Ok, no problem. I've switched my main development (back) to using normal git history-preserving branches for my incremental changes (not with any old history, though).
The repo now has two main branches: utrace-ptrace aka master utrace The "utrace" branch does not have the CONFIG_UTRACE_PTRACE code. The "utrace-ptrace" (aka master) branch forks from "utrace" and adds that. In the next few days I will update my scripts to produce patches. For the moment, my latest code is in GIT but not in patch files yet. Thanks, Roland