usage             576 gc/cord/de.c       if (argc != 2) goto usage;
usage             594 gc/cord/de.c   usage:
usage             168 src/gauche-config.c     if (argc < 3) usage();
usage             217 src/gauche-config.c     if (argc < 2) usage();
usage             230 src/gauche-config.c         usage();
usage             194 src/main.c             case '?': usage(); break;