latest xscreensaver-gnome-hacks build fails

When building from ports:

gmake[1]: Entering directory
`/usr/ports/x11/xscreensaver-gnome-hacks/work/xscreensaver-5.08/hacks/glx'
cc -pedantic -Wall -Wstrict-prototypes -Wnested-externs
-Wmissing-prototypes -Wno-overlength-strings -Wdeclaration-after
-statement -std=c89 -U__STRICT_ANSI__ -c -I. -I. -I./../../utils
-I./.. -I../..  -D_THREAD_SAFE -I/usr/local/include/gtk
-2.0 -I/usr/local/lib/gtk-2.0/include -I/usr/local/include/atk-1.0
-I/usr/local/include/cairo -I/usr/local/include/pango
-1.0 -I/usr/local/include -I/usr/local/include/glib-2.0
-I/usr/local/lib/glib-2.0/include -I/usr/local/include/pixman-1
-I/usr/local/include/freetype2 -I/usr/local/include/libxml2
-I/usr/local/include/libglade-2.0   -I/usr/local/include/gtk
-2.0 -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include
-I/usr/local/include   -DSTANDALONE -DUSE_GL -DHAVE
_CONFIG_H -O -pipe -march=prescott -I/usr/local/include
-I/usr/local/include klein.c
In file included from ./../xlockmore.h:39,
                 from klein.c:18:
/usr/local/include/GL/glu.h:287: warning: function declaration isn't a prototype
klein.c: In function 'draw_klein':
klein.c:399: internal compiler error: in assign_386_stack_local, at
config/i386/i386.c:13484
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
gmake[1]: *** [klein.o] Error 1
gmake[1]: Leaving directory
`/usr/ports/x11/xscreensaver-gnome-hacks/work/xscreensaver-5.08/hacks/glx'
gmake: *** [all] Error 5
*** Error code 1

Stop in /usr/ports/x11/xscreensaver-gnome-hacks.
*** Error code 1

Stop in /usr/ports/x11/xscreensaver-gnome-hacks.
*** Error code 1

Stop in /usr/ports/x11/gnome-screensaver.
*** Error code 1

Stop in /usr/ports/x11/gnome-screensaver.
*** Error code 1

Stop in /usr/ports/x11/gnome2-lite.
*** Error code 1

Stop in /usr/ports/x11/gnome2-lite.