Problem compiling with RedHat 7.0

[Franco Spinelli <fraspin@tin.it>]

Compiling drgeo 0.5.10 under RedHat 7.0 (glibc 2.2 and c++ 2.96
I get this message:

c++ -DHAVE_CONFIG_H -I. -I. -I.. -DGNOMELOCALEDIR=\""/usr/local/share/locale"\"
        	-DLOCALEDIR=\"/usr/local/share/locale\"
			
-I/usr/local/include 					-I/usr/include
-DNEED_GNOMESUPPORT_H -I/usr/lib/gnome-libs/include -I/usr/lib/glib/include
-I/usr/X11R6/include					-I/usr/include/gnome-xml		
        	  -I/usr/lib/glib/include -I/usr/X11R6/include  -g -O2
-DGNOME_SUPPORT -DLIBRARY_DIR=\""/usr/local/share/drgeo/"\"
-DDRGENIUS_GLADEDIR=\""/usr/local/share/drgenius/glade"\" -c drgeo_menu.cc
drgeo_menu.cc:100: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
drgeo_menu.cc:142: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
drgeo_menu.cc:185: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
drgeo_menu.cc:206: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
drgeo_menu.cc:220: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
drgeo_menu.cc:274: cannot convert `void (*) (GtkWidget *, void *)' to 
`void *' in initialization
make[3]: *** [drgeo_menu.o] Error 1
make[3]: Leaving directory `/opt/src/aggiunte/drgenius-0.5.10/drgeo'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/opt/src/aggiunte/drgenius-0.5.10/drgeo'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/src/aggiunte/drgenius-0.5.10'
make: *** [all-recursive-am] Error 2

There is a change in c++ standard ???

Regards 

Franco Spinelli