Packages describing “optimize” as local USE flag

Package“optimize” Flag Description
dev-lang/moarvmEnable optimization via CFLAGS
games-board/stockfishEnable upstream -O3 optimizations (default enabled)
net-misc/sksEnables bytecode optimization
sci-libs/opencascadeDon't clear allocated memory. Use optimized memory manager unlesstbb USE flag is set.

All packages providing a “optimize” USE flag (3)