There's a specific exemption in the license for this though: "The permission you need—to convey the object code from these GCC libraries under your own project

There's a specific exemption in the license for this though: "The permission you need—to convey the object code from these GCC libraries under your own project's license—is primarily contained in section 2: 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." http://www.gnu.org/licenses/gcc-exception-3.1-faq.html http://www.gnu.org/licenses/gcc-exception-3.1-faq.html