devel/scmcvs: do not require mkinstalldirs

Two m4 files add requirements for mkinstalldirs, but it has long been
replaced.

devel/scmcvs/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.23 2019/10/11 09:27:15 jperkin Exp $
+$NetBSD: distinfo,v 1.24 2021/01/20 03:09:03 brook Exp $
 
 SHA1 (cvs-1.12.13.tar.bz2) = 93a8dacc6ff0e723a130835713235863f1f5ada9
 RMD160 (cvs-1.12.13.tar.bz2) = ba3048e3e2d99ae78f6a759889b615acf65dd487
@@ -29,6 +29,8 @@ SHA1 (patch-bb) = 153dc447751f3d52bca5033f33a95f408c5775db
 SHA1 (patch-lib_mktime.c) = 526a0e24c6399d527ae6a463ea91e993f9f7e920
 SHA1 (patch-lib_vasnprintf.c) = fbba4d923d3c61ebcf79e82779919dc1f8a570c0
 SHA1 (patch-m4_fpending.m4) = 6b7c96d8f092e179d2cfdf036bcbfd3855292e0f
+SHA1 (patch-m4_gettext.m4) = 3b58f75d1dde872aad23ceca12a363badaa4e0b3
+SHA1 (patch-m4_po.m4) = 43a11b3840f3369d3f9be2ca0a55045e11ff83a4
 SHA1 (patch-rsh-client.c) = 448811f5df402501c7070677fc8c2d1873764306
 SHA1 (patch-src_error.c) = 60aba581be95aebbb6fb16c888fd384d855fe56e
 SHA1 (patch-src_ignore.c) = 90ac25311c83bb5713b83b9cfb6b2c03790ee787

devel/scmcvs/patches/patch-m4_gettext.m4

@@ -0,0 +1,14 @@
+$NetBSD: patch-m4_gettext.m4,v 1.1 2021/01/20 03:09:03 brook Exp $
+
+mkinstalldirs is no longer used.
+
+--- m4/gettext.m4.orig	2005-04-25 20:28:35.000000000 +0000
++++ m4/gettext.m4
+@@ -359,7 +359,6 @@ dnl            USE_INCLUDED_LIBINTL, BUI
+ AC_DEFUN([AM_INTL_SUBDIR],
+ [
+   AC_REQUIRE([AC_PROG_INSTALL])dnl
+-  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
+   AC_REQUIRE([AC_PROG_CC])dnl
+   AC_REQUIRE([AC_CANONICAL_HOST])dnl
+   AC_REQUIRE([gt_GLIBC2])dnl

devel/scmcvs/patches/patch-m4_po.m4

@@ -0,0 +1,14 @@
+$NetBSD: patch-m4_po.m4,v 1.1 2021/01/20 03:09:03 brook Exp $
+
+mkinstalldirs is no longer used.
+
+--- m4/po.m4.orig	2005-03-23 00:04:29.000000000 +0000
++++ m4/po.m4
+@@ -24,7 +24,6 @@ AC_DEFUN([AM_PO_SUBDIRS],
+ [
+   AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+   AC_REQUIRE([AC_PROG_INSTALL])dnl
+-  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
+   AC_REQUIRE([AM_NLS])dnl
+ 
+   dnl Perform the following tests also if --disable-nls has been given,