sane-backends and hplip broken on -current

[Michael Butler]

Seems that both are trying to reference something that's been recently
removed :-(

 cc -c -O2 -pipe -march=prescott -fno-strict-aliasing -W -Wall
-DHAVE_CONFIG_H -I. -I. -I../include -I../include -I/usr/local/include
-D_REENTRANT -DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d
-DPATH_SANE_DATA_DIR=/usr/local/share
-DPATH_SANE_LOCK_DIR=/usr/local/var/lock/sane -DV_MAJOR=1 -DV_MINOR=0
-DBACKEND_NAME=umax_pp_low -DLIBDIR=/usr/local/lib/sane umax_pp_low.c
-fPIC -DPIC -o .libs/umax_pp_low.o
In file included from umax_pp_low.c:74:
/usr/include/dev/ppbus/ppbconf.h:202: error: expected
specifier-qualifier-list before 'driver_intr_t'
/usr/include/dev/ppbus/ppbconf.h:244: error: expected
specifier-qualifier-list before 'device_t'
umax_pp_low.c: In function 'sanei_umax_pp_initPort':
umax_pp_low.c:956: warning: unused variable 'rc'
umax_pp_low.c:956: warning: unused variable 'modes'
umax_pp_low.c:956: warning: unused variable 'mode'
umax_pp_low.c:953: warning: unused variable 'ectr'
gmake[1]: *** [umax_pp_low.lo] Error 1
gmake[1]: Leaving directory
`/usr/ports/graphics/sane-backends/work/sane-backends-1.0.19/backend'
gmake: *** [all-recursive] Error 1
*** Error code 2

Stop in /usr/ports/graphics/sane-backends.
*** Error code 1

Stop in /usr/ports/graphics/sane-backends.
*** Error code 1