# pylint: disable=E0602
Import("env")  # noqa

import os

# PlatformIO pre-build script: inject lwip_override include path so our
# lwipopts.h shadows the framework's version during lwIP compilation.
#
# The arduino-pico builder uses -iprefix + -iwithprefixbefore for includes,
# which takes priority over CPPPATH (-I). We must inject our path into the
# CCFLAGS BEFORE the -iprefix flag to ensure our lwipopts.h is found first.

lwip_dir = os.path.join(env["PROJECT_DIR"], "lwip_override")

if os.path.isdir(lwip_dir):
    # Insert -I<lwip_dir> at the beginning of CCFLAGS, before the framework's
    # -iprefix/-iwithprefixbefore flags which would otherwise take priority.
    env.Prepend(CCFLAGS=["-I", lwip_dir])