[[!meta copyright="Copyright © 2008, 2009 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] [[!tag open_issue_mig]] E.g., both `/usr/include/hurd/process.h` and `/usr/include/hurd/process_request.h` use `_process_user_` as an inclusion guard. This leads to problems when both are needed, as is the case in [[GDB]]'s `gdb/gnu-nat.c`.