o("profiler", "build.profiler", "build the profiler runtime")
o("full-tools", None, "enable all tools")
o("lld", "rust.lld", "build lld")
+o("clang", "llvm.clang", "build clang")
o("missing-tools", "dist.missing-tools", "allow failures when building tools")
o("use-libcxx", "llvm.use-libcxx", "build LLVM with libc++")
o("control-flow-guard", "rust.control-flow-guard", "Enable Control Flow Guard")
o("optimize", "rust.optimize", "build optimized rust code")
o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
+o("llvm-plugins", "llvm.plugins", "build LLVM with plugin interface")
o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
+o("overflow-checks", "rust.overflow-checks", "build with overflow checks")
o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
v("debuginfo-level", "rust.debuginfo-level", "debuginfo level for Rust code")
v("debuginfo-level-rustc", "rust.debuginfo-level-rustc", "debuginfo level for the compiler")