gnat-gpl

USE flags

• ada - Build the ADA language (GNAT) frontend
• bootstrap - Used to bootstrap gnat-gpl
• cet - Enable support for Intel Control Flow Enforcement Technology (CET)
• cxx - Build support for C++ (bindings, extra libraries, code generation, ...)
• d - Enable support for the D programming language
• debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
• default-stack-clash-protection - Build packages with stack clash protection on by default
• default-znow - Request full relocation on start from ld.so by default
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• fixed-point - Enable fixed-point arithmetic support for MIPS targets in gcc (Warning: significantly increases compile time!)
• fortran - Add support for fortran
• go - Build the GCC Go language frontend.
• graphite - Add support for the framework for loop optimizations based on a polyhedral intermediate representation
• hardened - Activate default security enhancements for toolchain (gcc, glibc, binutils)
• jit - Enable just-in-time compilation for improved performance. May prevent use of some PaX memory protection features in Gentoo Hardened.
• libssp - 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)
• lto - Build using Link Time Optimizations (LTO)
• modula2
• multilib - On 64bit systems, if you want to be able to compile 32bit and 64bit binaries
• nls - Add Native Language Support (using gettext - GNU locale utilities)
• nptl - Enable support for Native POSIX Threads Library, the new threading module (requires linux-2.6 or better usually)
• objc - Build support for the Objective C code language
• objc++ - Build support for the Objective C++ language
• objc-gc - Build support for the Objective C code language Garbage Collector
• openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
• pch - Enable precompiled header support for faster compilation at the expense of disk space and memory (>=sys-devel/gcc-3.4 only)
• pgo - Build GCC using Profile Guided Optimization (PGO)
• pie - Build programs as Position Independent Executables (a security hardening technique)
• rust - Build support for the Rust language, installs gccrs.
• sanitize - Build support for various sanitizer functions (ASAN/TSAN/etc...)
• ssp - Build packages with stack smashing protector on by default
• systemtap - enable systemtap static probe points
• test - Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)
• vanilla - Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically
• vtv - Build support for virtual table verification (a C++ hardening feature)
• zstd - Enable support for ZSTD compression