As found in the FAQ on http://x.mame.net/, mame can be compiled with icc and this may give a 10% boost. So why not use the already present +icc flag to use ICC ? Reproducible: Always Steps to Reproduce: 1. 2. 3. Expected Results: Use the Intel Compiler when ICC is in the USE flags
Added USE=icc support to the ebuild. Resync and remerge if you have USE=icc set. Thanks for the bug report.