7 The *fullbuild* mode of LLVM's libc is the mode in which it is to be used as
8 the only libc (as opposed to the :ref:`overlay_mode` in which it is used along
9 with the system libc.) In to order use it as the only libc, one will have to
10 build and install not only the static archives like ``libc.a`` from LLVM's libc,
11 but also the start-up objects like ``crt1.o`` and the public headers.
13 The full libc build can be of two types: