linux-kernel - [PATCH] kbuild: do not add srctree to sysroot relative includes

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Date:	Tue, 16 Aug 2016 13:40:58 +0200
From:	Lars Persson <lars.persson@...s.com>
To:	mmarek@...e.com
Cc:	linux-kernel@...r.kernel.org, arnd@...db.de,
	Lars Persson <larper@...s.com>
Subject: [PATCH] kbuild: do not add srctree to sysroot relative includes

We need to filter out also -I=/path to allow sysroot relative
include paths in the makefiles of external modules.

Signed-off-by: Lars Persson <larper@...s.com>
---
 scripts/Kbuild.include | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 1792198..ffe5c6c 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -206,7 +206,7 @@ hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
 # Prefix -I with $(srctree) if it is not an absolute path.
 # skip if -I has no parameter
 addtree = $(if $(patsubst -I%,%,$(1)), \
-$(if $(filter-out -I/% -I./% -I../%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)))
+$(if $(filter-out -I/% -I./% -I../% -I=%,$(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)))
-- 
2.1.4