===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/read.c,v
retrieving revision 1.189
retrieving revision 1.190
diff -u -r1.189 -r1.190
--- src/usr.bin/mandoc/read.c	2020/04/18 20:28:46	1.189
+++ src/usr.bin/mandoc/read.c	2020/04/24 11:58:02	1.190
@@ -1,4 +1,4 @@
-/* $OpenBSD: read.c,v 1.189 2020/04/18 20:28:46 schwarze Exp $ */
+/* $OpenBSD: read.c,v 1.190 2020/04/24 11:58:02 schwarze Exp $ */
 /*
  * Copyright (c) 2010-2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
@@ -552,7 +552,7 @@
 
 	struct buf	 blk;
 	struct buf	*save_primary;
-	const char	*save_filename;
+	const char	*save_filename, *cp;
 	size_t		 offset;
 	int		 save_filenc, save_lineno;
 	int		 with_mmap;
@@ -560,7 +560,13 @@
 	if (recursion_depth > 64) {
 		mandoc_msg(MANDOCERR_ROFFLOOP, curp->line, 0, NULL);
 		return;
-	}
+	} else if (recursion_depth == 0 &&
+	    (cp = strrchr(filename, '.')) != NULL &&
+            cp[1] >= '1' && cp[1] <= '9')
+                curp->man->filesec = cp[1];
+        else
+                curp->man->filesec = '\0';
+
 	if (read_whole_file(curp, fd, &blk, &with_mmap) == -1)
 		return;