1Emscripten is available under 2 licenses, the MIT license and the2University of Illinois/NCSA Open Source License.34Both are permissive open source licenses, with little if any5practical difference between them.67The reason for offering both is that (1) the MIT license is8well-known, while (2) the University of Illinois/NCSA Open Source9License allows Emscripten's code to be integrated upstream into10LLVM, which uses that license, should the opportunity arise.1112The full text of both licenses follows.1314==============================================================================1516Copyright (c) 2010-2014 Emscripten authors, see AUTHORS file.1718Permission is hereby granted, free of charge, to any person obtaining a copy19of this software and associated documentation files (the "Software"), to deal20in the Software without restriction, including without limitation the rights21to use, copy, modify, merge, publish, distribute, sublicense, and/or sell22copies of the Software, and to permit persons to whom the Software is23furnished to do so, subject to the following conditions:2425The above copyright notice and this permission notice shall be included in26all copies or substantial portions of the Software.2728THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR29IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,30FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE31AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER32LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,33OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN34THE SOFTWARE.3536==============================================================================3738Copyright (c) 2010-2014 Emscripten authors, see AUTHORS file.39All rights reserved.4041Permission is hereby granted, free of charge, to any person obtaining a42copy of this software and associated documentation files (the43"Software"), to deal with the Software without restriction, including44without limitation the rights to use, copy, modify, merge, publish,45distribute, sublicense, and/or sell copies of the Software, and to46permit persons to whom the Software is furnished to do so, subject to47the following conditions:4849 Redistributions of source code must retain the above copyright50 notice, this list of conditions and the following disclaimers.5152 Redistributions in binary form must reproduce the above53 copyright notice, this list of conditions and the following disclaimers54 in the documentation and/or other materials provided with the55 distribution.5657 Neither the names of Mozilla,58 nor the names of its contributors may be used to endorse59 or promote products derived from this Software without specific prior60 written permission. 6162THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS63OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF64MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.65IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR66ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,67TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE68SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.6970==============================================================================7172This program uses portions of Node.js source code located in src/library_path.js,73in accordance with the terms of the MIT license. Node's license follows:7475 """76 Copyright Joyent, Inc. and other Node contributors. All rights reserved.77 Permission is hereby granted, free of charge, to any person obtaining a copy78 of this software and associated documentation files (the "Software"), to79 deal in the Software without restriction, including without limitation the80 rights to use, copy, modify, merge, publish, distribute, sublicense, and/or81 sell copies of the Software, and to permit persons to whom the Software is82 furnished to do so, subject to the following conditions:8384 The above copyright notice and this permission notice shall be included in85 all copies or substantial portions of the Software.8687 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR88 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,89 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE90 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER91 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING92 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS93 IN THE SOFTWARE.94 """9596The musl libc project is bundled in this repo, and it has the MIT license, see97system/lib/libc/musl/COPYRIGHT9899The third_party/ subdirectory contains code with other licenses. None of it is100used by default, but certain options use it (e.g., the optional closure compiler101flag will run closure compiler from third_party/).102