galeon compile error

[Boris Goldowsky <boris alum mit edu>]

Attempting to compile galeon via garnome 0.26.1, redhat 9 -- anyone know 
the solution to this compile error?

g++ -DHAVE_CONFIG_H -I. -I. -I.. -I../utils -I../utils -I../embed 
-I../bookmarks -I.. -I/opt/gnome/include/mozilla-1.5b/gtkembedmoz 
-I/opt/gnome/include/mozilla-1.5b/xpcom 
-I/opt/gnome/include/mozilla-1.5b/string 
-I/opt/gnome/include/mozilla-1.5b/nspr -I/opt/gnome/include/mozilla-1.5b 
-I/opt/gnome/include/mozilla-1.5b/appcomps 
-I/opt/gnome/include/mozilla-1.5b/caps 
-I/opt/gnome/include/mozilla-1.5b/content 
-I/opt/gnome/include/mozilla-1.5b/cookie 
-I/opt/gnome/include/mozilla-1.5b/docshell 
-I/opt/gnome/include/mozilla-1.5b/dom 
-I/opt/gnome/include/mozilla-1.5b/exthandler 
-I/opt/gnome/include/mozilla-1.5b/find 
-I/opt/gnome/include/mozilla-1.5b/gfx 
-I/opt/gnome/include/mozilla-1.5b/helperAppDlg 
-I/opt/gnome/include/mozilla-1.5b/history 
-I/opt/gnome/include/mozilla-1.5b/java 
-I/opt/gnome/include/mozilla-1.5b/js 
-I/opt/gnome/include/mozilla-1.5b/jsconsole 
-I/opt/gnome/include/mozilla-1.5b/layout 
-I/opt/gnome/include/mozilla-1.5b/mimetype 
-I/opt/gnome/include/mozilla-1.5b/mozxfer 
-I/opt/gnome/include/mozilla-1.5b/necko 
-I/opt/gnome/include/mozilla-1.5b/necko2 
-I/opt/gnome/include/mozilla-1.5b/nkcache 
-I/opt/gnome/include/mozilla-1.5b/oji 
-I/opt/gnome/include/mozilla-1.5b/pref 
-I/opt/gnome/include/mozilla-1.5b/progressDlg 
-I/opt/gnome/include/mozilla-1.5b/sidebar 
-I/opt/gnome/include/mozilla-1.5b/shistory 
-I/opt/gnome/include/mozilla-1.5b/typeaheadfind 
-I/opt/gnome/include/mozilla-1.5b/uconv 
-I/opt/gnome/include/mozilla-1.5b/uriloader 
-I/opt/gnome/include/mozilla-1.5b/unicharutil 
-I/opt/gnome/include/mozilla-1.5b/wallet 
-I/opt/gnome/include/mozilla-1.5b/webbrowserpersist 
-I/opt/gnome/include/mozilla-1.5b/webbrwsr 
-I/opt/gnome/include/mozilla-1.5b/webshell 
-I/opt/gnome/include/mozilla-1.5b/widget 
-I/opt/gnome/include/mozilla-1.5b/windowwatcher 
-I/opt/gnome/include/mozilla-1.5b/xpconnect -DORBIT2=1 -pthread 
-I/opt/gnome/include/gtk-2.0 -I/opt/gnome/lib/gtk-2.0/include 
-I/opt/gnome/include/atk-1.0 -I/opt/gnome/include/pango-1.0 
-I/opt/gnome/include -I/opt/gnome/include/freetype2 -I/usr/X11R6/include 
-I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include 
-I/opt/gnome/include/libxml2 -I/opt/gnome/include/libgnomeui-2.0 
-I/opt/gnome/include/libgnome-2.0 
-I/opt/gnome/include/libgnomecanvas-2.0 -I/opt/gnome/include/libart-2.0 
-I/opt/gnome/include/gconf/2 -I/opt/gnome/include/libbonoboui-2.0 
-I/opt/gnome/include/orbit-2.0 -I/opt/gnome/include/libbonobo-2.0 
-I/opt/gnome/include/gnome-vfs-2.0 
-I/opt/gnome/lib/gnome-vfs-2.0/include 
-I/opt/gnome/include/bonobo-activation-2.0 
-I/opt/gnome/include/libglade-2.0 
-I/opt/gnome/include/gnome-vfs-module-2.0 -I/opt/gnome/include/eel-2 
-I/opt/gnome/include/gail-1.0 -DLIB_DIR=\"/opt/gnome/lib/galeon\" 
-DG_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGTK_DISABLE_DEPRECATED 
-DGDK_PIXBUF_DISABLE_DEPRECATED -DGNOME_DISABLE_DEPRECATED 
-DSHARE_DIR=\"/opt/gnome/share/galeon\" -D_GNU_SOURCE=1 -include 
/opt/gnome/include/mozilla-1.5b/mozilla-config.h -I/opt/gnome/include 
-I/usr/X11R6/include -fno-rtti -g -I/opt/gnome/include 
-I/usr/X11R6/include -L/opt/gnome/lib -L/usr/X11R6/lib -O2 -pipe -Wall 
-Wmissing-prototypes -Wsign-compare -Wno-deprecated -fshort-wchar -MT 
ContentHandler.lo -MD -MP -MF .deps/ContentHandler.Tpo -c 
ContentHandler.cpp  -fPIC -DPIC -o ContentHandler.lo
ContentHandler.cpp:297: prototype for `nsresult
  GContentHandler::PromptForSaveToFile(nsISupports*, const PRUnichar*, 
const
  PRUnichar*, nsILocalFile**)' does not match any in class 
`GContentHandler'
ContentHandler.h:59: candidate is: virtual nsresult
  GContentHandler::PromptForSaveToFile(nsIHelperAppLauncher*, nsISupports*,
  const PRUnichar*, const PRUnichar*, nsILocalFile**)
make[3]: *** [ContentHandler.lo] Error 1