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From: Thomas Monjalon <thomas@monjalon.net>
To: bruce.richardson@intel.com, Matan Azrad <matan@mellanox.com>,
	Shahaf Shuler <shahafs@mellanox.com>,
	Yongseok Koh <yskoh@mellanox.com>,
	Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Cc: dev@dpdk.org, adrien.mazarguil@6wind.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH 4/6] net/mlx: fix build with make and recent gcc
Date: Tue, 13 Aug 2019 01:03:56 +0200
Message-ID: <20190812230358.988-5-thomas@monjalon.net> (raw)
In-Reply-To: <20190812230358.988-1-thomas@monjalon.net>

With VERBOSE=1, this error was seen in debug mode with gcc 9.1:

In file included from /tmp/dpdk.auto-config-h.sh.c.w0VWMi:1:
In file included from rdma-core/build/include/infiniband/mlx5dv.h:47:
In file included from rdma-core/build/include/infiniband/verbs.h:46:
In file included from rdma-core/build/include/infiniband/verbs_api.h:66:
In file included from rdma-core/build/include/infiniband/ib_user_ioctl_verbs.h:38:
include/rdma/ib_user_verbs.h:161:28: fatal error:
zero size arrays are an extension [-Wzero-length-array]
__aligned_u64 driver_data0;
^
1 error generated.

As a result, buildtools/auto-config-h.sh was not generating
a correct autoconf file, so the compilation was generating such error:

fatal error: redefinition of 'mlx5_ib_uapi_flow_action_packet_reformat_type'

It is fixed by disabling -pedantic option when calling auto-config-h.sh
from the makefile-based system.

Cc: adrien.mazarguil@6wind.com
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 drivers/net/mlx4/Makefile | 3 ++-
 drivers/net/mlx5/Makefile | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx4/Makefile b/drivers/net/mlx4/Makefile
index 8126b0dfc..25d7c7555 100644
--- a/drivers/net/mlx4/Makefile
+++ b/drivers/net/mlx4/Makefile
@@ -68,6 +68,7 @@ endif
 # User-defined CFLAGS.
 ifeq ($(CONFIG_RTE_LIBRTE_MLX4_DEBUG),y)
 CFLAGS += -pedantic -UNDEBUG -DPEDANTIC
+AUTO_CONFIG_CFLAGS += -Wno-pedantic
 else
 CFLAGS += -DNDEBUG -UPEDANTIC
 endif
@@ -77,7 +78,7 @@ include $(RTE_SDK)/mk/rte.lib.mk
 # Generate and clean-up mlx4_autoconf.h.
 
 export CC CFLAGS CPPFLAGS EXTRA_CFLAGS EXTRA_CPPFLAGS
-export AUTO_CONFIG_CFLAGS = -Wno-error
+export AUTO_CONFIG_CFLAGS += -Wno-error
 
 ifndef V
 AUTOCONF_OUTPUT := >/dev/null
diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index dbb2a4e80..299cf3afe 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -83,6 +83,7 @@ endif
 # User-defined CFLAGS.
 ifeq ($(CONFIG_RTE_LIBRTE_MLX5_DEBUG),y)
 CFLAGS += -pedantic -UNDEBUG -DPEDANTIC
+AUTO_CONFIG_CFLAGS += -Wno-pedantic
 else
 CFLAGS += -DNDEBUG -UPEDANTIC
 endif
@@ -92,7 +93,7 @@ include $(RTE_SDK)/mk/rte.lib.mk
 # Generate and clean-up mlx5_autoconf.h.
 
 export CC CFLAGS CPPFLAGS EXTRA_CFLAGS EXTRA_CPPFLAGS
-export AUTO_CONFIG_CFLAGS = -Wno-error
+export AUTO_CONFIG_CFLAGS += -Wno-error
 
 ifndef V
 AUTOCONF_OUTPUT := >/dev/null
-- 
2.22.0


  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-12 23:03 [dpdk-dev] [PATCH 0/6] build system improvements Thomas Monjalon
2019-08-12 23:03 ` [dpdk-dev] [PATCH 1/6] build: remove redundant libs from pkgconfig Thomas Monjalon
2019-08-13  9:37   ` Luca Boccassi
2019-08-12 23:03 ` [dpdk-dev] [PATCH 2/6] drivers: add some reasons for meson disabling Thomas Monjalon
2019-08-13  9:38   ` Luca Boccassi
2019-08-12 23:03 ` [dpdk-dev] [PATCH 3/6] net/mlx: fix meson build with custom dependency path Thomas Monjalon
2019-08-13  9:38   ` Luca Boccassi
2019-08-14  8:39   ` Matan Azrad
2019-08-12 23:03 ` Thomas Monjalon [this message]
2019-08-13  9:39   ` [dpdk-dev] [dpdk-stable] [PATCH 4/6] net/mlx: fix build with make and recent gcc Luca Boccassi
2019-08-14 10:19   ` [dpdk-dev] " Matan Azrad
2019-08-12 23:03 ` [dpdk-dev] [PATCH 5/6] devtools: test compiler availability only once Thomas Monjalon
2019-08-13  9:40   ` Luca Boccassi
2019-08-12 23:03 ` [dpdk-dev] [PATCH 6/6] devtools: load target-specific compilation environment Thomas Monjalon
2019-08-13  9:41   ` Luca Boccassi
2019-09-12 16:23 ` [dpdk-dev] [PATCH 0/6] build system improvements Thomas Monjalon

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