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7-Zip Rule

A copy of the LGPL library may be relicensed irreversibly under the GNU GPL

Catalog row in Vendor License Rules · Cited

Kind
Use rights
Statement
GNU LGPL 2.1 §3 (February 1999): the ordinary GNU GPL (version 2 or a later version) may be applied to a given copy of the Library instead of the LGPL by altering its notices; the change is irreversible for that copy and all derived copies. The 7-Zip FAQ likewise allows modified 7-Zip code to be licensed under the LGPL or GPL.
Applies when
Copying 7-Zip code into a GPL-licensed program.
Applies to
Copies of 7-Zip LGPL code incorporated into a program that is not a library.
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