[Uim] gtk-immodules problem

[n g]

refer to http://www.gtk.org/api/2.6/gtk/gtk-running.html

enviroment variable GTK_IM_MODULE_FILE is very handy,
in case of uim installed into different prefix than gtk did,

for example, gtk install at prefix /usr/local
while uim installed at prefix /opt/uim,

make install should generate the file
/opt/uim/etc/gtk-2.0/gtk.immodule by
GTK_PATH=/opt/uim/lib/gtk-2.0 gtk-query-immodule >
/opt/uim/etc/gtk-2.0/gtk.immodule

then in desktop enviroment, for example, gnome, just set the enviroment
GTK_IM_MODULE_FILE=/opt/uim/etc/gtk-2.0/gtk.immodule

currently(uim-1.4.0) wont generate gtk.immodule, if she didn't find a
previous one in that place,
this prevent uim to function normally,
but require uim to be installed at the same prefix as gtk.