linux-kernel - Re: [PATCH] kbuild: remove duplicate -I flag in addtree

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Date:	Mon, 27 Sep 2010 16:24:11 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	matt mooney <mfm@...eddisk.com>
Cc:	Michal Marek <mmarek@...e.cz>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] kbuild: remove duplicate -I flag in addtree

On Sun, Sep 26, 2010 at 07:11:12PM -0700, matt mooney wrote:
>When O= is used, any -I flag given that is not an absolute path gets
>duplicated. The $(1) appended to the conditional clause covers the
>absolute case, but due to being outside of the conditional statement
>it gets added everytime.
>
>Signed-off-by: matt mooney <mfm@...eddisk.com>

Acked-by: WANG Cong <xiyou.wangcong@...il.com>

>---
> scripts/Kbuild.include |    2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
>index ed2773e..08c74ed 100644
>--- a/scripts/Kbuild.include
>+++ b/scripts/Kbuild.include
>@@ -158,7 +158,7 @@ modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj
> # Prefix -I with $(srctree) if it is not an absolute path.
> # skip if -I has no parameter
> addtree = $(if $(patsubst -I%,%,$(1)), \
>-$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
>+$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)))
> 
> # Find all -I options and call addtree
> flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))


The original code also missed a comma, this patch fixes it.

Thanks!
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