lzo:host: build static
gettext:host: disable curses, use included libxml
expat:host: build static
libxml2:host: build static
gcc: build without libgomp/libitm
flex:host: build static
libtool:host: build static libltdl
util-linux:host: build static
ncurses: clean up

- disable terminfo database. fallbacks are enough.
- remove ncurses:host
Python:host: clean up expat

system-expat not really needed here.
expat: remove expat:host
elfutils: update to elfutils-0.159. disable nls
Mesa: dont depend on libxml2:host. cleanup --with-expat