ada@gentoo.org Build the ADA language (GNAT) frontend Used to bootstrap gnat-gpl Enable support for Intel Control Flow Enforcement Technology (CET) Enable support for the D programming language Build packages with stack clash protection on by default Request full relocation on start from ld.so by default 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 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) 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) Build support for the Rust language, installs gccrs. Build support for various sanitizer functions (ASAN/TSAN/etc...) enable systemtap static probe points Build packages with stack smashing protector on by default Build support for virtual table verification (a C++ hardening feature)