CC="clang"
CXX="clang++"
CFLAGS="${CFLAGS} -flto=thin"
CXXFLAGS="${CXXFLAGS} -flto=thin"
LDFLAGS="-Wl,-O2 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind"
AR="llvm-ar"
NM="llvm-nm"
RANLIB="llvm-ranlib"