[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 <[email protected]>
---
 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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---

• References:
  • [PATCH 01/33] kbuild: asm-offsets.h is now cleaned with O=.. builds
    • From: Sam Ravnborg <[email protected]>
  • [PATCH 02/33] kbuild: New 'cc-fullversion' macro
    • From: Sam Ravnborg <[email protected]>
  • [PATCH 03/33] powerpc: Refuse to build 64-bit with GCC-4.2.0 and CONFIG_MODULES
    • From: Sam Ravnborg <[email protected]>
  • [PATCH 04/33] kbuild: document cc-fullversion
    • From: Sam Ravnborg <[email protected]>

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