Enable support for mining with Icarus FPGAs

Packages describing “icarus” as local USE flag

Package “icarus” Flag Description
net-misc/cgminer Enable support for mining with Icarus FPGAs
net-misc/bfgminer Enable support for mining with Icarus-compatible devices (including Block Erupter Sapphire ASICs)

All packages providing a “icarus” USE flag (2)