1 musl as a whole is licensed under the following standard MIT license:
3 ----------------------------------------------------------------------
4 Copyright © 2005-2019 Rich Felker, et al.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice shall be
15 included in all copies or substantial portions of the Software.
17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
21 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 ----------------------------------------------------------------------
26 Authors/contributors include:
77 M Farkas-Dyck (Strake)
111 Portions of this software are derived from third-party works licensed
112 under terms compatible with the above MIT license:
114 The TRE regular expression implementation (src/regex/reg* and
115 src/regex/tre*) is Copyright © 2001-2008 Ville Laurikari and licensed
116 under a 2-clause BSD license (license text in the source files). The
117 included version has been heavily modified by Rich Felker in 2012, in
118 the interests of size, simplicity, and namespace cleanliness.
120 Much of the math library code (src/math/* and src/complex/*) is
121 Copyright © 1993,2004 Sun Microsystems or
122 Copyright © 2003-2011 David Schultz or
123 Copyright © 2003-2009 Steven G. Kargl or
124 Copyright © 2003-2009 Bruce D. Evans or
125 Copyright © 2008 Stephen L. Moshier
126 and labelled as such in comments in the individual source files. All
127 have been licensed under extremely permissive terms.
129 The ARM memcpy code (src/string/arm/memcpy_el.S) is Copyright © 2008
130 The Android Open Source Project and is licensed under a two-clause BSD
131 license. It was taken from Bionic libc, used on Android.
133 The implementation of DES for crypt (src/crypt/crypt_des.c) is
134 Copyright © 1994 David Burren. It is licensed under a BSD license.
136 The implementation of blowfish crypt (src/crypt/crypt_blowfish.c) was
137 originally written by Solar Designer and placed into the public
138 domain. The code also comes with a fallback permissive license for use
139 in jurisdictions that may not recognize the public domain.
141 The smoothsort implementation (src/stdlib/qsort.c) is Copyright © 2011
142 Valentin Ochs and is licensed under an MIT-style license.
144 The x86_64 port was written by Nicholas J. Kain and is licensed under
145 the standard MIT terms.
147 The mips and microblaze ports were originally written by Richard
148 Pennington for use in the ellcc project. The original code was adapted
149 by Rich Felker for build system and code conventions during upstream
150 integration. It is licensed under the standard MIT terms.
152 The mips64 port was contributed by Imagination Technologies and is
153 licensed under the standard MIT terms.
155 The powerpc port was also originally written by Richard Pennington,
156 and later supplemented and integrated by John Spencer. It is licensed
157 under the standard MIT terms.
159 All other files which have no copyright comments are original works
160 produced specifically for use as part of this library, written either
161 by Rich Felker, the main author of the library, or by one or more
162 contibutors listed above. Details on authorship of individual files
163 can be found in the git version control history of the project. The
164 omission of copyright and license comments in each file is in the
165 interest of source tree size.
167 In addition, permission is hereby granted for all public header files
168 (include/* and arch/*/bits/*) and crt files intended to be linked into
169 applications (crt/*, ldso/dlstart.c, and arch/*/crt_arch.h) to omit
170 the copyright notice and permission notice otherwise required by the
171 license, and to use these files without any requirement of
172 attribution. These files include substantial contributions from:
182 all of whom have explicitly granted such permission.
184 This file previously contained text expressing a belief that most of
185 the files covered by the above exception were sufficiently trivial not
186 to be subject to copyright, resulting in confusion over whether it
187 negated the permissions granted in the license. In the spirit of
188 permissive licensing, and of not having licensing issues being an
189 obstacle to adoption, that text has been removed.