Custom kernel builds failing w/undeclared identifiers?

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

Following changes to -current in the last few days, some(?) of my custom
kernels have been failing to build with undeclared identifiers.  E.g.:

on sparc:
[...]
--- ioconf.o ---
ioconf.c:331:55: error: 'pspec5' undeclared here (not in a function)
     { "dma",  "dma_sbus",  1, STAR, loc+ 14,      0, &pspec5 },

*** [ioconf.o] Error code 1

nbmake: stopped in /r1/build/current/obj/sparc/sys/arch/sparc/compile/DAVID
1 error


on amd64:
[...]
--- ioconf.o ---
ioconf.c:1041:54: error: 'pspec28' undeclared here (not in a function)
     { "tpm",  "tpm_isa",  0, STAR, loc+  0,      0, &pspec28 },
                                                      ^
ioconf.c:1041:5: error: missing initializer for field 'cf_pspec' of 'struct cfdata' [-Werror=missing-field-initializers]
     { "tpm",  "tpm_isa",  0, STAR, loc+  0,      0, &pspec28 },
     ^
In file included from ioconf.c:10:0:
/x/current/src/sys/sys/device.h:275:25: note: 'cf_pspec' declared here
  const struct cfparent *cf_pspec;/* parent specification */
                         ^
cc1: all warnings being treated as errors
*** [ioconf.o] Error code 1

nbmake: stopped in /r0/build/current/obj/amd64/sys/arch/amd64/compile/PLEX760


The above were observed during an update build.  The sparc build had
previously completed a successful non-update build, albeit with already-
populated OBJDIR.

Removing the OBJDIR/.../compile/FOO directory had no effect, indicating
something in my kernel config is now out of order that had not been so
before.

In the sparc case, I've been using essentially the same configs since
around the netbsd-5 era--that arch really hasn't changed in a long time.

What do the above errors suggest I look for?  I'm pretty sure all the
attachments were in order.

Thanks.

-- 
|/"\ John D. Baker, KN5UKS               NetBSD     Darwin/MacOS X
|\ / jdbaker[snail]mylinuxisp[flyspeck]com    OpenBSD            FreeBSD
| X  No HTML/proprietary data in email.   BSD just sits there and works!
|/ \ GPGkeyID:  D703 4A7E 479F 63F8 D3F4  BD99 9572 8F23 E4AD 1645