xmake-repo/packages/o/opengl/xmake.lua

package("opengl")

    set_homepage("https://opengl.org/")
    set_description("OpenGL - The Industry Standard for High Performance Graphics")

    on_fetch(function (package, opt)
        -- we always get it from compiler toolchain
        if package:is_plat("macosx") then
            return {frameworks = "OpenGL", defines = "GL_SILENCE_DEPRECATION"}
        elseif package:is_plat("windows", "mingw") then
            return {links = "opengl32"}
        end
        if opt.system then
            if package:is_plat("linux") and package.find_package then
                return package:find_package("opengl", opt) or package:find_package("libgl", opt)
            end
        end
    end)