ada@gentoo.org Useful only when building GCJ, this enables Abstract Window Toolkit (AWT) peer support on top of GTK+ Support the Cilk Plus language (C/C++ based languages for parallel programming) Enable fixed-point arithmetic support for MIPS targets in gcc (Warning: significantly increases compile time!) Build the GCC Go language frontend. Add support for the framework for loop optimizations based on a polyhedral intermediate representation Enable support for Intel Memory Protection Extensions (MPX) Build SSP support into a dedicated library rather than use the code in the C library (DO NOT ENABLE THIS IF YOU DON'T KNOW WHAT IT DOES) Disable PIE support (NOT FOR GENERAL USE) Disable SSP support (NOT FOR GENERAL USE) Build support for the Objective C code language Build support for the Objective C++ language Build support for the Objective C code language Garbage Collector Build GCC using Profile Guided Optimization (PGO) Run the testsuite and install the results (requires FEATURES=test) Build support for various sanitizer functions (ASAN/TSAN/etc...) Build packages with stack smashing protector on by default Build support for virtual table verification (a C++ hardening feature)