Comment 19 for bug 21637

Sorry, but I not english speaker:
I solved in this way:
I didn't modificated neither Compose file neither gr file.
I had spanishlayout and installed greek polytonic, with the GUI of Gnome.
I saw the composer combination didn't work in greek
I correct /etc/environment with the line export GTK_IM_MODULE=xim
export QT_IM_MODULE=xim
I copy Composer en_US.UTF-8 to .XCompose (this archive seem to have the combination Composer of the predefinide language)
  cp /usr/share/X11/locale/en_US.UTF-8/Compose ~/.XCompose
and works.
The changes of gr file (U0313 and U0314) are not usefull, because the introduce a combinated acent, not show the real ancient greek character.
about the horrible definition of <dead_ogonek> and <dead_horn>, I tried to changed modificating (keysymdef.h). But the <dead_dasia> and <dead_psili> i think are wrong.
Please, If someboy understand me, rewrite this post correctly
Iaenus