size_t n;
/* For now, ignore SEPARATE and LAYERED. */
- (void) ( lex_match_id (lexer, "SEPARATE") || lex_match_id (lexer, "LAYERED") );
+ (void) (lex_match_id (lexer, "SEPARATE") || lex_match_id (lexer, "LAYERED"));
lex_match (lexer, T_BY);
if (!parse_variables (lexer, dataset_dict (ds), &v, &n, PV_NO_DUPLICATE))