[Bug target/93182] [avr] Add -nodevicespecs option.

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93182

--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Wed Jan  8 09:46:07 2020
New Revision: 279996

URL: https://gcc.gnu.org/viewcvs?rev=279996&root=gcc&view=rev
Log:
        Backport from 2020-01-08 trunk r279995.

        Add -nodevicespecs option for avr.

        PR target/93182
        * config/avr/avr.opt (-nodevicespecs): New driver option.
        * config/avr/driver-avr.c (avr_devicespecs_file): Only issue
        "-specs=device-specs/..." if that option is not set.
        * doc/invoke.texi (AVR Options) <-nodevicespecs>: Document.


Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/config/avr/avr.opt
    branches/gcc-9-branch/gcc/config/avr/driver-avr.c
    branches/gcc-9-branch/gcc/doc/invoke.texi