[avr-gcc-list] Inline attribute

[Ron]

Hi Folks,

How do you declare an external function inline when it is used in a
number of different files? For example, if I define the function in a
header as:

inline void __attribute__ ((always_inline)) RestoreState(STATE_REG ps)
{
   SREG = ps;
}

I get multiple definition errors when it is invoked in other files. If I
define just the prototype in the header:

inline void __attribute__ ((always_inline)) RestoreState(STATE_REG ps);

and define the function in a corresponding C file as:

inline void RestoreState(STATE_REG ps)
{
   SREG = ps;
}

gcc complains it cannot find the function body when it is invoked in
other files. I have tried various forms of the inline syntax with no
change to the error message. 

Ron