* 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, Florian