Re: SPDX ID for GPL-2.0+ with addendum ?

Wolfgang Denk


I wrote:

I ran into a number of source files which include the standard
GPL-2.0+ license header, but augmented with the following addendum:

For the avoidance of doubt the "preferred form" of this code is one which
is in an open non patent encumbered format. Where cryptographic key signing
forms part of the process of creating an executable the information
including keys needed to generate an equivalently functional executable
are deemed to be part of the source code.

I think we will need a new License tag for this, right?

Do you have any suggestion for this?

I found more "augmented" versions of GPL-2.0+ ; some libgcc files add
this clause:

In addition to the permissions in the GNU General Public License, the
Free Software Foundation gives you unlimited permission to link the
compiled version of this file into combinations with other programs,
and to distribute those combinations without any restriction coming
from the use of this file. (The General Public License restrictions
do apply in other respects; for example, they cover modification of
the file, and distribution when not linked into a combined

Others include this above addendum, and additionally this one:

As a special exception, if you link this library with files
compiled with GCC to produce an executable, this does not cause
the resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why
the executable file might be covered by the GNU General Public License.

Is it correct to assume that we need special license tags for these
two cases, too?

Best regards,

Wolfgang Denk

DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
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