# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.package import *


class Libepoxy(AutotoolsPackage):
    """Epoxy is a library for handling OpenGL function pointer management for
    you."""

    homepage = "https://github.com/anholt/libepoxy"
    url = "https://github.com/anholt/libepoxy/releases/download/1.4.3/libepoxy-1.4.3.tar.xz"
    list_url = "https://github.com/anholt/libepoxy/releases"

    license("MIT")

    version("1.4.3", sha256="0b808a06c9685a62fca34b680abb8bc7fb2fda074478e329b063c1f872b826f6")

    depends_on("pkgconfig", type="build")
    depends_on("gl")
    depends_on("libx11", when="+glx")

    variant("glx", default=True, description="enable GLX support")

    def configure_args(self):
        # Disable egl, otherwise configure fails with:
        # error: Package requirements (egl) were not met
        # Package 'egl', required by 'virtual:world', not found
        args = ["--enable-egl=no"]

        # --enable-glx defaults to auto and was failing on PPC64LE systems
        # because libx11 was missing from the dependences. This explicitly
        # enables/disables glx support.
        if "+glx" in self.spec:
            args.append("--enable-glx=yes")
        else:
            args.append("--enable-glx=no")

        return args