[Bug driver/81829] [7 Regression] /usr/bin/gcc-{ar,nm,ranlib} segfault without arguments

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81829

--- Comment #10 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Tue Nov 21 16:00:55 2017
New Revision: 255009

URL: https://gcc.gnu.org/viewcvs?rev=255009&root=gcc&view=rev
Log:
Backport r253886

2017-11-21  Martin Liska  <mliska@suse.cz>

        Backport from mainline
        2017-10-19  Martin Liska  <mliska@suse.cz>

        PR driver/81829
        * file-find.c (remove_prefix): Remove.
        * file-find.h (remove_prefix): Likewise.
        * gcc-ar.c: Remove smartness of lookup.

Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/file-find.c
    branches/gcc-7-branch/gcc/file-find.h
    branches/gcc-7-branch/gcc/gcc-ar.c