make delete-old oddity on stable/10

[Kimmo Paasiala]

On Tue, Oct 29, 2013 at 11:24 AM, Kimmo Paasiala <kpaasial at gmail.com> wrote:
> freebsd10 /usr/src # uname -a
>
> FreeBSD freebsd10.rdnzl.info 10.0-BETA2 FreeBSD 10.0-BETA2 #0 r257267:
> Mon Oct 28 22:42:23 EET 2013
> kimmo at freebsd10.rdnzl.info:/usr/obj/usr/src/sys/GENERIC  i386
>
> freebsd10 /usr/src # make delete-old
>
>>>> Removing old files (only deletes safe to delete libs)
>
> awk: can't open file /usr/obj/usr/src/sys/sys/param.h
>
>  source line number 1
>
> make[2]: "/usr/src/Makefile.inc1" line 135: warning: "awk
> '/^#define[[:space:]]*__FreeBSD_version/ { print $3 }'
> /usr/obj/usr/src/sys/sys/param.h" returned non-zero status
>
>>>> Old files removed
>
>>>> Removing old directories
>
> awk: can't open file /usr/obj/usr/src/sys/sys/param.h
>
>  source line number 1
>
> make[2]: "/usr/src/Makefile.inc1" line 135: warning: "awk
> '/^#define[[:space:]]*__FreeBSD_version/ { print $3 }'
> /usr/obj/usr/src/sys/sys/param.h" returned non-zero status
>
>>>> Old directories removed
>
> To remove old libraries run 'make delete-old-libs'.
>
> freebsd10 /usr/src #
>
>
> My src.conf and make.conf are both empty.
>
> -Kimmo

No one else noticed this? I can't be the only one doing 'make
delete-old delete-old-libs' on every update.

Bit more information: I have tried cleaning /usr/obj before doing a
new cycle of 'make build world build kernel', no difference.

-Kimmo

-Kimmo