toolchain Useful only when building GCJ, this enables Abstract Window Toolkit (AWT) peer support on top of GTK+ 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 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) 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 Run the testsuite and install the results (requires FEATURES=test) Build support various sanitizer functions (ASAN/TSAN/etc...) cpe:/a:gnu:gcc