kernel compile error in wheezy

[Frank Miles <fpm@u.washington.edu>]

I just tried compiling the kernel for My 'wheezy' system (2.6.39) [amd64].
As I've done many times - using
	make-kpkg --revision N kernel_image
But with the recent linux-source update - shortly after starting I get:

	  CC      arch/x86/kernel/asm-offsets.s
	In file included from /usr/src/linux-source-2.6.39/arch/x86/include/asm/percpu.h:44:0,
                 	from /usr/src/linux-source-2.6.39/arch/x86/include/asm/current.h:5,
                 	from /usr/src/linux-source-2.6.39/arch/x86/include/asm/processor.h:15,
                 	from /usr/src/linux-source-2.6.39/arch/x86/include/asm/atomic.h:6,
                 	from ./include/linux/crypto.h:20,
                 	from arch/x86/kernel/asm-offsets.c:8:
	./include/linux/kernel.h:12:20: fatal error: stdarg.h: No such file or directory
	compilation terminated.
	make[3]: *** [arch/x86/kernel/asm-offsets.s] Error 1
	make[2]: *** [prepare0] Error 2

There don't seem to be any current bugs like this.  A previous 2.6.39
compiler was uneventful.

Any ideas would be appreciated!

   -Frank