From 71de612e10e3669b9dadba521664bd91d233a521 Mon Sep 17 00:00:00 2001
From: Kyle Meyer <kyle@kyleam.com>
Date: Sun, 22 May 2022 18:28:04 -0400
Subject: licenses: Add Expat No Attribution license.
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* guix/licenses.scm (expat-0): New variable.
* guix/import/utils.scm (spdx-string->license): Add MIT-0.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
---
 guix/import/utils.scm |  2 ++
 guix/licenses.scm     | 10 +++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/guix/import/utils.scm b/guix/import/utils.scm
index 646921c73b..26eebfece5 100644
--- a/guix/import/utils.scm
+++ b/guix/import/utils.scm
@@ -11,6 +11,7 @@
 ;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2022 Alice Brenon <alice.brenon@ens-lyon.fr>
+;;; Copyright © 2022 Kyle Meyer <kyle@kyleam.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -176,6 +177,7 @@ of the string VERSION is replaced by the symbol 'version."
     ("EPL-2.0"                     'license:epl2.0)
     ("EUPL-1.2"                    'license:eupl1.2)
     ("MIT"                         'license:expat)
+    ("MIT-0"                       'license:expat-0)
     ("FTL"                         'license:freetype)
     ("FreeBSD-DOC"                 'license:freebsd-doc)
     ("Freetype"                    'license:freetype)
diff --git a/guix/licenses.scm b/guix/licenses.scm
index 82ca44f42e..3b820ae07e 100644
--- a/guix/licenses.scm
+++ b/guix/licenses.scm
@@ -19,6 +19,7 @@
 ;;; Copyright © 2021 Felix Gruber <felgru@posteo.net>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Noisytoot <noisytoot@disroot.org>
+;;; Copyright © 2021 Kyle Meyer <kyle@kyleam.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -57,7 +58,7 @@
             epl1.0
             epl2.0
             eupl1.2
-            expat
+            expat expat-0
             freetype
             freebsd-doc
             giftware
@@ -315,6 +316,13 @@ at URI, which may be a file:// URI pointing the package's tree."
            "http://directory.fsf.org/wiki/License:Expat"
            "https://www.gnu.org/licenses/license-list.html#Expat"))
 
+(define expat-0
+  (license "Expat No Attribution"
+           ;; Note: There is a later formulation of the same license at
+           ;; <https://github.com/aws/mit-0>.
+           "https://romanrm.net/mit-zero"
+           "Expat license with the attribution paragraph removed."))
+
 (define freetype
   (license "Freetype"
            "http://directory.fsf.org/wiki/License:Freetype"
-- 
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