107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
# Copyright 2013-2023 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 re
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import sys
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from spack.package import *
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class Opengl(BundlePackage):
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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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version("4.5")
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# This should really be when='platform=linux' but can't because of a
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# current bug in when and how ArchSpecs are constructed
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if sys.platform.startswith("linux"):
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provides("libglx")
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executables = ["^glxinfo$"]
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else: # windows and mac
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provides("gl@4.5")
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@classmethod
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def determine_version(cls, exe):
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if exe:
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output = Executable(exe)(output=str, error=str)
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match = re.search(r"OpenGL version string: (\S+)", output)
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return match.group(1) if match else None
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else:
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return None
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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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buildable: False
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externals:
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- spec: opengl@4.5.0
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prefix: /opt/opengl
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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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buildable: False
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externals:
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- spec: opengl@4.1
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prefix: /usr/X11R6
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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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@fetcher.setter # Since fetcher is read-write, must override both
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def fetcher(self):
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_ = self.fetcher
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@property
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def libs(self):
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return self.gl_libs
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@property
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def gl_headers(self):
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if "platform=darwin":
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header_name = "OpenGL/gl.h"
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else:
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header_name = "GL/gl.h"
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return find_headers(header_name, root=self.prefix, recursive=True)
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@property
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def gl_libs(self):
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spec = self.spec
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if "platform=windows" in spec:
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lib_name = "opengl32"
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elif "platform=darwin" in spec:
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lib_name = "libOpenGL"
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else: # linux and cray
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lib_name = "libGL"
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return find_libraries(lib_name, root=self.prefix, recursive=True)
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