On a RHEL3u3 system I get the following error when compiling xffm

mcs-manager.c: In function `connect_mcs':
mcs-manager.c:320: `gsettings' undeclared (first use in this function)
mcs-manager.c:320: (Each undeclared identifier is reported only once
mcs-manager.c:320: for each function it appears in.)

This seems to happen after the followning was commented out 
in the latest update.

    /*GtkSettings *gsettings = gtk_settings_get_default ();
    gchar *theme;*/