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kbuild: Do not pick up ARCH_{CPP,A,C}FLAGS from the environment

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Initialize the ARCH_* overrides before including the arch Makefile, to
avoid picking up the values from the environment. The variables can
still be overriden on the make command line, but this won't happen
by accident.

Signed-off-by: Michal Marek <mmarek@suse.com>
This commit is contained in:
Michal Marek 2015-07-16 18:23:53 +02:00
parent d770e558e2
commit 6dd3f13e42
1 changed files with 5 additions and 0 deletions
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5
Makefile
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@ -597,6 +597,11 @@ endif # $(dot-config)
# Defaults to vmlinux, but the arch makefile usually adds further targets
all: vmlinux
# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
# values of the respective KBUILD_* variables
ARCH_CPPFLAGS :=
ARCH_AFLAGS :=
ARCH_CFLAGS :=
include arch/$(SRCARCH)/Makefile
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)