2021-03-23 23:33:32 +00:00
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Plan 9 from Bell Labs is provided under the terms of the MIT license,
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reproduced in the file /lib/legal/mit.
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2017-03-09 12:01:20 +00:00
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2021-03-23 23:33:32 +00:00
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Any additions or changes (as recorded in Mercurial history) made by 9front
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are also provided under the same MIT License, unless otherwise indicated.
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2017-03-09 12:01:20 +00:00
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The following exceptions apply:
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2011-08-27 13:43:49 +00:00
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1. No right is granted to create derivative works of or
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to redistribute (other than with the Plan 9 Operating System)
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the screen imprinter fonts identified in subdirectory
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/lib/font/bit/lucida and printer fonts (Lucida Sans Unicode, Lucida
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Sans Italic, Lucida Sans Demibold, Lucida Typewriter, Lucida Sans
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Typewriter83), identified in subdirectory /sys/lib/postscript/font.
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These directories contain material copyrights by B&H Inc. and Y&Y Inc.
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2. The printer fonts identified in subdirectory /sys/lib/ghostscript/font
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2017-03-09 12:01:20 +00:00
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are subject to the GNU GPL, version 2, reproduced in the file /lib/legal/gpl.
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2011-08-27 13:43:49 +00:00
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3. The ghostscript program in the subdirectory /sys/src/cmd/gs is
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covered by the Aladdin Free Public License, reproduced in the file
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/lib/legal/afpl.
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2017-03-09 12:01:20 +00:00
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4. The Python programming language in the subdirectories /sys/src/cmd/python and
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/sys/lib/python is covered by the Python Software Foundation License, reproduced
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in the file /sys/src/cmd/python/LICENSE.
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5. The Mercurial version control system in the subdirectories /sys/src/cmd/hg and
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/sys/lib/mercurial is covered by the GNU GPL, version 2, reproduced in
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the file /lib/legal/gpl.
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2011-08-27 13:43:49 +00:00
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Other, less notable exceptions are marked in the file tree with
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COPYING, COPYRIGHT, or LICENSE files.
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