[Bug bootstrap/82548] After -r 253646 GCC 8.0 can't build cross compiler for mingw32

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82548

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Oct 14 12:32:17 2017
New Revision: 253753

URL: https://gcc.gnu.org/viewcvs?rev=253753&root=gcc&view=rev
Log:
        PR bootstrap/82548
        * config.gcc (*-*-solaris2*, i[34567]86-*-cygwin*,
        x86_64-*-cygwin*, i[34567]86-*-mingw* | x86_64-*-mingw*): Append
        objects to extra_objs instead of overwriting it.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.gcc