[Bug driver/110408] New: gcc 13 crashes with %rename in specs

["brjd_epdjq36 at kygur dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110408

            Bug ID: 110408
           Summary: gcc 13 crashes with %rename in specs
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: brjd_epdjq36 at kygur dot com
  Target Milestone: ---

According to https://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html 

if I apply this instruction to redefine only a part of the specs file:

%rename lib                 old_lib

*lib:
--start-group -lgcc -lc -leval1 --end-group %(old_lib)


,it is not necessary to change the whole specs file. 


Still, in gcc 13 it crashes and returns this error:

g++-13: fatal error: specs file malformed after 35 characters
compilation terminated.

35 characters is the position after the last character in the old_lib string.

I test it with an older compiler gcc 4 and it is wonderful, no error.
I suppose that this manual is not updated to work in gcc 13 and there are
changes in the syntax.