error: unknown type name ‘ctf_archive_t

[Martin Sebor <msebor@gmail.com>]

I've been getting the error below building binutils the last few
weeks:

In file included from /src/binutils-gdb/ld/ldlex.l:31,
                  from /src/binutils-gdb/ld/ldlex-wrapper.c:26:
/src/binutils-gdb/ld/ldlang.h:304:3: error: unknown type name 
‘ctf_archive_t’
   304 |   ctf_archive_t *the_ctf;
       |   ^~~~~~~~~~~~~

A discussion of it I found in bug 25064 suggests it's caused by
an outdated copy of the generated ld/ldlex.c file in the source
tree.  The build succeeds after I remove the file but I'd like
to know what other files I should remove (or more broadly, what
else I should do when re-building from a local copy) to make
sure I build what everyone else does. (I assume removing the whole
source tree and pulling a fresh copy is not the right way to do it.)

Thanks
Martin