer to choose GLVND libraries. This policy provides
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compatibility with projects that expect the legacy GL library to be used.
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The ``OLD`` behavior for this policy is to set ``OpenGL_GL_PREFERENCE`` to
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``LEGACY``. The ``NEW`` behavior for this policy is to set
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``OpenGL_GL_PREFERENCE`` to ``GLVND``.
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This policy was introduced in CMake version 3.11. CMake version
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|release| warns when the policy is not set and uses ``OLD`` behavior.
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Use the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW``
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explicitly.
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.. include:: DEPRECATED.txt
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