.de sO
.mso mdoc/\\$1
..
.sO doc-doc-common
.sO doc-doc-syms
.if t \{\
. sO docj-ditroff
.\}
.if n \{\
. sO docj-nroff
.sO doc-common
.sO doc-syms
.\" NS Db macro - start/stop DEBUG MODE
.\" NS Db register DEBUG MODE
.\" NS iN register DEBUG MODE (inline if 1, to stderr if 0 (default))