https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410
--- Comment #5 from Giulio Benetti <giulio.benetti at benettiengineering dot com> --- Disabling parallel build it turns out that the file where it hangs is: src/grammars/belle_sip_messageParser.c So I'm going to add .i and .s attachments for it.