From d199eb295c6c591d340c8153e781fede5cc07418 Mon Sep 17 00:00:00 2001
From: Daniel Verkamp <daniel.verkamp@intel.com>
Date: Thu, 1 Jun 2017 17:51:29 -0700
Subject: [PATCH] configure: check for DPDK submodule existence

If the user doesn't specify --with-dpdk and the dpdk submodule is not
checked out, print a message to help identify the problem.

Change-Id: Ic3aafe3ba7e8dea66ce14ba4677f56824eed61bb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/363472
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
---
 configure | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 1b0aad8b3..00274f1b3 100755
--- a/configure
+++ b/configure
@@ -127,7 +127,14 @@ done
 
 if [ -z "$CONFIG_ENV" ]; then
 	if [ -z "$CONFIG_DPDK_DIR" ]; then
-		CONFIG_DPDK_DIR=$(readlink -f $(dirname $0))/dpdk/build
+		rootdir=$(readlink -f $(dirname $0))
+		if [ ! -f "$rootdir"/dpdk/config/common_spdk ]; then
+			echo "DPDK not found; please specify --with-dpdk=<path> or run:"
+			echo
+			echo "  git submodule update --init"
+			exit 1
+		fi
+		CONFIG_DPDK_DIR="$rootdir"/dpdk/build
 	fi
 fi