[avr-libc-dev] mismatch of supported devices in avr-libc 1.7.0 and gcc-4.5.1

[Rolf Ebert]

I have just rebuilt a new compiler from pristine gcc-4.5.1 sources. If I 
want to compile avr-libc-1.7.0 the compiler stops when building gcrt1.o 
for attiny2313a: unknown MCU specified.

Is there a way to either omit the new MCUs when building avr-libc or to 
add support for the new devices in gcc-4.5?

   Rolf