xsane fails to build while installing gimp

[nefar@…]

/usr/bin/gcc-4.0 -c -DHAVE_CONFIG_H -DLOCALEDIR=/opt/local/share/locale -DSANELOCALEDIR=/opt/local/share/locale -I. -I. -I../include -I../include  -I/usr/local/include -I/opt/local/include -no-cpp-precomp -D_GNU_SOURCE -I../intl        -DV_MAJOR=0 -DV_MINOR=996 -DSANE_V_MAJOR=1 -DPATH_XSANE_DOC_DIR=/opt/local/share/sane/xsane/doc -DPATH_SANE_DATA_DIR=/opt/local/share/sane -O2 -Wall -I/opt/local/include -I/opt/local/include/gimp-2.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/local/include/atk-1.0 -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/pixman-1 -I/opt/local/include/freetype2 -I/opt/local/include/libpng12    xsane-back-gtk.c
xsane-back-gtk.c: In function 'xsane_back_gtk_set_sensitivity':
xsane-back-gtk.c:2615: error: 'SANE_CAP_ALWAYS_SETTABLE' undeclared (first use in this function)
xsane-back-gtk.c:2615: error: (Each undeclared identifier is reported only once
xsane-back-gtk.c:2615: error: for each function it appears in.)
make[1]: *** [xsane-back-gtk.o] Error 1
make: *** [all-recursive] Error 1

Error: The following dependencies failed to build: xsane
Error: Status 1 encountered during processing.

[dbevans (David B. Evans)]

This is not a problem with gimp but with its dependency xsane.

[dbevans (David B. Evans)]

Fixed in r53630.