FYI:

#   compile  rumpkern/rump.o
/a/tools/sparc64/bin/sparc64--netbsd-gcc -g -O0 -ffreestanding -Wno-pointer-sign -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare -Wno-traditional -Wreturn-type -Wswi
tch -Wshadow -Wcast-qual -Wwrite-strings -Wextra -Wno-unused-parameter -std=gnu99  -Werror   -I/usr/src/sys/rump/include  -I/usr/src/sys/rump/librump/rumpkern -I. -D_KERNEL -DDIAGNOSTIC -I/usr/src/c
ommon/include -D_RUMPKERNEL -DDEBUG -nostdinc -I/usr/src/sys -I/usr/src/sys -I/usr/src/common/include        -I/usr/src/sys/rump/librump/rumpuser            -I/usr/src/sys/rump/librump/rumpkern/opt 
-DMAXUSERS=32   -nostdinc -isystem /a/dst/sparc64/usr/include -c    /usr/src/sys/rump/librump/rumpkern/rump.c -o rump.o
cc1: warnings being treated as errors
/usr/src/sys/rump/librump/rumpkern/rump.c: In function 'rump_mnt_init':
/usr/src/sys/rump/librump/rumpkern/rump.c:153: warning: passing argument 1 of 'lockinit' from incompatible pointer type
[...]
*** Failed target:  dependall
*** Failed command: cd /usr/src/sys/rump/librump/rumpkern; /a/tools/sparc64/bin/nbmake realall
*** Error code 1

-- 
bashian roulette:
$ ((RANDOM%6)) || rm -rf ~