Compiling the avr-libc demo project (PWM) doesnt work without the file iocompat.h in /usr/avr/include. Its installed in /usr/share/doc/avr-libc-1.4.6/examples/demo/iocompat.h (not in the search path) Reproducible: Always
iocompat.h is part of the demo project (an example of avr-libc included in the documentation), not of avr-libc itself. So it shouldn't be anywhere else than in the demo folder. Check your toolchain/makefile, it compiles fine here. This bug can be closed as INVALID.