Hello Florian, > * Jochen via Gcc-help Keil: > > > However, upon closer inspection of the GCC sources I found that the > > files in the `libcc1` and `libcpp` folders do only carry the licensing > > terms of GPL-3.0+ without any mention of the Runtime Exception. Is it > > still valid to use those libraries with statically linked proprietary > > code? > > You will ask your own lawyer for a definite answer. > > The intent is that libcc1 and libcpp can only used from programs which are > free software, regardless of how the program is linked. Thanks for your answer! For clarification, I was wondering if the license terms in `COPYING.RUNTIME` from the GCC distribution tarball root directory also apply to the `libcc1` and `libcpp` sub-directories. There are other directories where the files explicitly state the Runtime Exception in addition to the GPL-3.0+ license. But given the files for `libcc1` and `libcpp` we are not sure what the scope and purpose of the `COPYING.RUNTIME` file is. I don't think our lawyer can help with that question. 😊 Thank you very much, Jochen