- Build Just-In-Time compiler variant with increased performance
- Enable Just-In-Time-Compiler. Has no effect except on AMD64 and Darwin.
- Enable PCRE JIT support
- Enable libgccjit so other applications can embed gcc for Just-In-Time compilation. This will slow down the compiler a bit as it forces all of the toolchain to be shared libs.
- Add support for the PCRE Just-in-Time optimisation, as enabled by dev-libs/libpcre with jit USE flag enabled. Might not be available on hardened systems.