From 26731440ee60ff4a8368273120d3d652651f4443 Mon Sep 17 00:00:00 2001
From: Jim Harris <james.r.harris@intel.com>
Date: Mon, 12 Feb 2018 08:55:15 -0700
Subject: [PATCH] build: use conditional CC/CXX assignment for generated
 mk/cc.mk

This ensures that if user specifies an alternate CC/CXX after
cc.mk was already generated, that the build will pick up the
difference, regenerate mk/cc.mk and trigger a rebuild.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I90c38c7b8eb09a5575c429769ba57f4e167fa4b0

Reviewed-on: https://review.gerrithub.io/399431
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
---
 scripts/detect_cc.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/detect_cc.sh b/scripts/detect_cc.sh
index 1c2742a0f..936520e36 100755
--- a/scripts/detect_cc.sh
+++ b/scripts/detect_cc.sh
@@ -74,7 +74,7 @@ if [ "$LTO" = "y" ]; then
 	fi
 fi
 
-echo "CC=$CC"
-echo "CXX=$CXX"
+echo "CC?=$CC"
+echo "CXX?=$CXX"
 echo "CCAR=$CCAR"
 echo "CC_TYPE=$CC_TYPE"