| GCC RUNTIME LIBRARY EXCEPTION | |
| Version 3.1, 31 March 2009 | |
| Copyright (C) 2009 Free Software Foundation, Inc. <http://fsf.org/> | |
| Everyone is permitted to copy and distribute verbatim copies of this | |
| license document, but changing it is not allowed. | |
| This GCC Runtime Library Exception ("Exception") is an additional | |
| permission under section 7 of the GNU General Public License, version | |
| 3 ("GPLv3"). It applies to a given file (the "Runtime Library") that | |
| bears a notice placed by the copyright holder of the file stating that | |
| the file is governed by GPLv3 along with this Exception. | |
| When you use GCC to compile a program, GCC may combine portions of | |
| certain GCC header files and runtime libraries with the compiled | |
| program. The purpose of this Exception is to allow compilation of | |
| non-GPL (including proprietary) programs to use, in this way, the | |
| header files and runtime libraries covered by this Exception. | |
| 0. Definitions. | |
| A file is an "Independent Module" if it either requires the Runtime | |
| Library for execution after a Compilation Process, or makes use of an | |
| interface provided by the Runtime Library, but is not otherwise based | |
| on the Runtime Library. | |
| "GCC" means a version of the GNU Compiler Collection, with or without | |
| modifications, governed by version 3 (or a specified later version) of | |
| the GNU General Public License (GPL) with the option of using any | |
| subsequent versions published by the FSF. | |
| "GPL-compatible Software" is software whose conditions of propagation, | |
| modification and use would permit combination with GCC in accord with | |
| the license of GCC. | |
| "Target Code" refers to output from any compiler for a real or virtual | |
| target processor architecture, in executable form or suitable for | |
| input to an assembler, loader, linker and/or execution | |
| phase. Notwithstanding that, Target Code does not include data in any | |
| format that is used as a compiler intermediate representation, or used | |
| for producing a compiler intermediate representation. | |
| The "Compilation Process" transforms code entirely represented in | |
| non-intermediate languages designed for human-written code, and/or in | |
| Java Virtual Machine byte code, into Target Code. Thus, for example, | |
| use of source code generators and preprocessors need not be considered | |
| part of the Compilation Process, since the Compilation Process can be | |
| understood as starting with the output of the generators or | |
| preprocessors. | |
| A Compilation Process is "Eligible" if it is done using GCC, alone or | |
| with other GPL-compatible software, or if it is done without using any | |
| work based on GCC. For example, using non-GPL-compatible Software to | |
| optimize any GCC intermediate representations would not qualify as an | |
| Eligible Compilation Process. | |
| 1. Grant of Additional Permission. | |
| You have permission to propagate a work of Target Code formed by | |
| combining the Runtime Library with Independent Modules, even if such | |
| propagation would otherwise violate the terms of GPLv3, provided that | |
| all Target Code was generated by Eligible Compilation Processes. You | |
| may then convey such a combination under terms of your choice, | |
| consistent with the licensing of the Independent Modules. | |
| 2. No Weakening of GCC Copyleft. | |
| The availability of this Exception does not imply any general | |
| presumption that third-party software is unaffected by the copyleft | |
| requirements of the license of GCC. | |