[Bug target/54536] New: [avr]: incorrect crt with -mmcu=at90usb1287

[michael.schaenzler at nurfuerspam dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54536

             Bug #: 54536
           Summary: [avr]: incorrect crt with -mmcu=at90usb1287
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: michael.schaenz...@nurfuerspam.de


The avr-gcc driver is linking against crtusb1286.o when using the mcu option
-mmcu=at90usb1287. It should use crtusb1287.o instead.

Since crtusb1286.o and crtusb1287.o are identical this is ok for the default 
avr-libc multilib setup but causes problems with non-standard build systems
(e.g. device specific builds).