working on macOS build

Author: kdschlosser

builder/macOS.py

@@ -66,6 +66,7 @@ def build_commands(_, extra_args, script_dir, lv_cflags, board):
         f'LV_CFLAGS="{lv_cflags}"',
         f'LV_PORT=unix',
         f'USER_C_MODULES="{script_dir}/ext_mod"',
+        'CFLAGS=-Wno-unused-function'
     ])
     unix_cmd.extend(extra_args)