$dir_pw_third_party/nanopb/ module contains Nanopb, a tiny protobuf
library. It is used by pw_protobuf_compiler.
GN Build Support#
This module provides support to compile Nanopb with GN.
Follow the documentation on pw_protobuf_compiler for general help on how to use this.
In your toolchain configuration, you can use the following:
pw_third_party_nanopb_CONFIG = "$dir_pw_third_party/nanopb:disable_error_messages"
This will add
-DPB_NO_ERRMSG=1 to the build, which disables error messages
as strings and may save some code space at the expense of ease of debugging.