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x86/build: Permit building with old make versions

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At least Make 3.82 dislikes the tab in front of the $(warning) function:

  arch/x86/Makefile:162: *** recipe commences before first target.  Stop.

Let's be gentle.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1944fcd8-e3df-d1f7-c0e4-60aeb1917a24@siemens.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Jan Kiszka 2017-05-23 18:27:54 +02:00 committed by Ingo Molnar
parent 519fb5c335
commit 7e6091209f
1 changed files with 1 additions and 1 deletions
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2
arch/x86/Makefile
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@ -159,7 +159,7 @@ ifdef CONFIG_FUNCTION_GRAPH_TRACER
# If '-Os' is enabled, disable it and print a warning.
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
undefine CONFIG_CC_OPTIMIZE_FOR_SIZE
$(warning Disabling CONFIG_CC_OPTIMIZE_FOR_SIZE. Your compiler does not have -mfentry so you cannot optimize for size with CONFIG_FUNCTION_GRAPH_TRACER.)
$(warning Disabling CONFIG_CC_OPTIMIZE_FOR_SIZE. Your compiler does not have -mfentry so you cannot optimize for size with CONFIG_FUNCTION_GRAPH_TRACER.)
endif
endif