struct fz_track_usage_data {
int count;
const char *function;
int line;
const char *desc;
struct fz_track_usage_data *next;
}
#define FZ_TRACK_LABEL(A)
#define FZ_TRACK_FUNCTION()
void
fz_track_usage (
track_usage_data *data,
const char *function,
int line,
const char *desc
)