I want to use some of the code from
manfnt.mf. Perhaps my situation is best summarized by this (draft) commit message (slightly edited to look okay when processed as markdown):
New file dbend.mf
Copy of http://mirrors.ctan.org/systems/knuth/dist/lib/manfnt.mf, which has a modification date of "1989-08-11 11:39:25" listed.
http://ctan.org/tex-archive/systems/knuth/dist/lib says that this is under the Knuth License (http://ctan.org/license/knuth):
This software is copyright and you are explicitly granted a
license which gives you, the “user” of the software, legal
permission to copy, distribute and/or modify the software, so long as if you modify the software then it carry a different name from the original software.
I have already renamed it preparatory to modifying it. (I was going to do this regardless of the license because I plan to strip out everything but the "dangerous bend" symbol.)
/usr/share/doc/texlive-base/Licenses.gzgive a license for this file? All I could find was this in the latter:
misc: texmf-dist/fonts/source/public/misc/* texmf-dist/fonts/tfm/public/misc/* texmf-dist/omega/ocp/misc/* texmf-dist/omega/otp/misc/* texmf-dist/tex/generic/misc/* texmf-dist/tex/plain/misc/*
How does CTAN "know" that this license applies?
I didn't see anything about this in-tree, either on CTAN or on ftp.cs.stanford.edu ...
Oh, huh, in checking that I had the right domain just now, I noticed ftp://ftp.cs.stanford.edu/pub/tex/README.KNUTH, which seems to say something at least similar. (
manfnt.mfis in ftp://ftp.cs.stanford.edu/pub/tex/dist/lib/.)
What should I put in the license blurb for my modified file, if I want to (say) CC0 my contributions?