no-herd Enable support for the D programming language 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 building a compiler capable of building a kernel for SGI Indigo2 Impact R10000 (IP28) Enable building a compiler capable of building an experimental kernel for SGI O2 w/ R1x000 CPUs (IP32) Build the portable foreign function interface library Add support for link-time optimizations (unsupported, use at your own risk). Add support for mudflap, a pointer use checking library Allow for SLOTs to include minor version (3.3.4 instead of just 3.3) Enable n32 ABI support on mips Enable n64 ABI support on mips 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