importing another file into top-level include directory?

[DJ Delorie]

> Are these "libiberty commit rules" explained anywhere?  I wasn't
> aware that these files are treated specially, and I'm wondering what
> else I might need to know.  I don't see anything in either the GCC
> or Binutils web sites, and I'm not sure where else to look.

in src/MAINTAINERS in binutils:

include/
	See binutils/, gdb/, sid/, gcc/, libiberty/ etc.

libiberty/; libiberty's part of include/ 
	gcc: http://gcc.gnu.org
	Changes need to be done in tandem with the official GCC
	sources or submitted to the master file maintainer and brought
	in via a merge.  Note: approved patches in gcc's libiberty
	are automatically approved in this libiberty also; feel free
	to merge them yourself if needed sooner than the next merge.
	Otherwise, changes are automatically merged, usually within
	a day.


("libiberty's part of include" means any file there common between gcc
and src)