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From: Frank Wunderlich <frank-w@public-files.de>
To: linux-kbuild@vger.kernel.org
Cc: Frank Wunderlich <frank-w@public-files.de>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] kbuild: Add DTC_CPP_FLAGS
Date: Wed, 18 Dec 2019 12:46:25 +0100	[thread overview]
Message-ID: <20191218114625.28438-1-frank-w@public-files.de> (raw)

With this Patch we are able to change cpp-preprocessor options
(e.g. -D...) for using conditions (#ifdef) in devicetree files
and dynamically add include searchpaths

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 scripts/Makefile.lib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 3fa32f83b2d7..c722a6c7786a 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -177,7 +177,7 @@ DTC_INCLUDE    := $(srctree)/scripts/dtc/include-prefixes
 
 dtc_cpp_flags  = -Wp,-MD,$(depfile).pre.tmp -nostdinc                    \
 		 $(addprefix -I,$(DTC_INCLUDE))                          \
-		 -undef -D__DTS__
+		 -undef -D__DTS__ $(DTC_CPP_FLAGS)
 
 # Useful for describing the dependency of composite objects
 # Usage:
-- 
2.17.1


             reply	other threads:[~2019-12-18 11:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-18 11:46 Frank Wunderlich [this message]
2019-12-18 13:31 ` [PATCH] kbuild: Add DTC_CPP_FLAGS Masahiro Yamada
2019-12-18 13:51   ` Rob Herring
2019-12-19 12:05     ` Aw: " Frank Wunderlich
2019-12-19 17:02       ` Rob Herring
2019-12-18 13:54   ` Aw: " Frank Wunderlich

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