CALL_BLOCK
rv = CALL_BLOCK((glob_b_block)pglob->gl_errblk, buf,
#define SELECT(x) CALL_BLOCK(select, x)
#define COMPAR(x,y) CALL_BLOCK(compar, x, y)
#define COMPAR(x, y) CALL_BLOCK(compar, x, y)
#define CMP(x, y) CALL_BLOCK(cmp, x, y)