crash build problem

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

Building -current/i386 stops in

#   compile  crash/db_trace.o
/usr/src/obj.i386/tooldir.NetBSD-5.99.22-i386/bin/i486--netbsdelf-gcc -O2 -pipe 
 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith 
-Wno-sign-compare -Wno-traditional -Wa,--fatal-warnings -Wreturn-type -Wswitch 
-Wshadow -Wcast-qual -Wwrite-strings -Wextra -Wno-unused-parameter 
-Wsign-compare -std=gnu99  -Werror "-march=pentium4"  -I/usr/src/usr.sbin/crash 
-I/usr/src/usr.sbin/crash/obj.i386 -I/usr/src/usr.sbin/crash/../../sys 
-fno-strict-aliasing -DDDB_VERBOSE_HELP -DDB_MAX_LINE=10000000 -D_KMEMUSER 
-nostdinc -isystem /usr/include   -c    
/usr/src/usr.sbin/crash/../../sys/arch/i386/i386/db_trace.c
cc1: warnings being treated as errors
/usr/src/usr.sbin/crash/../../sys/arch/i386/i386/db_trace.c: In function 
'db_stack_trace_print':
/usr/src/usr.sbin/crash/../../sys/arch/i386/i386/db_trace.c:456: warning: 
implicit declaration of function 'lwp_getpcb'
/usr/src/usr.sbin/crash/../../sys/arch/i386/i386/db_trace.c:456: warning: 
assignment makes pointer from integer without a cast
*** Error code 1


I tried

Index: db_trace.c
===================================================================
RCS file: /cvsroot/src/sys/arch/i386/i386/db_trace.c,v
retrieving revision 1.64
diff -u -r1.64 db_trace.c
--- db_trace.c  21 Nov 2009 03:11:00 -0000      1.64
+++ db_trace.c  21 Nov 2009 16:31:49 -0000
@@ -33,6 +33,7 @@
 #include <sys/systm.h>
 #include <sys/proc.h>
 #include <sys/intr.h> 
+#include <sys/lwp.h>
 #include <sys/cpu.h> 
 
 #include <machine/db_machdep.h>


as lwp_getpcb is defined there, but no change?! Now I'm mistified: explicit
addition of the header didn't seem to get rid of the "implicit declaration"
warning.

What have I missed?

Cheers,

Patrick