[Bug target/65296] [avr] fix various issues with specs file generation

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65296

--- Comment #7 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Mon Mar 23 18:19:01 2015
New Revision: 221602

URL: https://gcc.gnu.org/viewcvs?rev=221602&root=gcc&view=rev
Log:
    PR target/65296
    * config/avr/driver-avr.c (avr_devicespecs_file): Allow to specify
    the same -mmcu=MCU more than once.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/driver-avr.c