linpuffs/puffs.c doesn't compile on amd64

[Kurt Schreiner <ks%ub.uni-mainz.de@localhost>]

Hi,

compiling current -current fails on amd in libpuffs:

    compile  libpuffs/puffs.o
cc1: warnings being treated as errors
/u/NetBSD/src/lib/libpuffs/puffs.c: In function 'puffs_daemon':
/u/NetBSD/src/lib/libpuffs/puffs.c:436: warning: format '%d' expects type 
'int', but argument 3 has type 'ssize_t'

*** Failed target:  puffs.o
*** Failed command: /u/NetBSD/arch/amd64/TOOLS/bin/x86_64--netbsd-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 -std=gnu99 
-Werror -fstack-protector -Wstack-protector --param ssp-buffer-size=1 
-D_FORTIFY_SOURCE=2 -nostdinc -isystem /u/NetBSD/arch/amd64/dest/usr/include -c 
/u/NetBSD/src/lib/libpuffs/puffs.c -o puffs.o
*** Error code 1

Stop.
nbmake: stopped in /u/NetBSD/src/lib/libpuffs

Kurt