0d0a02b230
With this PR, a user can designate older versions of OpenGL as an external Spack package, and dependents can use that installation as long as they do not have version requirements. MacOS currently comes with OpenGL 2.1; there is currently no 'provides' directive in the OpenGL Spack package which specifies a gl version provided for versions earlier than OpenGL 3.3, so earlier versions of OpenGL are not considered to provide any version of gl. This PR records that any version of OpenGL provides 'gl' (which is sufficient for any package that does not require a specific version of gl).
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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import sys
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from spack import *
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class Opengl(Package):
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"""Placeholder for external OpenGL libraries from hardware vendors"""
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homepage = "https://www.opengl.org/"
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provides('gl')
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provides('gl@:4.5', when='@4.5:')
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provides('gl@:4.4', when='@4.4:')
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provides('gl@:4.3', when='@4.3:')
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provides('gl@:4.2', when='@4.2:')
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provides('gl@:4.1', when='@4.1:')
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provides('gl@:3.3', when='@3.3:')
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if sys.platform != 'darwin':
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provides('glx@1.4')
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# Override the fetcher method to throw a useful error message;
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# fixes GitHub issue (#7061) in which this package threw a
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# generic, uninformative error during the `fetch` step,
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@property
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def fetcher(self):
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msg = """This package is intended to be a placeholder for
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system-provided OpenGL libraries from hardware vendors. Please
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download and install OpenGL drivers/libraries for your graphics
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hardware separately, and then set that up as an external package.
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An example of a working packages.yaml:
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packages:
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opengl:
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paths:
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opengl@4.5.0: /opt/opengl
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buildable: False
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In that case, /opt/opengl/ should contain these two folders:
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include/GL/ (opengl headers, including "gl.h")
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lib (opengl libraries, including "libGL.so")
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On Apple Darwin (e.g., OS X, macOS) systems, this package is
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normally installed as part of the XCode Command Line Tools in
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/usr/X11R6, so a working packages.yaml would be
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packages:
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opengl:
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paths:
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opengl@4.1: /usr/X11R6
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buildable: False
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In that case, /usr/X11R6 should contain
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include/GL/ (OpenGL headers, including "gl.h")
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lib (OpenGL libraries, including "libGL.dylib")
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On OS X/macOS, note that the version of OpenGL provided
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depends on your hardware. Look at
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https://support.apple.com/en-us/HT202823 to see what version
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of OpenGL your Mac uses."""
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raise InstallError(msg)
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@property
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def libs(self):
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for dir in ['lib64', 'lib']:
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libs = find_libraries('libGL', join_path(self.prefix, dir),
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shared=True, recursive=False)
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if libs:
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return libs
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