#103 ATmega256 compile error with avr-libc eeprom.h

[Harald Kipp]

Trying to compile for Ethernut 1.3 and Ethernut 2.1 with ATmega2561 results in

c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:290: error: invalid conversion from 'const void*' to 'const uint8_t*'
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:290: error: initializing argument 1 of 'uint8_t eeprom_read_byte(const uint8_t*)'
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h: In function 'void eeprom_write_block(const void*, void*, size_t)':
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:398: error: ISO C++ forbids incrementing a pointer of type 'void*'
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:398: error: ISO C++ forbids incrementing a pointer of type 'const void*'
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:398: error: invalid conversion from 'void*' to 'uint8_t*'
c:/winavr/lib/gcc/../../avr/include/avr/eeprom.h:398: error: initializing argument 1 of 'void eeprom_write_byte(uint8_t*, uint8_t)'