linux-kernel - [PATCH 05/33] kbuild: avoid environment to set variables used by kbuild

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Message-Id: <11846813432300-git-send-email-sam@ravnborg.org>
Date:	Tue, 17 Jul 2007 16:08:34 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	linux-kernel@...r.kernel.org
Cc:	Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH 05/33] kbuild: avoid environment to set variables used by kbuild

A few of the variables used by kbuild has fixed naming.
Make sure we do not pick up random values from the environment.

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
---
 scripts/Makefile.build |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index a525112..3f7b451 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -7,6 +7,22 @@ src := $(obj)
 PHONY := __build
 __build:
 
+# Init all relevant variables used in kbuild files so
+# 1) they have correct type
+# 2) they do not inherit any value from the environment
+obj-y :=
+obj-m :=
+lib-y :=
+lib-m :=
+always :=
+targets :=
+subdir-y :=
+subdir-m :=
+EXTRA_AFLAGS   :=
+EXTRA_CFLAGS   :=
+EXTRA_CPPFLAGS :=
+EXTRA_LDFLAGS  :=
+
 # Read .config if it exist, otherwise ignore
 -include include/config/auto.conf
 
-- 
1.5.0.6

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