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perf tools: Fix GNU make v3.80 compatibility issue 

According to Documentation/Changes, the kernel should be buildable with
GNU make 3.80+. tools/perf/config/utilities.mak contains the "$(or"
construct, which requires make 3.81.  This causes "make" to fail on
systems with GNU make 3.80.

Replace "$(or" with an equivalent "$(if" expression, to restore backward
compatibility. Also fix an issue where _get_attempt was called with only
one argument. This prevented the error message from printing the name of
the variable that can be used to fix the problem.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1357680156-15520-1-git-send-email-alcooperx@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Al Cooper 2013-01-08 16:22:36 -05:00 committed by Arnaldo Carvalho de Melo
parent 2d2481ddf6
commit 31160d7fea
1 changed files with 3 additions and 3 deletions
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6
tools/perf/config/utilities.mak
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@ -13,7 +13,7 @@ newline := $(newline)
# what should replace a newline when escaping
# newlines; the default is a bizarre string.
#
nl-escape = $(or $(1),m822df3020w6a44id34bt574ctac44eb9f4n)
nl-escape = $(if $(1),$(1),m822df3020w6a44id34bt574ctac44eb9f4n)
# escape-nl
#
@ -173,9 +173,9 @@ _ge-abspath = $(if $(is-executable),$(1))
# Usage: absolute-executable-path-or-empty = $(call get-executable-or-default,variable,default)
#
define get-executable-or-default
$(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2)))
$(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2),$(1)))
endef
_ge_attempt = $(or $(get-executable),$(_gea_warn),$(call _gea_err,$(2)))
_ge_attempt = $(if $(get-executable),$(get-executable),$(_gea_warn)$(call _gea_err,$(2)))
_gea_warn = $(warning The path '$(1)' is not executable.)
_gea_err = $(if $(1),$(error Please set '$(1)' appropriately))