app-office/lyx:monolithic - build with --monolithic, potentially speeding up compiles at the cost of heavy memory use.
dev-lang/gnu-smalltalk:jit - enable the experimental JIT compiler.
dev-lang/gnu-smalltalk:preempt - enable experimental pre-emptive concurrency.
dev-lisp/clisp:hyperspec - use dev-lisp/hyperspec for documentation instead of remote copy.
net-libs/webkitgtk:hildon - enable the Hildon UI extensions.
net-libs/webkitgtk:pango - use x11-libs/pango as the font backend instead of media-libs/freetype:2.
net-libs/webkitgtk:soup - use net-libs/libsoup:2.4 as the http backend instead of net-misc/curl.