From eb3eaa38913933e3fcee9e3017ac1fca72411277 Mon Sep 17 00:00:00 2001
From: gaoyang3513 <gaoyang3513@163.com>
Date: Sun, 29 Oct 2023 15:01:56 +0800
Subject: [PATCH] =?UTF-8?q?[=E4=BF=AE=E6=94=B9]=20export=E5=AF=BC=E5=87=BA?=
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---
 Makefile      | 11 +++++------
 dir1/Makefile |  6 ++++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index b53e7e6..516a9ba 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,8 @@
 
+var_a = a
 
-makedir := $(abspath $(lastword $(MAKEFILE_LIST)))
-$(warning makedir1=$(makedir))
-
-include dir1/Makefile
-makedir := $(abspath $(lastword $(MAKEFILE_LIST)))
-$(warning makedir3=$(makedir))
+export var_a 
 
+all:
+	make -C dir1
+	echo "Get var_a=$(var_a)"
diff --git a/dir1/Makefile b/dir1/Makefile
index 0da385b..63c16f1 100644
--- a/dir1/Makefile
+++ b/dir1/Makefile
@@ -1,6 +1,8 @@
 
 
-makedir := $(abspath $(lastword $(MAKEFILE_LIST)))
-$(warning makedir2=$(makedir))
+$(warning var_a=$(var_a))
+var_a = b
 
+all:
+	echo "set var_a=b"