[avr-libc-dev] EEPROM variables

[Artur Lipowski]

Current version of AVR-GCC requires for EEPROM variables a const qualifier
(without const: "error: xxxxxx causes a section type conflict").
Declarations of EEPROM handling functions in avr-libc totally ignore that
and to compile code without warnings an additional typecast is needed, eg.:

const uint8_t EE_sleep_time __attribute__ ((section (".eeprom"))) = 4;

eeprom_read_byte((uint8_t*)&EE_sleep_time)

It looks a little inconsistent.

I am not certain if it is a problem of the avr-libc or maybe AVR-GCC
compiler.
>From avr-libc point of view such variables are not pure constants and GCC
requirement is too restrictive.

What do you think about?
Maybe it will be better to change AVR-GCC behaviour?

Reagrds,
--
Artur Lipowski