linux-kernel - Re: [PATCH 1/2] virtio tools: strip bad include-path from Makefile

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Date:	Wed, 10 Jul 2013 15:15:21 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Ramkumar Ramachandra <artagnon@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [PATCH 1/2] virtio tools: strip bad include-path from Makefile

On Wed, Jul 10, 2013 at 04:26:59PM +0530, Ramkumar Ramachandra wrote:
> CFLAGS contains a mysterious "-I ../../usr/include", but no such path
> exists in the linux tree.  The line was originally introduced in
> 4e53f78e (tools/virtio: virtio_test tool, 2010-11-29), but no such path
> existed in the tree even then.
> 
> Cc: Michael S. Tsirkin <mst@...hat.com>
> Cc: Rusty Russell <rusty@...tcorp.com.au>
> Signed-off-by: Ramkumar Ramachandra <artagnon@...il.com>

NACK

It exists if you do make headers_install.
So it's handy for old distos where userspace headers don't
exist or are out of date.

> ---
>  tools/virtio/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile
> index 3187c62..53623c6 100644
> --- a/tools/virtio/Makefile
> +++ b/tools/virtio/Makefile
> @@ -3,7 +3,7 @@ test: virtio_test vringh_test
>  virtio_test: virtio_ring.o virtio_test.o
>  vringh_test: vringh_test.o vringh.o virtio_ring.o
>  
> -CFLAGS += -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE
> +CFLAGS += -g -O2 -Wall -I. -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE
>  vpath %.c ../../drivers/virtio ../../drivers/vhost
>  mod:
>  	${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test
> -- 
> 1.8.3.2.736.g869de25
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