From 06798a2b352f1c261637c7153519bcc4ab992bc9 Mon Sep 17 00:00:00 2001
From: Anton Maklakov <anton@espressif.com>
Date: Tue, 11 Apr 2017 18:04:18 +0800
Subject: [PATCH] build: Fix for old version of git (< 1.8.5)

---
 make/project.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/make/project.mk b/make/project.mk
index 4a2c39aa931..fd85ef4e554 100644
--- a/make/project.mk
+++ b/make/project.mk
@@ -186,7 +186,7 @@ endif
 	@echo $(ESPTOOLPY_WRITE_FLASH) $(ESPTOOL_ALL_FLASH_ARGS)
 
 
-IDF_VER := $(shell git -C $(IDF_PATH) describe --always --tags --dirty)
+IDF_VER := $(shell cd ${IDF_PATH} && git describe --always --tags --dirty)
 
 # Set default LDFLAGS