problems with __packed__

[duchonic]

I use some

/**
 * @brief user data memory (NFC EEPROM)
 * @ingroup data
 */
struct __attribute__((__packed__)) EepromData {
	MagicNumber magicNumber;
	SensorConfiguration sensorConfiguraiton;
	Display display;
...
};

and got

Processing memory/data.c as C/C++ (c)
memory/data.c(50): syntax error at token (
memory/data.c(50): trying to match class_suffix at '('
memory/data.c(50): syntax error at token __packed__
memory/data.c(50): trying to match link_item at '__packed__'
memory/data.c(50): syntax error at token __packed__
memory/data.c(50): trying to match link_item at '__packed__'
memory/data.c(50): syntax error at token )
memory/data.c(50): trying to match start at ')'