license: BSD-3-Clause
1997-1998 Todd C. Miller
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license: BSD-4-Clause-UC
1988-1994 The Regents of the University of California
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license: GPL-3.0-or-later WITH Autoconf-exception-macro
2008 Alan Woodland
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license: HPND-sell-variant-MIT-disclaimer
2000 Jim Knoble
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license: NCSA
1998-2003 Mark D. Roth
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1998-2003 Mark D. Roth