- CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
- CXXFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
- LDFLAGS="$(EXTRA_LDFLAGS) "
+ CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" \
+ CXXFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" \
+ LDFLAGS="$(TARGET_LDFLAGS) $(EXTRA_LDFLAGS)"