[dpdk-stable] patch 'buildtools: fix icc build' has been queued to LTS release 16.11.4

[luca.boccassi@gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/12/17. So please
shout if anyone has objections.

Thanks.

Kind regards,
Luca Boccassi

---
>From b1076ba6bc492dedbc50d6033dd5bbd622a9225a Mon Sep 17 00:00:00 2001
From: Ferruh Yigit <ferruh.yigit@intel.com>
Date: Thu, 2 Nov 2017 00:25:10 +0000
Subject: [PATCH] buildtools: fix icc build
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit a462a6a9e7705e0a8e855ed42377041ff0efc908 ]

There are random build errors in test reports [1]. Build error
is not directly related to DPDK but observed during DPDK build.

When I get similar unexpected build errors in my system, found
out that /dev/null is invalid.

It seems ICC overwrites the /dev/null with "icc -o /dev/null" instead
of sending output to /dev/null. This is not always reproducible, so
hard to say what exactly is triggering the error.

I suspect test-report build errors can be because of the same reason,
and it is good to add a protection for this case.

Instead of sending output to /dev/null save it to the tmp folder and
remove it back when done.

[1]
http://dpdk.org/ml/archives/test-report/2017-November/034053.html
Failure #3

/usr/src/linux-headers-4.4.0-97-generic/include/linux/sysfs.h:517:37:
error: pointer targets in passing argument 2 of ‘kernfs_find_and_get’
differ in signedness [-Werror=pointer-sign]
  return kernfs_find_and_get(parent, name);

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 scripts/auto-config-h.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/auto-config-h.sh b/scripts/auto-config-h.sh
index 4356d7e38..cb8bce9b8 100755
--- a/scripts/auto-config-h.sh
+++ b/scripts/auto-config-h.sh
@@ -114,9 +114,9 @@ printf "\
 " "$include" "$code" > "${temp}" &&
 if ${CC} ${CPPFLAGS} ${EXTRA_CPPFLAGS} ${CFLAGS} ${EXTRA_CFLAGS} \
 	${AUTO_CONFIG_CFLAGS} \
-	-c -o /dev/null "${temp}" 1>&${out} 2>&${err}
+	-c -o ${temp}.o "${temp}" 1>&${out} 2>&${err}
 then
-	rm -f "${temp}"
+	rm -f "${temp}" "${temp}.o"
 	printf "\
 #ifndef %s
 #define %s 1
@@ -125,7 +125,7 @@ then
 " "${macro}" "${macro}" "${macro}" >> "${file}" &&
 	printf 'Defining %s.\n' "${macro}"
 else
-	rm -f "${temp}"
+	rm -f "${temp}" "${temp}.o"
 	printf "\
 /* %s is not defined. */
 
-- 
2.11.0