might fix macOS build

Author: kdschlosser

builder/macOS.py

@@ -69,7 +69,11 @@ def build_commands(_, extra_args, script_dir, lv_cflags, board):
         unix_cmd.append(f'VARIANT={board}')
 
     if lv_cflags:
-        unix_cmd.append(f'LV_CFLAGS="{lv_cflags}"')
+        lv_cflags += ' -Wno-sign-compare'
+    else:
+        lv_cflags = '-Wno-sign-compare'
+
+    unix_cmd.append(f'LV_CFLAGS="{lv_cflags}"')
 
     unix_cmd.extend([
         'LV_PORT=unix',

ext_mod/lvgl/micropython.mk

@@ -24,7 +24,6 @@ ifneq (,$(findstring -Wno-missing-field-initializers, $(CFLAGS_USERMOD)))
     CFLAGS_USERMOD += -Wno-missing-field-initializers
 endif
 
-CFLAGS_USERMOD += -Wno-sign-compare
 
 ALL_LVGL_SRC = $(shell find $(LVGL_DIR) -type f -name '*.h') $(LVGL_BINDING_DIR)/lib/lv_conf.h