kern/55923: amd64 build failure with KERNEL_DIR and MK*DEBUG*

[paul%whooppee.com@localhost]

	Note: There was a bad value `sw-bu' for the field `Class'.
	It was set to the default value of `sw-bug'.

>Number:         55923
>Category:       kern
>Synopsis:       amd64 build failure with KERNEL_DIR and various MK*DEBUG*
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jan 13 15:00:00 +0000 2021
>Originator:     Paul Goyette
>Release:        NetBSD 9.99.77
>Organization:
+--------------------+--------------------------+-----------------------+
| Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:     |
| (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost     |
| Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost   |
+--------------------+--------------------------+-----------------------+
>Environment:
	
	
System: NetBSD speedy.whooppee.com 9.99.77 NetBSD 9.99.77 (SPEEDY 2020-12-09 16:52:22 UTC) #0: Thu Dec 10 00:56:59 UTC 2020 paul%speedy.whooppee.com@localhost:/build/netbsd-local/obj/amd64/sys/arch/amd64/compile/SPEEDY amd64
Architecture: x86_64
Machine: amd64
>Description:
With the following invocation of build.sh

	./build.sh	-T /build/netbsd-local/tools/x86_64/amd64	\
			-D /build/netbsd-local/dest/amd64		\
			-O /build/netbsd-local/obj/amd64		\
			-R /build/netbsd-local/release			\
			-V RELEASEMACHINEDIR=amd64			\
			-V MKDEBUG=yes					\
			-V MKKDEBUG=yes					\
			-V MKDEBUGLIB=yes				\
			-V KERNEL_DIR=yes				\
			-V MKPAM=no					\
			-U						\
			-x						\
			-N2						\
			-m amd64					\
			-j1						\
		release

the following error occurs:

	...
	   ===============================
	checkflist ===> distrib/sets
	cd /build/netbsd-local/src_ro/distrib/sets &&  DESTDIR=/build/netbsd-local/dest/amd64  MACHINE=amd64  MACHINE_ARCH=x86_64  AWK=/build/netbsd-local/tools/x86_64/amd64/bin/nbawk  CKSUM=/build/netbsd-local/tools/x86_64/amd64/bin/nbcksum  DB=/build/netbsd-local/tools/x86_64/amd64/bin/nbdb  EGREP=/build/netbsd-local/tools/x86_64/amd64/bin/nbgrep\ -E  HOST_SH=/bin/sh  MAKE=/build/netbsd-local/tools/x86_64/amd64/bin/nbmake  MKTEMP=/build/netbsd-local/tools/x86_64/amd64/bin/nbmktemp MTREE=/build/netbsd-local/tools/x86_64/amd64/bin/nbmtree  PAX=/build/netbsd-local/tools/x86_64/amd64/bin/nbpax  COMPRESS_PROGRAM=/build/netbsd-local/tools/x86_64/amd64/bin/nbxz  GZIP=-n  XZ_OPT=-9  TAR_SUFF=tar.xz  PKG_CREATE=/build/netbsd-local/tools/x86_64/amd64/bin/nbpkg_create  SED=/build/netbsd-local/tools/x86_64/amd64/bin/nbsed  TSORT=/build/netbsd-local/tools/x86_64/amd64/bin/nbtsort\ -q /bin/sh /build/netbsd-local/src_ro/distrib/sets/checkflist  -L base,x  -M /build/netbsd-local/dest/amd64/METALO
 G.saniti
 sed
	=======  1 extra files in DESTDIR  =========
	Files in DESTDIR but missing from flist.
	File is obsolete or flist is out of date ?
	------------------------------------------
	./usr/libdata/debug/netbsd
	=========  end of 1 extra files  ===========
	*** [checkflist] Error code 1
	nbmake[2]: stopped in /build/netbsd-local/src_ro/distrib/sets
	...

The extra file is actually a directory.

It would appear that the directory should indeed exist (probably as a
result of MKKDEBUG=yes), but the sets lists do not provide for this
directory or its contents.

>How-To-Repeat:
	See above
>Fix:
	

>Unformatted: