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-rw-r--r--general-concepts/licenses/text.xml28
1 files changed, 28 insertions, 0 deletions
diff --git a/general-concepts/licenses/text.xml b/general-concepts/licenses/text.xml
index f1d5299..aa2ca74 100644
--- a/general-concepts/licenses/text.xml
+++ b/general-concepts/licenses/text.xml
@@ -87,6 +87,34 @@ to include license term violations.
</subsection>
<subsection>
+<title>GPL-x vs GPL-x+</title>
+<body>
+
+<p>
+FSF licenses (GPL, LGPL, AGPL, FDL) occur in two variants: the 'vN only'
+and 'vN or later' variants. In Gentoo, the licenses of the latter variants
+are denoted by appending
+a plus sign (+) to their respective license notations of the former variant,
+e.g. <c>GPL-2+</c> and <c>GPL-2</c>.
+</p>
+
+<p>
+Determining the correct variant usually requires looking for copyright
+notices in the code. For example, the following copyright notice
+indicates <c>GPL-2+</c> license:
+</p>
+
+<pre>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+</pre>
+
+</body>
+</subsection>
+
+<subsection>
<title>Adding New Licenses</title>
<body>