M_COM             793 jdmarker.c           if (cinfo->unread_marker == (int) M_COM)
M_COM            1109 jdmarker.c         case M_COM:
M_COM            1377 jdmarker.c       if (marker_code == (int) M_COM) {
M_COM            1400 jdmarker.c       if (marker_code == (int) M_COM)
M_COM             380 rdjpgcom.c         case M_COM:
M_COM             327 wrjpgcom.c         case M_COM:			/* Existing COM: conditionally discard */
M_COM             567 wrjpgcom.c         write_marker(M_COM);