..  Copyright (c) 2014-present PlatformIO <contact@platformio.org>
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
       http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

``build``
---------

*Optional* | Type: ``Object``

Specify advanced settings, options and flags for the build system. Possible
options:

.. toctree::
    :maxdepth: 2

    flags
    unflags
    includedir
    srcdir
    srcfilter
    extrascript
    libarchive
    libldfmode
    libcompatmode
    builder