diff --git a/BUILDING b/BUILDING
index f74acf787bbd..ef9ce0df75ee 100644
--- a/BUILDING
+++ b/BUILDING
@@ -247,11 +247,6 @@ CONFIGURATION
 
                  Default: 2
 
-     MKCATPAGES  Can be set to "yes" or "no".  Indicates whether preformatted
-                 plaintext manual pages will be created during a build.
-
-                 Default: "no"
-
      MKCROSSGDB  Can be set to "yes" or "no".  Create a cross-gdb as a host
                  tool.
 
@@ -385,9 +380,8 @@ CONFIGURATION
 
      MKSHARE     Can be set to "yes" or "no".  Indicates whether files
                  destined to reside in DESTDIR/usr/share will be built and
-                 installed during a build.  If set to "no", then all of
-                 MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to
-                 "no" unconditionally.
+                 installed during a build.  If set to "no", then all of MKDOC,
+                 MKINFO, MKMAN, and MKNLS will be set to "no" unconditionally.
 
                  Default: "yes"
 
diff --git a/distrib/sets/sets.subr b/distrib/sets/sets.subr
index 2eb9444119bd..0629049cc27f 100644
--- a/distrib/sets/sets.subr
+++ b/distrib/sets/sets.subr
@@ -1,4 +1,4 @@
-#	$NetBSD: sets.subr,v 1.193 2020/09/26 17:49:49 jmcneill Exp $
+#	$NetBSD: sets.subr,v 1.194 2020/11/08 14:52:35 kamil Exp $
 #
 
 #
@@ -192,7 +192,7 @@ SUBST="${SUBST};s#@MACHINE@#${MACHINE}#g"
 # In each file, a record consists of a path and a System Package name,
 # separated by whitespace. E.g.,
 #
-# 	# $NetBSD: sets.subr,v 1.193 2020/09/26 17:49:49 jmcneill Exp $
+# 	# $NetBSD: sets.subr,v 1.194 2020/11/08 14:52:35 kamil Exp $
 # 	.			base-sys-root	[keyword[,...]]
 # 	./altroot		base-sys-root
 # 	./bin			base-sys-root
@@ -250,9 +250,6 @@ SUBST="${SUBST};s#@MACHINE@#${MACHINE}#g"
 #	endian=<n>		<n> = value of ${TARGET_ENDIANNESS}
 #
 #
-#	.cat			if ${MKMANZ} != "no" && ${MKCATPAGES} != "no"
-#				  automatically append ".gz" to the filename
-#
 #	.man			if ${MKMANZ} != "no" && ${MKMAN} != "no"
 #				  automatically append ".gz" to the filename
 #
@@ -354,8 +351,6 @@ list_set_files()
 			if ("uefi" in wanted) {
 				wanted["uefi=" "'"${HAVE_UEFI}"'"] = 1
 			}
-			if (("man" in wanted) && ("catpages" in wanted))
-				wanted[".cat"] = 1
 			if (("man" in wanted) && ("manpages" in wanted))
 				wanted[".man"] = 1
 			if ("endian" in wanted)
diff --git a/doc/BUILDING.mdoc b/doc/BUILDING.mdoc
index 86dd783f7962..5ebfed19be7d 100644
--- a/doc/BUILDING.mdoc
+++ b/doc/BUILDING.mdoc
@@ -1,4 +1,4 @@
-.\"	$NetBSD: BUILDING.mdoc,v 1.131 2020/10/13 01:59:32 thorpej Exp $
+.\"	$NetBSD: BUILDING.mdoc,v 1.132 2020/11/08 14:52:35 kamil Exp $
 .\"
 .\" Copyright (c) 2001-2011 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -360,7 +360,7 @@ either the process environment or the
 configuration file specified by
 .Sy MAKECONF .
 .
-.Bl -tag -width "MKCATPAGES"
+.Bl -tag -width "MKXXXXXXXX"
 .
 .It Sy BUILDID
 Identifier for the build.
@@ -500,12 +500,6 @@ flag.
 .DFLT
 2
 .
-.It Sy MKCATPAGES
-.YorN
-Indicates whether preformatted plaintext manual pages will be created
-during a build.
-.DFLTn
-.
 .It Sy MKCROSSGDB
 .YorN
 Create a cross-gdb as a host tool.
@@ -698,7 +692,7 @@ will be built and installed during a build.
 If set to
 .Dq no ,
 then all of
-.Sy MKCATPAGES , MKDOC , MKINFO , MKMAN ,
+.Sy MKDOC , MKINFO , MKMAN ,
 and
 .Sy MKNLS
 will be set to
diff --git a/share/man/man5/mk.conf.5 b/share/man/man5/mk.conf.5
index afbb7c3aa734..b1c78326dab5 100644
--- a/share/man/man5/mk.conf.5
+++ b/share/man/man5/mk.conf.5
@@ -1,4 +1,4 @@
-.\"	$NetBSD: mk.conf.5,v 1.81 2020/10/27 06:33:38 rin Exp $
+.\"	$NetBSD: mk.conf.5,v 1.82 2020/11/08 14:52:35 kamil Exp $
 .\"
 .\"  Copyright (c) 1999-2003 The NetBSD Foundation, Inc.
 .\"  All rights reserved.
@@ -258,12 +258,6 @@ If
 based frontends are used.
 .DFLTy
 .
-.It Sy MKCATPAGES
-.YorN
-Indicates whether preformatted plaintext manual pages will be created
-and installed.
-.DFLTn
-.
 .It Sy MKCLEANSRC
 .YorN
 Indicates whether
@@ -579,7 +573,7 @@ Indicates whether manual pages will be installed.
 If
 .Dq no ,
 acts as
-.Sy MKCATPAGES=no MKHTML=no .
+.Sy MKHTML=no .
 .
 .It Sy MKMANZ
 .YorN
@@ -745,7 +739,7 @@ will be built and installed.
 If
 .Dq no ,
 acts as
-.Sy MKCATPAGES=no MKDOC=no MKINFO=no MKHTML=no MKMAN=no MKNLS=no .
+.Sy MKDOC=no MKINFO=no MKHTML=no MKMAN=no MKNLS=no .
 .
 .It Sy MKSKEY
 .YorN
diff --git a/share/mk/bsd.README b/share/mk/bsd.README
index faf7f07b8620..172b314dfc2b 100644
--- a/share/mk/bsd.README
+++ b/share/mk/bsd.README
@@ -1,4 +1,4 @@
-#	$NetBSD: bsd.README,v 1.412 2020/10/16 06:55:36 nia Exp $
+#	$NetBSD: bsd.README,v 1.413 2020/11/08 14:52:35 kamil Exp $
 #	@(#)bsd.README	8.2 (Berkeley) 4/2/94
 
 This is the README file for the make "include" files for the NetBSD
@@ -130,9 +130,6 @@ MKBSDTAR	If "yes", use the libarchive based cpio and tar instead of
 		the pax frontends.
 		Default: yes
 
-MKCATPAGES	If "no", don't build or install the catman pages.
-		Default: no
-
 MKCOMPAT  	If "no", don't build or install the src/compat.
 		Default: yes on amd64/mips64/sparc64, no elsewhere.
 
@@ -348,8 +345,8 @@ MKLVM		If "no", don't build or install the logical volume manager
 		and device mapper tools and libraries
 		Default: yes
 
-MKMAN		If "no", don't build or install the man or catman pages,
-		and also acts as "MKCATPAGES=no MKHTML=no".
+MKMAN		If "no", don't build or install the man pages,
+		and also acts as "MKHTML=no".
 		Default: yes
 
 MKMANDOC	If "yes", mandoc is built as tool and used to compile
@@ -460,7 +457,7 @@ MKSANITIZER	if "yes", use the selected sanitizer to compile userland
 		depends on the compiler version and target CPU architecture.
 		Default: no
 
-MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
+MKSHARE		If "no", act as "MKDOC=no MKHTML=no MKINFO=no
 		MKMAN=no MKNLS=no".
 		I.e, don't build catman pages, documentation, Info
 		documentation, man pages, NLS files, ...
@@ -729,8 +726,8 @@ MANOWN		Manual owner.  [root]
 MANMODE		Manual mode.  [${NONBINMODE}]
 
 MANINSTALL	Manual installation type.  Space separated list:
-			catinstall, htmlinstall, maninstall
-		Default value derived from MKCATPAGES and MKHTML.
+			htmlinstall, maninstall
+		Default value derived from MKHTML.
 
 LDSTATIC	Control program linking; if set blank, link everything
 		dynamically.  If set to "-static", link everything statically.
@@ -1461,8 +1458,6 @@ links.
 
 It has a three targets:
 
-	catinstall:
-		Install the preformatted manual pages and their links.
 	htmlinstall:
 		Install the HTML manual pages and their links.
 	maninstall:
diff --git a/share/mk/bsd.man.mk b/share/mk/bsd.man.mk
index cef0eb9ba379..dc00dc18bde9 100644
--- a/share/mk/bsd.man.mk
+++ b/share/mk/bsd.man.mk
@@ -1,10 +1,10 @@
-#	$NetBSD: bsd.man.mk,v 1.120 2019/01/21 21:11:54 christos Exp $
+#	$NetBSD: bsd.man.mk,v 1.121 2020/11/08 14:52:35 kamil Exp $
 #	@(#)bsd.man.mk	8.1 (Berkeley) 6/8/93
 
 .include <bsd.init.mk>
 
 ##### Basic targets
-.PHONY:		catinstall maninstall catpages manpages catlinks manlinks
+.PHONY:		maninstall manpages manlinks
 .PHONY:		htmlinstall htmlpages htmllinks
 .PHONY:		lintmanpages
 realinstall:	${MANINSTALL}
@@ -28,17 +28,6 @@ TMACDEPDIR?=	/usr/share/tmac
 .endif
 
 HTMLDIR?=	${DESTDIR}${MANDIR}
-.if ${MKMANDOC} == yes && !defined(NOMANDOC)
-CATDEPS?=
-.else
-CATDEPS?=	${TMACDEPDIR}/andoc.tmac \
-		${TMACDEPDIR}/doc.tmac \
-		${TMACDEPDIR}/mdoc/doc-common \
-		${TMACDEPDIR}/mdoc/doc-ditroff \
-		${TMACDEPDIR}/mdoc/doc-nroff \
-		${TMACDEPDIR}/mdoc/doc-syms
-.endif
-MANTARGET?=	cat
 
 MAN?=
 MLINKS?=
@@ -131,74 +120,6 @@ manlinks::	${_t}
 .endfor
 .endif # ${MKMAN} != "no"
 
-##### Build and install rules (plaintext pages)
-
-.if (${MKCATPAGES} != "no") && (${MKMAN} != "no")
-catinstall:	catpages catlinks
-catpages::	# ensure target exists
-CATPAGES=	${MAN:C/\.(${_MSECTIONREGEX})\$/.cat\1${MANSUFFIX}/}
-
-realall:	${CATPAGES}
-.NOPATH:	${CATPAGES}
-.SUFFIXES:	${_MSECTIONS:@N@.cat$N${MANSUFFIX}@}
-.MADE:	${CATDEPS}
-
-${_MSECTIONS:@N@.$N.cat$N${MANSUFFIX}@}: ${CATDEPS}	# build rule
-	${_MKTARGET_FORMAT}
-.if ${MKMANDOC} == yes && !defined(NOMANDOC)
-	if test ""${NOMANDOC.${.IMPSRC:T}:tl:Q} != "yes"; then \
-		${TOOL_MANDOC_ASCII} ${.IMPSRC} ${MANCOMPRESS} \
-		    > ${.TARGET}.tmp && ${MV} ${.TARGET}.tmp ${.TARGET}; \
-	else \
-		${TOOL_ROFF_ASCII} -mandoc ${.IMPSRC} ${MANCOMPRESS} \
-		    > ${.TARGET}.tmp && ${MV} ${.TARGET}.tmp ${.TARGET}; \
-	fi
-.elif defined(USETBL)
-	${TOOL_TBL} ${.IMPSRC} | ${TOOL_ROFF_ASCII} -mandoc ${MANCOMPRESS} \
-	    > ${.TARGET}.tmp && ${MV} ${.TARGET}.tmp ${.TARGET}
-.else
-	${TOOL_ROFF_ASCII} -mandoc ${.IMPSRC} ${MANCOMPRESS} \
-	    > ${.TARGET}.tmp && ${MV} ${.TARGET}.tmp ${.TARGET}
-.endif
-
-.for F in ${CATPAGES:S/${MANSUFFIX}$//:O:u}
-_F:=		${DESTDIR}${MANDIR}/${F:T:E}${MANSUBDIR}/${F:R}.0${MANSUFFIX}
-
-.if ${MKUPDATE} == "no"
-${_F}!		${F}${MANSUFFIX} __installpage		# install rule
-.if !defined(BUILD) && !make(all) && !make(${F})
-${_F}!		.MADE					# no build at install
-.endif
-.else
-${_F}:		${F}${MANSUFFIX} __installpage		# install rule
-.if !defined(BUILD) && !make(all) && !make(${F})
-${_F}:		.MADE					# no build at install
-.endif
-.endif
-
-catpages::	${_F}
-.PRECIOUS:	${_F}					# keep if install fails
-.endfor
-
-catlinks::						# link install
-
-.for _src _dst in ${MLINKS}
-_l:=${DESTDIR}${MANDIR}/cat${_src:T:E}${MANSUBDIR}/${_src:R}.0${MANSUFFIX}
-_t:=${DESTDIR}${MANDIR}/cat${_dst:T:E}${MANSUBDIR}/${_dst:R}.0${MANSUFFIX}
-
-# Handle case conflicts carefully, when _dst occurs
-# more than once after case flattening
-.if ${MKUPDATE} == "no" || ${MLINKS:${_FLATTEN}M${_dst:${_FLATTEN}Q}:[\#]} > 1
-${_t}!		${_l} __linkinstallpage
-.else
-${_t}:		${_l} __linkinstallpage
-.endif
-
-catlinks::	${_t}
-.PRECIOUS:	${_t}
-.endfor
-.endif # (${MKCATPAGES} != "no") && (${MKMAN} != "no")
-
 ##### Build and install rules (HTML pages)
 
 .if (${MKHTML} != "no") && (${MKMAN} != "no")		# {
@@ -276,17 +197,13 @@ htmllinks::	${_t}
 .undef _F
 
 .if !empty(MAN) && (${MKMAN} != "no")
-.if (${MKCATPAGES} != "no")
-CLEANDIRFILES+= ${CATPAGES}
-.endif
 .if !empty(MANSUFFIX)
-CLEANDIRFILES+= ${MANPAGES} ${CATPAGES:S/${MANSUFFIX}$//}
+CLEANDIRFILES+= ${MANPAGES}
 .endif
 .if ${MKHTML} != "no"
 CLEANDIRFILES+= ${HTMLPAGES}
 .endif
 .endif
-# (XXX ${CATPAGES:S...} cleans up old .catN files where .catN.gz now used)
 
 .if !empty(MANPAGES)
 lintmanpages: ${MANPAGES}
@@ -307,4 +224,4 @@ describe:
 .include <bsd.sys.mk>
 .include <bsd.clean.mk>
 
-${TARGETS} catinstall maninstall htmlinstall: # ensure existence
+${TARGETS} maninstall htmlinstall: # ensure existence
diff --git a/share/mk/bsd.own.mk b/share/mk/bsd.own.mk
index 905f974ce37b..c2f465d67510 100644
--- a/share/mk/bsd.own.mk
+++ b/share/mk/bsd.own.mk
@@ -1,4 +1,4 @@
-#	$NetBSD: bsd.own.mk,v 1.1230 2020/11/05 13:03:31 rin Exp $
+#	$NetBSD: bsd.own.mk,v 1.1231 2020/11/08 14:52:35 kamil Exp $
 
 # This needs to be before bsd.init.mk
 .if defined(BSD_MK_COMPAT_FILE)
@@ -1355,9 +1355,6 @@ MKHTML:=	no
 .endif
 
 _MANINSTALL=	maninstall
-.if ${MKCATPAGES} != "no"
-_MANINSTALL+=	catinstall
-.endif
 .if ${MKHTML} != "no"
 _MANINSTALL+=	htmlinstall
 .endif