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perf tools: Correct Makefile.include

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It looks at O= and adjusts the $(OUTPUT) variable based on what the
output directory will be. However, when O is defined but empty, it
wrongly becomes the user's $HOME dir which is not what we want. So check
it is not empty before working with it further.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1361374353-30385-4-git-send-email-bp@alien8.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Borislav Petkov 2013-02-20 16:32:29 +01:00 committed by Arnaldo Carvalho de Melo
parent a50e433327
commit 9e4a66482e
1 changed files with 3 additions and 1 deletions
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4
tools/scripts/Makefile.include
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@ -1,3 +1,4 @@
ifneq ($(O),)
ifeq ($(origin O), command line)
dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
ABSOLUTE_O := $(shell cd $(O) ; pwd)
@ -7,9 +8,10 @@ ifeq ($(objtree),)
objtree := $(O)
endif
endif
endif
ifneq ($(OUTPUT),)
# check that the output directory actually exists
ifneq ($(OUTPUT),)
OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
endif