===================================================================
RCS file: /cvs/mandoc/regress/mdoc/Dt/Makefile,v
retrieving revision 1.1
retrieving revision 1.6
diff -u -p -r1.1 -r1.6
--- mandoc/regress/mdoc/Dt/Makefile	2017/02/08 03:02:48	1.1
+++ mandoc/regress/mdoc/Dt/Makefile	2025/07/26 13:41:29	1.6
@@ -1,13 +1,10 @@
-# $OpenBSD: Makefile,v 1.1 2017/02/08 03:02:48 schwarze Exp $
+# $OpenBSD: Makefile,v 1.6 2025/07/26 13:41:29 schwarze Exp $
 
 REGRESS_TARGETS	 = badsec case dupe fourargs late
 REGRESS_TARGETS	+= missing noarg nobody nosec order
 LINT_TARGETS	 = badsec case dupe fourargs late
 LINT_TARGETS	+= missing noarg nobody nosec order
 
-SKIP_GROFF	 = badsec nobody
-SKIP_ASCII	 = badsec
-
 # When the section is missing from the man(7) .TH title line,
 # empty parentheses are shown in the page header.
 # When the section is missing from the mdoc(7) .Dt title line,
@@ -15,6 +12,20 @@ SKIP_ASCII	 = badsec
 # Hence, there is no bug-compatible translation from mdoc(7)
 # to man(7) for this case.  That's not mandoc(1)'s fault.
 
-SKIP_TMAN	 = fourargs late missing noarg nosec
+SKIP_TMAN	 = late missing noarg nosec
+
+# The man(7) .TH macro does not support architecture arguments,
+# so machine-dependent manuals cannot be converted faithfully.
+
+SKIP_TMAN	+= fourargs
+
+# groff-1.23.0 regressions:
+#  - An .Os macro now terminates the prologue, in the sense that the last
+#    .Dt macro before the first .Os macro governs the header, rather than
+#    the last .Dt macro before the first non-prologue macro.
+#  - The footer uses the absolute last .Dt macro, which is inconsistent
+#    with what the header uses.
+
+SKIP_GROFF	 = dupe late order
 
 .include <bsd.regress.mk>