GCC optimization - Gentoo wikiThis guide provides an introduction to optimizing compiled code using safe, sane CFLAGS and CXXFLAGS. It also describes the theory behind optimizing in general. Default CFLAGS can be set in make.conf for Gentoo systems. CFLAGS can also be specified per-package. See also For more information see CFLAGS and CXXFLAGS in the Gentoo Handbook, and the safe CFLAGS article. See also the FAQ. Introduction
