From a03bd511b6b5331dfc1e71d9eb4809d5ab76d913 Mon Sep 17 00:00:00 2001
From: Masaru OKI <iMasaruOki@users.noreply.github.com>
Date: Wed, 12 Jul 2023 06:32:08 +0900
Subject: [PATCH] Pick dependency files in submodules. (#15142)

#### Why I did it

Failed to build sonic-dhcp6relay_1.0.0-0_amd64.deb

#### How I did it

src/dhcprelay has git submodule.
Dependency files by "git ls-files" are not picked files in submodules.
Add --recurse-submodules, work again.

#### How to verify it

make all
---
 rules/dhcprelay.dep | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rules/dhcprelay.dep b/rules/dhcprelay.dep
index 5f6d77a84fc3..552fda248014 100644
--- a/rules/dhcprelay.dep
+++ b/rules/dhcprelay.dep
@@ -2,7 +2,7 @@
 SPATH       := $($(SONIC_DHCPRELAY)_SRC_PATH)
 DEP_FILES   := $(SONIC_COMMON_FILES_LIST) rules/dhcprelay.mk rules/dhcprelay.dep   
 DEP_FILES   += $(SONIC_COMMON_BASE_FILES_LIST)
-SMDEP_FILES := $(addprefix $(SPATH)/,$(shell cd $(SPATH) && git ls-files))
+SMDEP_FILES := $(addprefix $(SPATH)/,$(shell cd $(SPATH) && git ls-files --recurse-submodules))
 
 $(SONIC_DHCPRELAY)_CACHE_MODE  := GIT_CONTENT_SHA 
 $(SONIC_DHCPRELAY)_DEP_FLAGS   := $(SONIC_COMMON_FLAGS_LIST)