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diff --git a/var/spack/repos/builtin/packages/optional-lite/package.py b/var/spack/repos/builtin/packages/optional-lite/package.py
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+++ b/var/spack/repos/builtin/packages/optional-lite/package.py
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+# Copyright 2013-2018 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 import *
+from shutil import copytree
+
+
+class OptionalLite(Package):
+ """
+ A single-file header-only version of a C++17-like optional, a nullable
+ object for C++98, C++11 and later.
+ """
+
+ homepage = "https://github.com/martinmoene/optional-lite"
+ url = "https://github.com/martinmoene/optional-lite/archive/v3.0.0.tar.gz"
+
+ version('3.0.0', sha256='36ae58512c478610647978811f0f4dbe105880372bd7ed39417314d50a27254e')
+ version('2.3.0', sha256='8fe46216147234b172c6a5b182726834afc44dfdca1e976a264d6f96eb183916')
+ version('2.2.0', sha256='9ce1bb021de42f804f8d17ed30b79fc98296122bec8db60492104978cd282fa2')
+ version('2.0.0', sha256='e8d803cbc7be241df41a9ab267b525b7941df09747cd5a7deb55f863bd8a4e8d')
+ version('1.0.3', sha256='7a2fb0fe20d61d091f6730237add9bab58bc0df1288cb96f3e8a61b859539067')
+
+ def install(self, spec, prefix):
+ copytree('include', prefix.include)